January→
Lowest 15% of July · 76K avg
Lowest 15% of July · 76K avg
Harsh 32°F / 18°F (0°C / -8°C)
Harsh 32°F / 18°F (0°C / -8°C)
Closed lodging Closed lodging The lowest average visits, with winter cold and lake-effect snow possible. Read the January guide →
January crowds Close × 75,633 average January visits in 2021–2025.
Monthly recreation visits 47 annual records · 1979–2025
January recreation visits, 1979 to 2025 NPS park-wide recreation visits for January in each year. The vertical scale starts at zero. Exact counts follow in the data table. Missing counts are gaps. 0 75k 150k 1979: 822 visits 1980: 3,969 visits 1981: 7,800 visits 1982: 5,551 visits 1983: 6,010 visits 1984: 10,651 visits 1985: 39,403 visits 1986: 90,441 visits 1987: 38,587 visits 1988: 61,882 visits 1989: 71,350 visits 1990: 74,242 visits 1991: 68,347 visits 1992: 67,950 visits 1993: 67,025 visits 1994: 46,775 visits 1995: 52,257 visits 1996: 37,746 visits 1997: 50,067 visits 1998: 59,636 visits 1999: 49,232 visits 2000: 60,394 visits 2001: 51,640 visits 2002: 72,888 visits 2003: 62,853 visits 2004: 48,885 visits 2005: 47,189 visits 2006: 79,738 visits 2007: 101,425 visits 2008: 103,752 visits 2009: 42,892 visits 2010: 55,054 visits 2011: 53,183 visits 2012: 58,521 visits 2013: 54,937 visits 2014: 40,701 visits 2015: 55,607 visits 2016: 56,588 visits 2017: 60,576 visits 2018: 70,652 visits 2019: 69,916 visits 2020: 82,444 visits 2021: 86,065 visits 2022: 71,633 visits 2023: 72,043 visits 2024: 61,625 visits 2025: 86,797 visits 1979 1989 1999 2009 2019 2025
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NPS recreation visits are visits, not unique visitors or a measure of how busy an individual trail feels. Counts can reflect closures, disruptions and changes in counting methods.
January weather Close × 1991 through 2020 averages Monthly precipitation 2.38 in / 60 mm Valparaiso Water Works at about 800 ft is an inland proxy south of the park, not a beach station. Lake breezes, waves and lake-effect snow can make shoreline conditions different. Air temperatures do not establish swimming conditions.
January weather through the years at Valparaiso Water Works, IN.
Average daily high and low (°F) 84 complete high-temperature records · 90 complete low-temperature records
■ High ■ Low
January: Average daily high and low (°F), 1893–2025 Only complete calendar months are plotted. Gaps indicate missing or flagged daily observations. Exact values follow in the table. 0 25 50 January 1894: average high 35.06 °F January 1895: average high 25.28 °F January 1896: average high 31.29 °F January 1898: average high 34.77 °F January 1900: average high 38.86 °F January 1904: average high 26.45 °F January 1916: average high 37.43 °F January 1917: average high 32.45 °F January 1918: average high 18.40 °F January 1919: average high 36.67 °F January 1920: average high 25.01 °F January 1921: average high 38.20 °F January 1922: average high 32.70 °F January 1923: average high 35.77 °F January 1924: average high 29.01 °F January 1925: average high 31.10 °F January 1926: average high 34.86 °F January 1927: average high 31.01 °F January 1928: average high 33.08 °F January 1929: average high 29.02 °F January 1930: average high 27.63 °F January 1931: average high 37.75 °F January 1932: average high 40.67 °F January 1933: average high 42.78 °F January 1934: average high 38.28 °F January 1935: average high 33.24 °F January 1936: average high 25.97 °F January 1937: average high 36.17 °F January 1939: average high 36.89 °F January 1940: average high 22.69 °F January 1941: average high 33.54 °F January 1943: average high 31.00 °F January 1944: average high 40.43 °F January 1945: average high 26.23 °F January 1946: average high 35.49 °F January 1947: average high 36.15 °F January 1948: average high 26.72 °F January 1950: average high 41.16 °F January 1951: average high 32.81 °F January 1952: average high 36.40 °F January 1953: average high 36.04 °F January 1954: average high 34.68 °F January 1955: average high 32.23 °F January 1956: average high 34.05 °F January 1957: average high 27.28 °F January 1958: average high 32.35 °F January 1959: average high 28.93 °F January 1960: average high 33.76 °F January 1961: average high 31.59 °F January 1962: average high 26.84 °F January 1963: average high 21.67 °F January 1964: average high 38.38 °F January 1965: average high 33.88 °F January 1966: average high 27.92 °F January 1967: average high 37.03 °F January 1968: average high 30.49 °F January 1969: average high 29.27 °F January 1970: average high 26.28 °F January 1971: average high 28.11 °F January 1972: average high 31.94 °F January 1973: average high 35.23 °F January 1974: average high 33.41 °F January 1975: average high 35.23 °F January 1976: average high 29.18 °F January 1977: average high 18.43 °F January 1978: average high 23.93 °F January 1980: average high 32.99 °F January 1983: average high 33.43 °F January 1984: average high 26.28 °F January 1986: average high 33.47 °F January 1987: average high 32.30 °F January 1988: average high 29.57 °F January 1989: average high 40.65 °F January 1990: average high 43.74 °F January 1991: average high 29.93 °F January 1992: average high 33.42 °F January 1993: average high 33.25 °F January 1994: average high 23.12 °F January 1995: average high 30.93 °F January 1996: average high 32.26 °F January 1997: average high 28.40 °F January 1998: average high 36.41 °F January 1999: average high 29.74 °F January 2000: average high 32.73 °F January 1895: average low 6.10 °F January 1896: average low 18.24 °F January 1898: average low 19.17 °F January 1902: average low 16.12 °F January 1903: average low 15.40 °F January 1904: average low 9.88 °F January 1905: average low 11.83 °F January 1906: average low 23.64 °F January 1916: average low 19.25 °F January 1918: average low 0.83 °F January 1919: average low 20.83 °F January 1920: average low 9.74 °F January 1921: average low 23.30 °F January 1922: average low 11.39 °F January 1923: average low 22.77 °F January 1924: average low 8.35 °F January 1925: average low 12.28 °F January 1926: average low 17.38 °F January 1927: average low 16.51 °F January 1928: average low 17.09 °F January 1929: average low 7.97 °F January 1930: average low 10.89 °F January 1931: average low 22.41 °F January 1932: average low 26.73 °F January 1933: average low 27.29 °F January 1934: average low 23.61 °F January 1935: average low 17.06 °F January 1936: average low 10.29 °F January 1937: average low 19.07 °F January 1938: average low 17.49 °F January 1939: average low 23.23 °F January 1940: average low 7.83 °F January 1941: average low 20.75 °F January 1942: average low 17.41 °F January 1943: average low 13.84 °F January 1944: average low 21.23 °F January 1945: average low 10.78 °F January 1946: average low 18.52 °F January 1947: average low 20.13 °F January 1948: average low 7.99 °F January 1950: average low 21.92 °F January 1951: average low 18.18 °F January 1952: average low 19.46 °F January 1953: average low 21.32 °F January 1954: average low 19.61 °F January 1955: average low 16.36 °F January 1956: average low 19.21 °F January 1957: average low 9.94 °F January 1958: average low 18.78 °F January 1959: average low 8.21 °F January 1960: average low 20.25 °F January 1961: average low 14.53 °F January 1962: average low 10.39 °F January 1963: average low 4.52 °F January 1964: average low 21.22 °F January 1965: average low 17.53 °F January 1966: average low 10.63 °F January 1967: average low 20.11 °F January 1968: average low 14.10 °F January 1969: average low 12.65 °F January 1970: average low 8.22 °F January 1971: average low 9.86 °F January 1972: average low 14.20 °F January 1973: average low 21.21 °F January 1974: average low 18.01 °F January 1975: average low 20.43 °F January 1977: average low 1.25 °F January 1978: average low 8.05 °F January 1979: average low 5.33 °F January 1980: average low 17.93 °F January 1984: average low 12.67 °F January 1985: average low 10.77 °F January 1986: average low 17.48 °F January 1987: average low 19.17 °F January 1988: average low 13.83 °F January 1989: average low 25.24 °F January 1990: average low 30.14 °F January 1991: average low 16.69 °F January 1992: average low 22.38 °F January 1993: average low 21.11 °F January 1994: average low 8.41 °F January 1995: average low 17.91 °F January 1996: average low 16.65 °F January 1997: average low 11.13 °F January 1998: average low 24.58 °F January 1999: average low 14.43 °F January 2000: average low 16.93 °F January 2002: average low 26.06 °F January 2004: average low 13.80 °F January 2005: average low 17.49 °F 1893 1959 2025
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Monthly precipitation (inches) 85 complete rain records
January: Monthly precipitation (inches), 1893–2025 Only complete calendar months are plotted. Gaps indicate missing or flagged daily observations. Exact values follow in the table. 0 2.5 5 January 1902: precipitation 0.68 in January 1903: precipitation 1.11 in January 1904: precipitation 2.48 in January 1905: precipitation 1.58 in January 1906: precipitation 3.54 in January 1915: precipitation 2.13 in January 1916: precipitation 4.87 in January 1917: precipitation 1.20 in January 1918: precipitation 3.14 in January 1919: precipitation 0.34 in January 1920: precipitation 1.39 in January 1921: precipitation 1.65 in January 1922: precipitation 2.43 in January 1923: precipitation 1.22 in January 1924: precipitation 2.52 in January 1925: precipitation 1.04 in January 1926: precipitation 2.12 in January 1927: precipitation 2.19 in January 1928: precipitation 0.93 in January 1929: precipitation 3.67 in January 1930: precipitation 3.40 in January 1931: precipitation 2.69 in January 1932: precipitation 2.41 in January 1933: precipitation 2.41 in January 1934: precipitation 1.00 in January 1935: precipitation 2.80 in January 1936: precipitation 1.54 in January 1937: precipitation 3.05 in January 1938: precipitation 1.21 in January 1939: precipitation 2.96 in January 1940: precipitation 1.71 in January 1941: precipitation 2.34 in January 1942: precipitation 2.26 in January 1943: precipitation 2.47 in January 1944: precipitation 1.10 in January 1945: precipitation 0.97 in January 1946: precipitation 1.89 in January 1947: precipitation 1.91 in January 1948: precipitation 1.81 in January 1950: precipitation 4.73 in January 1951: precipitation 1.71 in January 1952: precipitation 1.41 in January 1953: precipitation 2.24 in January 1954: precipitation 1.22 in January 1955: precipitation 1.44 in January 1956: precipitation 1.09 in January 1957: precipitation 2.01 in January 1958: precipitation 1.29 in January 1959: precipitation 4.19 in January 1960: precipitation 2.82 in January 1961: precipitation 0.30 in January 1962: precipitation 3.10 in January 1963: precipitation 1.18 in January 1964: precipitation 1.22 in January 1965: precipitation 4.17 in January 1966: precipitation 0.76 in January 1967: precipitation 2.98 in January 1968: precipitation 1.94 in January 1969: precipitation 2.45 in January 1970: precipitation 1.09 in January 1971: precipitation 0.85 in January 1972: precipitation 1.65 in January 1973: precipitation 2.30 in January 1974: precipitation 3.03 in January 1975: precipitation 3.74 in January 1976: precipitation 1.77 in January 1977: precipitation 0.87 in January 1978: precipitation 1.84 in January 1979: precipitation 3.15 in January 1980: precipitation 0.93 in January 1981: precipitation 0.83 in January 1982: precipitation 3.10 in January 1984: precipitation 0.78 in January 1985: precipitation 2.06 in January 1987: precipitation 1.85 in January 1990: precipitation 2.52 in January 1991: precipitation 1.94 in January 1992: precipitation 1.40 in January 1993: precipitation 3.56 in January 1994: precipitation 2.00 in January 1996: precipitation 1.13 in January 1997: precipitation 2.71 in January 1998: precipitation 3.91 in January 1999: precipitation 3.80 in January 2004: precipitation 0.86 in 1893 1959 2025
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Hover, focus or tap a bar to see its year and value.
Valparaiso Water Works, IN station observations, not a park-wide average or forecast. Complete quality-screened calendar months only, separately by metric. Daily high/low means and total precipitation; incomplete months stay null. No interpolation or substitution. Completed years only; separate from 1991-2020 normals.
January in-park stays Close × Dunewood, Central Avenue walk-in camping and the separate Dunbar group site; Indiana Dunes State Park is outside this inventory. Normal seasons are planning guidance, not vacancies. Opening/closing months are partial. Unverified means confirm directly. These are normal seasonal schedules, not room or campsite availability.
Backcountry trips, permits and specialist travel need separate planning and are outside the frontcountry comparison.
February→
Lowest 16% of July · 83K avg
Lowest 16% of July · 83K avg
Harsh 36°F / 21°F (2°C / -6°C)
Harsh 36°F / 21°F (2°C / -6°C)
Closed lodging Closed lodging Winter shoreline conditions. Stay off unstable shelf ice. Read the February guide →
February crowds Close × 82,933 average February visits in 2021–2025.
Monthly recreation visits 47 annual records · 1979–2025
February recreation visits, 1979 to 2025 NPS park-wide recreation visits for February in each year. The vertical scale starts at zero. Exact counts follow in the data table. Missing counts are gaps. 0 75k 150k 1979: 1,643 visits 1980: 3,720 visits 1981: 5,976 visits 1982: 8,232 visits 1983: 7,795 visits 1984: 9,106 visits 1985: 47,997 visits 1986: 54,560 visits 1987: 54,960 visits 1988: 67,916 visits 1989: 67,596 visits 1990: 71,651 visits 1991: 82,004 visits 1992: 78,125 visits 1993: 63,002 visits 1994: 55,652 visits 1995: 58,716 visits 1996: 60,815 visits 1997: 46,304 visits 1998: 94,263 visits 1999: 62,552 visits 2000: 63,790 visits 2001: 49,950 visits 2002: 55,749 visits 2003: 53,175 visits 2004: 109,572 visits 2005: 48,589 visits 2006: 91,209 visits 2007: 90,281 visits 2008: 97,179 visits 2009: 47,599 visits 2010: 62,911 visits 2011: 49,952 visits 2012: 51,948 visits 2013: 47,432 visits 2014: 51,423 visits 2015: 47,594 visits 2016: 73,072 visits 2017: 85,561 visits 2018: 70,450 visits 2019: 85,702 visits 2020: 87,813 visits 2021: 93,430 visits 2022: 74,372 visits 2023: 85,594 visits 2024: 92,355 visits 2025: 68,915 visits 1979 1989 1999 2009 2019 2025
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Hover, focus or tap a bar to see its year and value.
NPS recreation visits are visits, not unique visitors or a measure of how busy an individual trail feels. Counts can reflect closures, disruptions and changes in counting methods.
February weather Close × 1991 through 2020 averages Monthly precipitation 2.24 in / 57 mm Valparaiso Water Works at about 800 ft is an inland proxy south of the park, not a beach station. Lake breezes, waves and lake-effect snow can make shoreline conditions different. Air temperatures do not establish swimming conditions.
February weather through the years at Valparaiso Water Works, IN.
Average daily high and low (°F) 90 complete high-temperature records · 87 complete low-temperature records
■ High ■ Low
February: Average daily high and low (°F), 1893–2025 Only complete calendar months are plotted. Gaps indicate missing or flagged daily observations. Exact values follow in the table. 0 25 50 February 1894: average high 28.98 °F February 1895: average high 24.04 °F February 1896: average high 33.10 °F February 1897: average high 34.39 °F February 1904: average high 26.86 °F February 1905: average high 26.77 °F February 1915: average high 40.47 °F February 1916: average high 32.22 °F February 1917: average high 29.25 °F February 1918: average high 37.07 °F February 1919: average high 36.80 °F February 1920: average high 31.94 °F February 1921: average high 38.39 °F February 1922: average high 38.47 °F February 1923: average high 29.36 °F February 1924: average high 33.85 °F February 1925: average high 40.96 °F February 1926: average high 36.18 °F February 1927: average high 42.25 °F February 1928: average high 37.93 °F February 1929: average high 29.99 °F February 1930: average high 45.88 °F February 1931: average high 42.84 °F February 1932: average high 43.10 °F February 1933: average high 35.46 °F February 1934: average high 30.73 °F February 1935: average high 35.32 °F February 1936: average high 25.14 °F February 1937: average high 35.18 °F February 1938: average high 40.72 °F February 1939: average high 35.94 °F February 1940: average high 34.05 °F February 1941: average high 32.00 °F February 1942: average high 30.53 °F February 1943: average high 38.83 °F February 1944: average high 37.52 °F February 1945: average high 35.82 °F February 1946: average high 38.19 °F February 1947: average high 29.03 °F February 1948: average high 35.23 °F February 1949: average high 35.77 °F February 1950: average high 33.22 °F February 1951: average high 34.65 °F February 1952: average high 38.85 °F February 1953: average high 42.07 °F February 1954: average high 45.61 °F February 1955: average high 36.04 °F February 1956: average high 35.86 °F February 1957: average high 40.14 °F February 1958: average high 28.65 °F February 1959: average high 34.95 °F February 1960: average high 32.89 °F February 1961: average high 41.62 °F February 1962: average high 33.01 °F February 1963: average high 28.82 °F February 1964: average high 36.17 °F February 1965: average high 36.11 °F February 1966: average high 36.20 °F February 1967: average high 31.72 °F February 1968: average high 33.14 °F February 1969: average high 35.93 °F February 1970: average high 35.37 °F February 1971: average high 35.23 °F February 1972: average high 34.94 °F February 1973: average high 36.13 °F February 1974: average high 35.32 °F February 1975: average high 33.68 °F February 1976: average high 45.94 °F February 1977: average high 34.52 °F February 1978: average high 25.61 °F February 1979: average high 25.73 °F February 1980: average high 32.12 °F February 1981: average high 38.11 °F February 1985: average high 30.21 °F February 1987: average high 41.26 °F February 1988: average high 32.37 °F February 1989: average high 28.67 °F February 1990: average high 41.87 °F February 1992: average high 39.34 °F February 1993: average high 32.24 °F February 1994: average high 31.04 °F February 1995: average high 36.46 °F February 1996: average high 37.55 °F February 1997: average high 36.65 °F February 1998: average high 45.03 °F February 1999: average high 43.24 °F February 2000: average high 42.25 °F February 2001: average high 37.13 °F February 2002: average high 40.97 °F February 2005: average high 39.09 °F February 1894: average low 9.49 °F February 1895: average low 6.55 °F February 1896: average low 17.02 °F February 1897: average low 22.57 °F February 1902: average low 6.75 °F February 1903: average low 15.65 °F February 1904: average low 10.28 °F February 1905: average low 9.35 °F February 1915: average low 26.21 °F February 1916: average low 14.73 °F February 1917: average low 9.13 °F February 1918: average low 16.89 °F February 1919: average low 21.06 °F February 1920: average low 16.07 °F February 1921: average low 24.31 °F February 1922: average low 19.90 °F February 1923: average low 13.01 °F February 1924: average low 19.51 °F February 1925: average low 22.50 °F February 1926: average low 24.22 °F February 1927: average low 25.91 °F February 1928: average low 22.01 °F February 1929: average low 9.97 °F February 1930: average low 28.21 °F February 1931: average low 26.52 °F February 1932: average low 25.17 °F February 1933: average low 15.68 °F February 1934: average low 10.69 °F February 1935: average low 23.25 °F February 1936: average low 5.30 °F February 1937: average low 18.67 °F February 1938: average low 26.92 °F February 1939: average low 16.85 °F February 1940: average low 22.34 °F February 1941: average low 16.91 °F February 1943: average low 18.61 °F February 1944: average low 20.60 °F February 1947: average low 11.81 °F February 1948: average low 16.52 °F February 1949: average low 20.08 °F February 1950: average low 17.50 °F February 1951: average low 19.25 °F February 1952: average low 24.30 °F February 1953: average low 22.32 °F February 1954: average low 28.18 °F February 1955: average low 19.14 °F February 1956: average low 20.32 °F February 1957: average low 24.66 °F February 1958: average low 13.79 °F February 1959: average low 17.62 °F February 1960: average low 19.62 °F February 1961: average low 22.90 °F February 1962: average low 17.15 °F February 1963: average low 8.49 °F February 1964: average low 18.48 °F February 1965: average low 17.73 °F February 1966: average low 19.44 °F February 1967: average low 12.21 °F February 1968: average low 14.53 °F February 1969: average low 21.18 °F February 1970: average low 16.74 °F February 1971: average low 20.23 °F February 1972: average low 16.54 °F February 1973: average low 21.93 °F February 1974: average low 18.63 °F February 1975: average low 21.39 °F February 1976: average low 25.53 °F February 1977: average low 16.58 °F February 1978: average low 3.13 °F February 1979: average low 7.41 °F February 1981: average low 19.75 °F February 1986: average low 19.57 °F February 1987: average low 24.18 °F February 1988: average low 14.88 °F February 1989: average low 15.20 °F February 1990: average low 27.20 °F February 1991: average low 25.10 °F February 1992: average low 27.11 °F February 1993: average low 16.47 °F February 1994: average low 12.82 °F February 1995: average low 20.33 °F February 1996: average low 19.94 °F February 1997: average low 23.84 °F February 1998: average low 30.47 °F February 1999: average low 26.57 °F February 2000: average low 25.51 °F February 2005: average low 25.49 °F 1893 1959 2025
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Hover, focus or tap a bar to see its year and value.
Monthly precipitation (inches) 87 complete rain records
February: Monthly precipitation (inches), 1893–2025 Only complete calendar months are plotted. Gaps indicate missing or flagged daily observations. Exact values follow in the table. 0 2.5 5 February 1902: precipitation 0.83 in February 1903: precipitation 2.74 in February 1904: precipitation 1.70 in February 1905: precipitation 1.44 in February 1906: precipitation 1.82 in February 1915: precipitation 1.78 in February 1916: precipitation 0.48 in February 1917: precipitation 0.70 in February 1918: precipitation 2.13 in February 1919: precipitation 2.63 in February 1920: precipitation 0.59 in February 1921: precipitation 0.75 in February 1922: precipitation 1.19 in February 1923: precipitation 1.80 in February 1924: precipitation 2.40 in February 1925: precipitation 1.19 in February 1926: precipitation 2.96 in February 1927: precipitation 2.22 in February 1928: precipitation 2.22 in February 1929: precipitation 0.76 in February 1930: precipitation 2.03 in February 1931: precipitation 0.77 in February 1932: precipitation 1.37 in February 1933: precipitation 2.09 in February 1934: precipitation 1.61 in February 1935: precipitation 4.52 in February 1936: precipitation 1.78 in February 1937: precipitation 1.48 in February 1938: precipitation 3.15 in February 1939: precipitation 3.73 in February 1940: precipitation 1.24 in February 1941: precipitation 1.34 in February 1942: precipitation 3.62 in February 1943: precipitation 1.62 in February 1944: precipitation 1.64 in February 1945: precipitation 1.45 in February 1946: precipitation 2.06 in February 1947: precipitation 0.58 in February 1948: precipitation 2.39 in February 1949: precipitation 2.87 in February 1950: precipitation 3.52 in February 1951: precipitation 1.52 in February 1952: precipitation 0.69 in February 1953: precipitation 1.71 in February 1954: precipitation 3.95 in February 1955: precipitation 1.71 in February 1956: precipitation 2.65 in February 1957: precipitation 1.28 in February 1958: precipitation 1.12 in February 1959: precipitation 1.95 in February 1960: precipitation 2.79 in February 1961: precipitation 0.94 in February 1962: precipitation 1.09 in February 1963: precipitation 0.68 in February 1964: precipitation 1.06 in February 1965: precipitation 2.05 in February 1966: precipitation 1.05 in February 1967: precipitation 1.43 in February 1968: precipitation 3.54 in February 1969: precipitation 0.20 in February 1970: precipitation 0.89 in February 1971: precipitation 1.89 in February 1972: precipitation 0.87 in February 1973: precipitation 1.56 in February 1974: precipitation 2.55 in February 1975: precipitation 2.30 in February 1976: precipitation 2.85 in February 1977: precipitation 1.16 in February 1978: precipitation 1.07 in February 1980: precipitation 1.11 in February 1981: precipitation 1.67 in February 1982: precipitation 1.28 in February 1984: precipitation 2.09 in February 1985: precipitation 4.54 in February 1986: precipitation 3.07 in February 1989: precipitation 1.65 in February 1990: precipitation 4.02 in February 1991: precipitation 0.82 in February 1992: precipitation 1.54 in February 1993: precipitation 1.24 in February 1994: precipitation 1.21 in February 1995: precipitation 1.03 in February 1996: precipitation 1.37 in February 1998: precipitation 1.96 in February 1999: precipitation 1.86 in February 2004: precipitation 0.48 in February 2005: precipitation 2.37 in 1893 1959 2025
Scroll the chart to see all years →
Hover, focus or tap a bar to see its year and value.
Valparaiso Water Works, IN station observations, not a park-wide average or forecast. Complete quality-screened calendar months only, separately by metric. Daily high/low means and total precipitation; incomplete months stay null. No interpolation or substitution. Completed years only; separate from 1991-2020 normals.
February in-park stays Close × Dunewood, Central Avenue walk-in camping and the separate Dunbar group site; Indiana Dunes State Park is outside this inventory. Normal seasons are planning guidance, not vacancies. Opening/closing months are partial. Unverified means confirm directly. These are normal seasonal schedules, not room or campsite availability.
Backcountry trips, permits and specialist travel need separate planning and are outside the frontcountry comparison.
March→
Quiet 26% of July · 134K avg
Quiet 26% of July · 134K avg
Rough 48°F / 29°F (9°C / -2°C)
Rough 48°F / 29°F (9°C / -2°C)
Closed lodging Closed lodging Cold nights and variable spring weather. Standard camping has not begun. Read the March guide →
March crowds Close × 133,910 average March visits in 2021–2025.
Monthly recreation visits 47 annual records · 1979–2025
March recreation visits, 1979 to 2025 NPS park-wide recreation visits for March in each year. The vertical scale starts at zero. Exact counts follow in the data table. Missing counts are gaps. 0 125k 250k 1979: 3,049 visits 1980: 9,117 visits 1981: 24,335 visits 1982: 20,240 visits 1983: 29,073 visits 1984: 15,036 visits 1985: 82,956 visits 1986: 101,177 visits 1987: 78,211 visits 1988: 89,714 visits 1989: 97,779 visits 1990: 116,094 visits 1991: 121,251 visits 1992: 108,608 visits 1993: 86,770 visits 1994: 88,733 visits 1995: 95,241 visits 1996: 84,303 visits 1997: 82,368 visits 1998: 90,113 visits 1999: 99,955 visits 2000: 97,138 visits 2001: 85,289 visits 2002: 80,172 visits 2003: 113,304 visits 2004: 120,575 visits 2005: 95,605 visits 2006: 142,869 visits 2007: 121,486 visits 2008: 67,309 visits 2009: 110,867 visits 2010: 82,251 visits 2011: 70,320 visits 2012: 106,271 visits 2013: 77,032 visits 2014: 85,786 visits 2015: 93,170 visits 2016: 90,653 visits 2017: 90,620 visits 2018: 128,682 visits 2019: 219,070 visits 2020: 93,273 visits 2021: 171,050 visits 2022: 127,431 visits 2023: 123,793 visits 2024: 122,949 visits 2025: 124,329 visits 1979 1989 1999 2009 2019 2025
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Hover, focus or tap a bar to see its year and value.
NPS recreation visits are visits, not unique visitors or a measure of how busy an individual trail feels. Counts can reflect closures, disruptions and changes in counting methods.
March weather Close × 1991 through 2020 averages Monthly precipitation 2.63 in / 67 mm Valparaiso Water Works at about 800 ft is an inland proxy south of the park, not a beach station. Lake breezes, waves and lake-effect snow can make shoreline conditions different. Air temperatures do not establish swimming conditions.
March weather through the years at Valparaiso Water Works, IN.
Average daily high and low (°F) 88 complete high-temperature records · 89 complete low-temperature records
■ High ■ Low
March: Average daily high and low (°F), 1893–2025 Only complete calendar months are plotted. Gaps indicate missing or flagged daily observations. Exact values follow in the table. 0 30 60 March 1893: average high 42.94 °F March 1894: average high 50.44 °F March 1895: average high 44.39 °F March 1896: average high 39.46 °F March 1897: average high 46.61 °F March 1900: average high 40.76 °F March 1904: average high 45.54 °F March 1905: average high 51.67 °F March 1906: average high 38.59 °F March 1915: average high 40.73 °F March 1916: average high 42.22 °F March 1917: average high 46.30 °F March 1918: average high 55.34 °F March 1919: average high 48.11 °F March 1922: average high 46.84 °F March 1923: average high 42.67 °F March 1924: average high 39.84 °F March 1925: average high 49.98 °F March 1926: average high 39.11 °F March 1927: average high 49.04 °F March 1928: average high 45.20 °F March 1929: average high 53.81 °F March 1930: average high 45.99 °F March 1931: average high 40.09 °F March 1932: average high 37.21 °F March 1934: average high 40.05 °F March 1935: average high 51.90 °F March 1936: average high 48.33 °F March 1937: average high 40.83 °F March 1938: average high 54.08 °F March 1939: average high 47.23 °F March 1940: average high 38.73 °F March 1941: average high 40.89 °F March 1942: average high 47.72 °F March 1943: average high 43.01 °F March 1944: average high 39.15 °F March 1945: average high 59.48 °F March 1946: average high 58.89 °F March 1947: average high 38.67 °F March 1949: average high 46.61 °F March 1950: average high 39.41 °F March 1951: average high 43.75 °F March 1952: average high 42.99 °F March 1953: average high 47.69 °F March 1954: average high 43.16 °F March 1955: average high 47.32 °F March 1956: average high 47.47 °F March 1957: average high 47.02 °F March 1958: average high 41.84 °F March 1959: average high 46.37 °F March 1960: average high 34.26 °F March 1961: average high 49.55 °F March 1962: average high 41.00 °F March 1963: average high 50.43 °F March 1964: average high 45.84 °F March 1966: average high 49.39 °F March 1967: average high 45.87 °F March 1968: average high 52.25 °F March 1969: average high 43.74 °F March 1970: average high 41.66 °F March 1971: average high 42.22 °F March 1972: average high 45.08 °F March 1973: average high 54.58 °F March 1974: average high 48.00 °F March 1975: average high 43.06 °F March 1976: average high 54.51 °F March 1977: average high 52.58 °F March 1978: average high 39.58 °F March 1979: average high 48.91 °F March 1980: average high 43.37 °F March 1981: average high 48.17 °F March 1988: average high 48.26 °F March 1989: average high 46.38 °F March 1990: average high 51.65 °F March 1991: average high 51.20 °F March 1992: average high 47.18 °F March 1993: average high 40.96 °F March 1994: average high 47.26 °F March 1995: average high 49.47 °F March 1996: average high 41.78 °F March 1997: average high 49.52 °F March 1998: average high 45.99 °F March 1999: average high 45.35 °F March 2000: average high 56.54 °F March 2001: average high 43.96 °F March 2002: average high 44.21 °F March 2003: average high 49.99 °F March 2004: average high 50.30 °F March 1894: average low 29.38 °F March 1895: average low 23.08 °F March 1896: average low 22.65 °F March 1900: average low 20.91 °F March 1902: average low 31.34 °F March 1903: average low 32.83 °F March 1904: average low 28.43 °F March 1905: average low 32.09 °F March 1906: average low 21.61 °F March 1915: average low 24.06 °F March 1916: average low 22.54 °F March 1917: average low 27.19 °F March 1918: average low 29.87 °F March 1919: average low 28.61 °F March 1922: average low 30.68 °F March 1923: average low 24.75 °F March 1924: average low 27.35 °F March 1925: average low 27.66 °F March 1926: average low 20.64 °F March 1927: average low 32.02 °F March 1928: average low 27.53 °F March 1929: average low 33.17 °F March 1930: average low 26.19 °F March 1931: average low 27.84 °F March 1932: average low 19.93 °F March 1933: average low 28.48 °F March 1934: average low 23.20 °F March 1935: average low 33.57 °F March 1936: average low 29.74 °F March 1937: average low 25.15 °F March 1938: average low 34.44 °F March 1939: average low 27.61 °F March 1940: average low 25.05 °F March 1941: average low 23.19 °F March 1942: average low 30.52 °F March 1943: average low 23.16 °F March 1944: average low 24.00 °F March 1946: average low 36.80 °F March 1947: average low 22.42 °F March 1949: average low 28.80 °F March 1950: average low 24.56 °F March 1951: average low 26.81 °F March 1952: average low 27.28 °F March 1953: average low 29.31 °F March 1954: average low 25.98 °F March 1955: average low 26.75 °F March 1956: average low 26.06 °F March 1958: average low 27.98 °F March 1959: average low 26.81 °F March 1960: average low 15.27 °F March 1961: average low 31.74 °F March 1962: average low 26.39 °F March 1963: average low 30.02 °F March 1964: average low 27.06 °F March 1965: average low 22.22 °F March 1966: average low 29.13 °F March 1967: average low 28.65 °F March 1968: average low 31.39 °F March 1969: average low 24.33 °F March 1970: average low 23.61 °F March 1971: average low 25.92 °F March 1972: average low 25.77 °F March 1973: average low 36.08 °F March 1974: average low 30.71 °F March 1975: average low 25.58 °F March 1976: average low 33.77 °F March 1977: average low 35.11 °F March 1978: average low 22.97 °F March 1979: average low 28.59 °F March 1980: average low 25.35 °F March 1981: average low 29.76 °F March 1982: average low 26.47 °F March 1983: average low 31.61 °F March 1984: average low 21.91 °F March 1987: average low 30.60 °F March 1989: average low 27.11 °F March 1990: average low 35.00 °F March 1991: average low 32.41 °F March 1992: average low 29.64 °F March 1993: average low 26.96 °F March 1994: average low 27.22 °F March 1995: average low 31.07 °F March 1996: average low 22.04 °F March 1997: average low 30.25 °F March 1999: average low 25.39 °F March 2000: average low 34.57 °F March 2001: average low 26.20 °F March 2002: average low 25.47 °F March 2004: average low 34.42 °F 1893 1959 2025
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Monthly precipitation (inches) 86 complete rain records
March: Monthly precipitation (inches), 1893–2025 Only complete calendar months are plotted. Gaps indicate missing or flagged daily observations. Exact values follow in the table. 0 3.5 7 March 1902: precipitation 2.80 in March 1903: precipitation 1.82 in March 1904: precipitation 4.98 in March 1905: precipitation 2.37 in March 1906: precipitation 2.58 in March 1915: precipitation 0.54 in March 1916: precipitation 3.17 in March 1917: precipitation 2.63 in March 1918: precipitation 1.40 in March 1919: precipitation 3.76 in March 1920: precipitation 4.22 in March 1921: precipitation 4.89 in March 1922: precipitation 5.71 in March 1923: precipitation 3.12 in March 1924: precipitation 3.57 in March 1925: precipitation 3.92 in March 1926: precipitation 3.62 in March 1927: precipitation 2.28 in March 1928: precipitation 1.84 in March 1929: precipitation 4.97 in March 1930: precipitation 2.68 in March 1931: precipitation 3.65 in March 1932: precipitation 4.26 in March 1933: precipitation 3.85 in March 1934: precipitation 2.58 in March 1935: precipitation 4.28 in March 1936: precipitation 1.34 in March 1937: precipitation 1.42 in March 1938: precipitation 4.45 in March 1939: precipitation 2.24 in March 1940: precipitation 2.12 in March 1941: precipitation 1.86 in March 1942: precipitation 3.38 in March 1943: precipitation 4.73 in March 1944: precipitation 6.74 in March 1945: precipitation 3.06 in March 1946: precipitation 2.92 in March 1947: precipitation 2.80 in March 1949: precipitation 3.09 in March 1950: precipitation 2.81 in March 1951: precipitation 2.60 in March 1952: precipitation 3.22 in March 1953: precipitation 3.42 in March 1954: precipitation 4.15 in March 1955: precipitation 2.21 in March 1956: precipitation 1.31 in March 1957: precipitation 2.43 in March 1958: precipitation 0.63 in March 1959: precipitation 3.01 in March 1960: precipitation 0.98 in March 1961: precipitation 3.55 in March 1962: precipitation 1.85 in March 1963: precipitation 3.10 in March 1964: precipitation 3.04 in March 1965: precipitation 3.59 in March 1966: precipitation 2.30 in March 1967: precipitation 2.02 in March 1968: precipitation 1.32 in March 1969: precipitation 2.59 in March 1970: precipitation 3.32 in March 1971: precipitation 1.84 in March 1972: precipitation 3.43 in March 1973: precipitation 4.65 in March 1974: precipitation 3.27 in March 1975: precipitation 2.68 in March 1976: precipitation 5.58 in March 1977: precipitation 5.35 in March 1978: precipitation 1.46 in March 1979: precipitation 3.31 in March 1980: precipitation 3.20 in March 1981: precipitation 0.55 in March 1982: precipitation 3.74 in March 1984: precipitation 3.62 in March 1985: precipitation 5.01 in March 1986: precipitation 1.71 in March 1989: precipitation 2.74 in March 1990: precipitation 2.92 in March 1992: precipitation 3.16 in March 1993: precipitation 4.32 in March 1995: precipitation 2.30 in March 1996: precipitation 0.74 in March 1997: precipitation 1.66 in March 1998: precipitation 5.49 in March 1999: precipitation 2.00 in March 2003: precipitation 1.00 in March 2004: precipitation 3.93 in 1893 1959 2025
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Valparaiso Water Works, IN station observations, not a park-wide average or forecast. Complete quality-screened calendar months only, separately by metric. Daily high/low means and total precipitation; incomplete months stay null. No interpolation or substitution. Completed years only; separate from 1991-2020 normals.
March in-park stays Close × Dunewood, Central Avenue walk-in camping and the separate Dunbar group site; Indiana Dunes State Park is outside this inventory. Normal seasons are planning guidance, not vacancies. Opening/closing months are partial. Unverified means confirm directly. These are normal seasonal schedules, not room or campsite availability.
Backcountry trips, permits and specialist travel need separate planning and are outside the frontcountry comparison.
April→
Quiet 33% of July · 166K avg
Quiet 33% of July · 166K avg
Good 61°F / 39°F (16°C / 4°C)
Good 61°F / 39°F (16°C / 4°C)
Limited lodging Limited lodging Dunewood normally begins its season. Lakeshore walks still need warm layers. Read the April guide →
April crowds Close × 166,419 average April visits in 2021–2025.
Monthly recreation visits 47 annual records · 1979–2025
April recreation visits, 1979 to 2025 NPS park-wide recreation visits for April in each year. The vertical scale starts at zero. Exact counts follow in the data table. Missing counts are gaps. 0 125k 250k 1979: 9,633 visits 1980: 15,704 visits 1981: 16,356 visits 1982: 18,973 visits 1983: 88,574 visits 1984: 59,193 visits 1985: 205,326 visits 1986: 155,610 visits 1987: 109,427 visits 1988: 139,687 visits 1989: 128,005 visits 1990: 185,597 visits 1991: 152,926 visits 1992: 124,426 visits 1993: 121,069 visits 1994: 131,190 visits 1995: 104,054 visits 1996: 90,460 visits 1997: 84,975 visits 1998: 154,915 visits 1999: 99,194 visits 2000: 102,971 visits 2001: 108,564 visits 2002: 118,132 visits 2003: 111,582 visits 2004: 118,005 visits 2005: 123,495 visits 2006: 172,698 visits 2007: 184,872 visits 2008: 108,459 visits 2009: 100,971 visits 2010: 121,602 visits 2011: 86,951 visits 2012: 73,145 visits 2013: 101,281 visits 2014: 89,324 visits 2015: 93,419 visits 2016: 99,945 visits 2017: 102,570 visits 2018: 93,585 visits 2019: 107,862 visits 2020: 91,272 visits 2021: 234,442 visits 2022: 141,437 visits 2023: 149,947 visits 2024: 168,932 visits 2025: 137,336 visits 1979 1989 1999 2009 2019 2025
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NPS recreation visits are visits, not unique visitors or a measure of how busy an individual trail feels. Counts can reflect closures, disruptions and changes in counting methods.
April weather Close × 1991 through 2020 averages Monthly precipitation 3.74 in / 95 mm Valparaiso Water Works at about 800 ft is an inland proxy south of the park, not a beach station. Lake breezes, waves and lake-effect snow can make shoreline conditions different. Air temperatures do not establish swimming conditions.
April weather through the years at Valparaiso Water Works, IN.
Average daily high and low (°F) 89 complete high-temperature records · 90 complete low-temperature records
■ High ■ Low
April: Average daily high and low (°F), 1893–2025 Only complete calendar months are plotted. Gaps indicate missing or flagged daily observations. Exact values follow in the table. 0 35 70 April 1894: average high 57.16 °F April 1895: average high 61.16 °F April 1896: average high 65.84 °F April 1898: average high 55.81 °F April 1899: average high 64.74 °F April 1900: average high 65.39 °F April 1904: average high 54.47 °F April 1905: average high 60.54 °F April 1906: average high 65.25 °F April 1915: average high 66.04 °F April 1916: average high 58.39 °F April 1917: average high 54.47 °F April 1919: average high 57.27 °F April 1920: average high 51.54 °F April 1921: average high 63.12 °F April 1922: average high 59.57 °F April 1923: average high 57.90 °F April 1924: average high 58.58 °F April 1925: average high 61.05 °F April 1926: average high 51.59 °F April 1927: average high 57.55 °F April 1928: average high 54.89 °F April 1929: average high 60.54 °F April 1930: average high 60.41 °F April 1931: average high 61.00 °F April 1932: average high 58.26 °F April 1933: average high 58.04 °F April 1934: average high 60.67 °F April 1935: average high 54.77 °F April 1936: average high 53.64 °F April 1937: average high 57.62 °F April 1938: average high 59.59 °F April 1939: average high 53.35 °F April 1940: average high 54.87 °F April 1941: average high 65.60 °F April 1942: average high 64.01 °F April 1943: average high 55.59 °F April 1944: average high 55.02 °F April 1945: average high 58.24 °F April 1946: average high 61.90 °F April 1947: average high 57.42 °F April 1948: average high 62.93 °F April 1949: average high 58.16 °F April 1950: average high 50.76 °F April 1951: average high 54.21 °F April 1952: average high 61.06 °F April 1953: average high 55.95 °F April 1954: average high 65.02 °F April 1955: average high 67.63 °F April 1956: average high 59.10 °F April 1957: average high 58.01 °F April 1958: average high 61.10 °F April 1959: average high 58.75 °F April 1960: average high 63.53 °F April 1961: average high 52.09 °F April 1962: average high 59.96 °F April 1963: average high 63.94 °F April 1964: average high 61.74 °F April 1965: average high 59.24 °F April 1966: average high 57.16 °F April 1967: average high 61.36 °F April 1968: average high 61.83 °F April 1969: average high 62.37 °F April 1970: average high 61.47 °F April 1971: average high 60.95 °F April 1972: average high 57.11 °F April 1973: average high 58.74 °F April 1974: average high 62.91 °F April 1975: average high 53.98 °F April 1976: average high 64.24 °F April 1977: average high 66.81 °F April 1979: average high 56.98 °F April 1980: average high 57.57 °F April 1981: average high 64.56 °F April 1983: average high 54.25 °F April 1984: average high 56.43 °F April 1987: average high 62.31 °F April 1989: average high 57.67 °F April 1990: average high 60.10 °F April 1991: average high 63.61 °F April 1992: average high 54.99 °F April 1993: average high 56.26 °F April 1994: average high 63.63 °F April 1995: average high 56.92 °F April 1996: average high 58.18 °F April 1997: average high 55.96 °F April 1998: average high 60.51 °F April 1999: average high 62.25 °F April 2000: average high 60.28 °F April 1894: average low 37.65 °F April 1895: average low 40.56 °F April 1896: average low 43.56 °F April 1898: average low 35.92 °F April 1899: average low 40.70 °F April 1903: average low 39.52 °F April 1905: average low 37.53 °F April 1906: average low 38.92 °F April 1915: average low 41.84 °F April 1916: average low 36.06 °F April 1917: average low 36.28 °F April 1918: average low 35.21 °F April 1919: average low 38.53 °F April 1920: average low 32.92 °F April 1921: average low 43.39 °F April 1922: average low 38.48 °F April 1923: average low 34.98 °F April 1924: average low 38.77 °F April 1925: average low 40.19 °F April 1926: average low 31.37 °F April 1927: average low 39.14 °F April 1928: average low 35.25 °F April 1929: average low 41.31 °F April 1930: average low 37.91 °F April 1931: average low 37.53 °F April 1932: average low 36.36 °F April 1933: average low 37.81 °F April 1934: average low 36.93 °F April 1935: average low 36.14 °F April 1937: average low 37.52 °F April 1938: average low 40.43 °F April 1939: average low 35.79 °F April 1940: average low 35.60 °F April 1941: average low 43.11 °F April 1942: average low 40.90 °F April 1943: average low 34.51 °F April 1944: average low 36.07 °F April 1945: average low 38.23 °F April 1946: average low 38.74 °F April 1947: average low 35.92 °F April 1949: average low 36.33 °F April 1950: average low 33.84 °F April 1951: average low 37.03 °F April 1952: average low 38.21 °F April 1953: average low 35.09 °F April 1954: average low 41.84 °F April 1955: average low 42.17 °F April 1956: average low 35.30 °F April 1957: average low 38.71 °F April 1959: average low 38.04 °F April 1960: average low 41.21 °F April 1961: average low 34.83 °F April 1962: average low 37.53 °F April 1963: average low 39.07 °F April 1964: average low 39.63 °F April 1965: average low 37.58 °F April 1966: average low 36.88 °F April 1967: average low 39.57 °F April 1968: average low 40.00 °F April 1969: average low 39.57 °F April 1970: average low 39.05 °F April 1971: average low 34.66 °F April 1972: average low 34.84 °F April 1973: average low 40.14 °F April 1974: average low 40.67 °F April 1975: average low 33.90 °F April 1976: average low 40.21 °F April 1979: average low 36.16 °F April 1980: average low 37.39 °F April 1981: average low 42.30 °F April 1982: average low 32.47 °F April 1983: average low 36.83 °F April 1984: average low 38.43 °F April 1986: average low 40.02 °F April 1987: average low 38.53 °F April 1988: average low 38.17 °F April 1989: average low 37.70 °F April 1990: average low 39.58 °F April 1991: average low 43.48 °F April 1992: average low 37.63 °F April 1993: average low 37.70 °F April 1994: average low 39.79 °F April 1996: average low 35.04 °F April 1997: average low 34.59 °F April 1998: average low 40.24 °F April 1999: average low 40.77 °F April 2000: average low 37.69 °F April 2001: average low 42.20 °F April 2002: average low 40.86 °F April 2004: average low 41.25 °F 1893 1959 2025
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Monthly precipitation (inches) 85 complete rain records
April: Monthly precipitation (inches), 1893–2025 Only complete calendar months are plotted. Gaps indicate missing or flagged daily observations. Exact values follow in the table. 0 4.5 9 April 1902: precipitation 3.11 in April 1903: precipitation 4.79 in April 1904: precipitation 4.67 in April 1905: precipitation 3.43 in April 1906: precipitation 2.09 in April 1915: precipitation 1.74 in April 1916: precipitation 1.84 in April 1917: precipitation 3.63 in April 1918: precipitation 3.61 in April 1919: precipitation 3.19 in April 1920: precipitation 6.90 in April 1921: precipitation 4.72 in April 1922: precipitation 3.84 in April 1923: precipitation 1.22 in April 1924: precipitation 2.73 in April 1925: precipitation 2.64 in April 1926: precipitation 2.94 in April 1927: precipitation 7.09 in April 1928: precipitation 2.64 in April 1929: precipitation 6.48 in April 1930: precipitation 3.08 in April 1931: precipitation 2.52 in April 1932: precipitation 2.02 in April 1933: precipitation 6.36 in April 1934: precipitation 2.23 in April 1935: precipitation 2.28 in April 1936: precipitation 2.95 in April 1937: precipitation 5.39 in April 1938: precipitation 2.45 in April 1939: precipitation 4.80 in April 1940: precipitation 4.32 in April 1941: precipitation 3.37 in April 1942: precipitation 2.65 in April 1943: precipitation 5.07 in April 1944: precipitation 4.97 in April 1945: precipitation 4.04 in April 1946: precipitation 1.84 in April 1947: precipitation 7.88 in April 1948: precipitation 2.10 in April 1949: precipitation 2.31 in April 1950: precipitation 6.06 in April 1951: precipitation 3.96 in April 1952: precipitation 4.46 in April 1953: precipitation 3.06 in April 1954: precipitation 5.55 in April 1955: precipitation 3.34 in April 1956: precipitation 6.65 in April 1957: precipitation 7.78 in April 1958: precipitation 2.11 in April 1959: precipitation 5.65 in April 1960: precipitation 3.37 in April 1961: precipitation 5.83 in April 1962: precipitation 2.13 in April 1963: precipitation 2.85 in April 1964: precipitation 5.45 in April 1965: precipitation 4.79 in April 1966: precipitation 6.17 in April 1967: precipitation 6.29 in April 1968: precipitation 3.63 in April 1969: precipitation 4.81 in April 1970: precipitation 5.77 in April 1971: precipitation 0.51 in April 1972: precipitation 3.78 in April 1973: precipitation 5.84 in April 1974: precipitation 4.00 in April 1975: precipitation 5.64 in April 1976: precipitation 4.16 in April 1977: precipitation 1.62 in April 1978: precipitation 4.43 in April 1979: precipitation 3.91 in April 1980: precipitation 2.26 in April 1981: precipitation 8.08 in April 1983: precipitation 6.81 in April 1985: precipitation 2.21 in April 1986: precipitation 2.03 in April 1989: precipitation 1.79 in April 1990: precipitation 2.39 in April 1991: precipitation 4.57 in April 1992: precipitation 1.46 in April 1993: precipitation 4.30 in April 1994: precipitation 2.75 in April 1995: precipitation 5.02 in April 1996: precipitation 3.46 in April 1998: precipitation 4.53 in April 1999: precipitation 6.29 in 1893 1959 2025
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Valparaiso Water Works, IN station observations, not a park-wide average or forecast. Complete quality-screened calendar months only, separately by metric. Daily high/low means and total precipitation; incomplete months stay null. No interpolation or substitution. Completed years only; separate from 1991-2020 normals.
April in-park stays Close × Dunewood, Central Avenue walk-in camping and the separate Dunbar group site; Indiana Dunes State Park is outside this inventory. Normal seasons are planning guidance, not vacancies. Opening/closing months are partial. Unverified means confirm directly. These are normal seasonal schedules, not room or campsite availability.
Backcountry trips, permits and specialist travel need separate planning and are outside the frontcountry comparison.
May→
Moderate 57% of July · 292K avg
Moderate 57% of July · 292K avg
Good 71°F / 49°F (22°C / 10°C)
Good 71°F / 49°F (22°C / 10°C)
Warm spring days and broader seasonal camping choice. Read the May guide →
May crowds Close × 291,748 average May visits in 2021–2025.
Monthly recreation visits 47 annual records · 1979–2025
May recreation visits, 1979 to 2025 NPS park-wide recreation visits for May in each year. The vertical scale starts at zero. Exact counts follow in the data table. Missing counts are gaps. 0 200k 400k 1979: 26,609 visits 1980: 144,951 visits 1981: 113,083 visits 1982: 122,343 visits 1983: 138,065 visits 1984: 157,202 visits 1985: 252,268 visits 1986: 170,099 visits 1987: 151,775 visits 1988: 240,207 visits 1989: 166,234 visits 1990: 175,490 visits 1991: 228,868 visits 1992: 210,338 visits 1993: 185,149 visits 1994: 201,006 visits 1995: 173,537 visits 1996: 127,243 visits 1997: 136,976 visits 1998: 219,159 visits 1999: 235,178 visits 2000: 196,786 visits 2001: 148,536 visits 2002: 152,395 visits 2003: 153,938 visits 2004: 142,175 visits 2005: 164,309 visits 2006: 237,535 visits 2007: 227,415 visits 2008: 147,595 visits 2009: 207,383 visits 2010: 254,665 visits 2011: 172,397 visits 2012: 194,496 visits 2013: 144,046 visits 2014: 161,258 visits 2015: 141,525 visits 2016: 175,447 visits 2017: 149,426 visits 2018: 143,790 visits 2019: 142,403 visits 2020: 154,428 visits 2021: 396,362 visits 2022: 234,403 visits 2023: 266,439 visits 2024: 289,683 visits 2025: 271,854 visits 1979 1989 1999 2009 2019 2025
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NPS recreation visits are visits, not unique visitors or a measure of how busy an individual trail feels. Counts can reflect closures, disruptions and changes in counting methods.
May weather Close × 1991 through 2020 averages Monthly precipitation 4.59 in / 117 mm Valparaiso Water Works at about 800 ft is an inland proxy south of the park, not a beach station. Lake breezes, waves and lake-effect snow can make shoreline conditions different. Air temperatures do not establish swimming conditions.
May weather through the years at Valparaiso Water Works, IN.
Average daily high and low (°F) 88 complete high-temperature records · 90 complete low-temperature records
■ High ■ Low
May: Average daily high and low (°F), 1893–2025 Only complete calendar months are plotted. Gaps indicate missing or flagged daily observations. Exact values follow in the table. 0 45 90 May 1893: average high 66.92 °F May 1894: average high 67.45 °F May 1895: average high 73.20 °F May 1896: average high 78.24 °F May 1897: average high 70.02 °F May 1900: average high 75.30 °F May 1904: average high 71.94 °F May 1905: average high 72.39 °F May 1915: average high 64.13 °F May 1916: average high 69.97 °F May 1917: average high 59.30 °F May 1918: average high 75.40 °F May 1919: average high 66.19 °F May 1920: average high 67.27 °F May 1921: average high 72.58 °F May 1922: average high 75.25 °F May 1923: average high 68.40 °F May 1925: average high 64.84 °F May 1926: average high 72.99 °F May 1927: average high 66.86 °F May 1928: average high 70.98 °F May 1929: average high 67.19 °F May 1930: average high 71.41 °F May 1931: average high 66.95 °F May 1932: average high 71.80 °F May 1933: average high 70.64 °F May 1934: average high 78.54 °F May 1935: average high 61.58 °F May 1936: average high 73.31 °F May 1937: average high 69.72 °F May 1938: average high 69.06 °F May 1939: average high 74.58 °F May 1940: average high 65.57 °F May 1941: average high 73.35 °F May 1942: average high 71.21 °F May 1943: average high 65.75 °F May 1944: average high 74.29 °F May 1945: average high 62.94 °F May 1946: average high 66.51 °F May 1947: average high 63.83 °F May 1948: average high 64.66 °F May 1949: average high 71.05 °F May 1950: average high 71.76 °F May 1952: average high 67.08 °F May 1953: average high 72.60 °F May 1954: average high 67.48 °F May 1955: average high 75.16 °F May 1956: average high 71.88 °F May 1957: average high 69.92 °F May 1958: average high 73.67 °F May 1959: average high 76.26 °F May 1960: average high 67.97 °F May 1961: average high 67.04 °F May 1962: average high 77.69 °F May 1963: average high 69.44 °F May 1964: average high 77.42 °F May 1965: average high 77.30 °F May 1966: average high 66.37 °F May 1967: average high 66.39 °F May 1968: average high 67.87 °F May 1970: average high 74.82 °F May 1971: average high 69.79 °F May 1972: average high 72.80 °F May 1973: average high 64.99 °F May 1974: average high 67.42 °F May 1975: average high 74.01 °F May 1976: average high 67.62 °F May 1977: average high 80.39 °F May 1979: average high 72.83 °F May 1980: average high 72.94 °F May 1981: average high 67.40 °F May 1982: average high 77.66 °F May 1985: average high 75.15 °F May 1986: average high 70.99 °F May 1988: average high 74.97 °F May 1989: average high 67.54 °F May 1990: average high 67.18 °F May 1992: average high 70.10 °F May 1993: average high 71.90 °F May 1994: average high 69.43 °F May 1995: average high 69.45 °F May 1996: average high 66.12 °F May 1997: average high 65.79 °F May 1998: average high 76.41 °F May 1999: average high 75.04 °F May 2000: average high 72.96 °F May 2002: average high 67.23 °F May 2004: average high 73.13 °F May 1893: average low 39.96 °F May 1894: average low 47.23 °F May 1895: average low 49.15 °F May 1896: average low 55.07 °F May 1897: average low 43.93 °F May 1900: average low 48.27 °F May 1902: average low 51.21 °F May 1903: average low 50.96 °F May 1904: average low 48.26 °F May 1915: average low 44.59 °F May 1916: average low 49.13 °F May 1917: average low 40.48 °F May 1918: average low 51.71 °F May 1919: average low 45.87 °F May 1920: average low 44.90 °F May 1921: average low 50.05 °F May 1923: average low 44.45 °F May 1925: average low 41.41 °F May 1926: average low 45.97 °F May 1927: average low 46.94 °F May 1928: average low 46.72 °F May 1929: average low 46.35 °F May 1931: average low 44.02 °F May 1932: average low 48.25 °F May 1933: average low 52.03 °F May 1934: average low 50.22 °F May 1935: average low 43.30 °F May 1936: average low 51.46 °F May 1937: average low 47.72 °F May 1938: average low 48.76 °F May 1939: average low 49.11 °F May 1940: average low 45.52 °F May 1941: average low 50.73 °F May 1942: average low 50.87 °F May 1943: average low 47.25 °F May 1944: average low 53.64 °F May 1945: average low 43.35 °F May 1946: average low 45.33 °F May 1948: average low 43.69 °F May 1949: average low 47.13 °F May 1950: average low 47.13 °F May 1951: average low 47.20 °F May 1952: average low 47.45 °F May 1953: average low 47.82 °F May 1954: average low 43.49 °F May 1955: average low 49.00 °F May 1956: average low 48.43 °F May 1957: average low 47.78 °F May 1958: average low 45.95 °F May 1959: average low 52.26 °F May 1960: average low 47.51 °F May 1961: average low 43.75 °F May 1962: average low 54.37 °F May 1963: average low 44.81 °F May 1964: average low 51.97 °F May 1965: average low 52.78 °F May 1966: average low 43.03 °F May 1967: average low 44.02 °F May 1968: average low 45.53 °F May 1969: average low 46.93 °F May 1970: average low 52.06 °F May 1971: average low 44.08 °F May 1972: average low 48.86 °F May 1973: average low 46.02 °F May 1974: average low 47.09 °F May 1975: average low 51.50 °F May 1976: average low 45.27 °F May 1977: average low 54.12 °F May 1978: average low 47.33 °F May 1980: average low 49.14 °F May 1981: average low 45.07 °F May 1982: average low 54.28 °F May 1983: average low 45.11 °F May 1986: average low 50.23 °F May 1987: average low 53.22 °F May 1988: average low 49.26 °F May 1989: average low 46.77 °F May 1990: average low 46.86 °F May 1991: average low 56.27 °F May 1992: average low 46.00 °F May 1993: average low 49.26 °F May 1994: average low 44.68 °F May 1995: average low 47.96 °F May 1996: average low 47.03 °F May 1997: average low 43.16 °F May 1998: average low 53.54 °F May 1999: average low 50.87 °F May 2000: average low 53.00 °F May 2002: average low 44.98 °F May 2003: average low 46.77 °F 1893 1959 2025
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Monthly precipitation (inches) 88 complete rain records
May: Monthly precipitation (inches), 1893–2025 Only complete calendar months are plotted. Gaps indicate missing or flagged daily observations. Exact values follow in the table. 0 4.5 9 May 1902: precipitation 7.82 in May 1903: precipitation 2.43 in May 1904: precipitation 4.44 in May 1905: precipitation 7.39 in May 1915: precipitation 7.52 in May 1916: precipitation 3.71 in May 1917: precipitation 2.10 in May 1918: precipitation 4.86 in May 1919: precipitation 4.65 in May 1920: precipitation 2.68 in May 1921: precipitation 1.19 in May 1922: precipitation 2.68 in May 1923: precipitation 6.02 in May 1924: precipitation 3.39 in May 1925: precipitation 1.91 in May 1926: precipitation 4.35 in May 1927: precipitation 4.74 in May 1928: precipitation 2.04 in May 1929: precipitation 4.28 in May 1930: precipitation 2.27 in May 1931: precipitation 4.84 in May 1932: precipitation 1.97 in May 1933: precipitation 4.91 in May 1934: precipitation 0.61 in May 1935: precipitation 8.44 in May 1936: precipitation 2.02 in May 1937: precipitation 2.28 in May 1938: precipitation 7.19 in May 1939: precipitation 2.64 in May 1940: precipitation 6.17 in May 1941: precipitation 3.87 in May 1942: precipitation 3.15 in May 1943: precipitation 8.20 in May 1944: precipitation 3.51 in May 1945: precipitation 6.89 in May 1946: precipitation 3.05 in May 1947: precipitation 4.70 in May 1948: precipitation 7.03 in May 1949: precipitation 3.81 in May 1950: precipitation 1.34 in May 1951: precipitation 5.92 in May 1952: precipitation 3.84 in May 1953: precipitation 4.66 in May 1954: precipitation 2.19 in May 1955: precipitation 2.73 in May 1956: precipitation 5.23 in May 1957: precipitation 3.73 in May 1958: precipitation 1.45 in May 1959: precipitation 5.51 in May 1960: precipitation 2.40 in May 1961: precipitation 1.74 in May 1962: precipitation 2.75 in May 1963: precipitation 3.09 in May 1964: precipitation 2.53 in May 1965: precipitation 2.74 in May 1966: precipitation 5.64 in May 1967: precipitation 1.83 in May 1968: precipitation 2.98 in May 1969: precipitation 3.58 in May 1970: precipitation 5.86 in May 1971: precipitation 2.82 in May 1972: precipitation 3.42 in May 1973: precipitation 5.80 in May 1974: precipitation 5.55 in May 1975: precipitation 4.34 in May 1976: precipitation 4.76 in May 1977: precipitation 1.27 in May 1978: precipitation 5.43 in May 1979: precipitation 2.08 in May 1980: precipitation 2.43 in May 1981: precipitation 5.76 in May 1982: precipitation 3.46 in May 1983: precipitation 5.19 in May 1985: precipitation 2.30 in May 1986: precipitation 3.02 in May 1989: precipitation 4.19 in May 1990: precipitation 7.31 in May 1991: precipitation 7.51 in May 1992: precipitation 0.62 in May 1993: precipitation 2.35 in May 1994: precipitation 1.04 in May 1995: precipitation 3.70 in May 1996: precipitation 5.60 in May 1997: precipitation 4.42 in May 1998: precipitation 2.54 in May 1999: precipitation 1.45 in May 2003: precipitation 6.73 in May 2004: precipitation 6.87 in 1893 1959 2025
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Valparaiso Water Works, IN station observations, not a park-wide average or forecast. Complete quality-screened calendar months only, separately by metric. Daily high/low means and total precipitation; incomplete months stay null. No interpolation or substitution. Completed years only; separate from 1991-2020 normals.
June→
Peak 86% of July · 438K avg
Peak 86% of July · 438K avg
Good 80°F / 59°F (27°C / 15°C)
Good 80°F / 59°F (27°C / 15°C)
Summer weather for beach and dune walks. Check water conditions separately. Read the June guide →
June crowds Close × 438,267 average June visits in 2021–2025.
Monthly recreation visits 47 annual records · 1979–2025
June recreation visits, 1979 to 2025 NPS park-wide recreation visits for June in each year. The vertical scale starts at zero. Exact counts follow in the data table. Missing counts are gaps. 0 300k 600k 1979: 263,508 visits 1980: 264,476 visits 1981: 184,853 visits 1982: 159,700 visits 1983: 297,513 visits 1984: 266,251 visits 1985: 272,462 visits 1986: 223,525 visits 1987: 252,000 visits 1988: 276,841 visits 1989: 248,515 visits 1990: 276,779 visits 1991: 300,347 visits 1992: 263,343 visits 1993: 247,340 visits 1994: 258,412 visits 1995: 273,035 visits 1996: 225,302 visits 1997: 237,642 visits 1998: 276,936 visits 1999: 241,590 visits 2000: 268,247 visits 2001: 308,612 visits 2002: 320,537 visits 2003: 263,749 visits 2004: 235,216 visits 2005: 303,310 visits 2006: 222,296 visits 2007: 266,917 visits 2008: 230,591 visits 2009: 293,039 visits 2010: 305,983 visits 2011: 269,168 visits 2012: 270,881 visits 2013: 219,493 visits 2014: 215,070 visits 2015: 174,125 visits 2016: 242,632 visits 2017: 247,641 visits 2018: 240,295 visits 2019: 302,203 visits 2020: 341,505 visits 2021: 319,611 visits 2022: 438,727 visits 2023: 550,235 visits 2024: 456,916 visits 2025: 425,848 visits 1979 1989 1999 2009 2019 2025
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NPS recreation visits are visits, not unique visitors or a measure of how busy an individual trail feels. Counts can reflect closures, disruptions and changes in counting methods.
June weather Close × 1991 through 2020 averages Monthly precipitation 4.33 in / 110 mm Valparaiso Water Works at about 800 ft is an inland proxy south of the park, not a beach station. Lake breezes, waves and lake-effect snow can make shoreline conditions different. Air temperatures do not establish swimming conditions.
June weather through the years at Valparaiso Water Works, IN.
Average daily high and low (°F) 89 complete high-temperature records · 93 complete low-temperature records
■ High ■ Low
June: Average daily high and low (°F), 1893–2025 Only complete calendar months are plotted. Gaps indicate missing or flagged daily observations. Exact values follow in the table. 0 45 90 June 1895: average high 84.51 °F June 1896: average high 79.87 °F June 1897: average high 79.46 °F June 1898: average high 83.01 °F June 1900: average high 79.29 °F June 1901: average high 83.42 °F June 1904: average high 82.24 °F June 1905: average high 82.29 °F June 1915: average high 74.09 °F June 1916: average high 71.71 °F June 1917: average high 74.40 °F June 1918: average high 79.20 °F June 1919: average high 83.52 °F June 1920: average high 79.77 °F June 1921: average high 84.54 °F June 1922: average high 81.93 °F June 1923: average high 81.73 °F June 1924: average high 76.12 °F June 1925: average high 83.55 °F June 1926: average high 75.07 °F June 1927: average high 74.85 °F June 1928: average high 74.34 °F June 1929: average high 76.50 °F June 1930: average high 80.55 °F June 1931: average high 82.71 °F June 1932: average high 81.82 °F June 1933: average high 88.21 °F June 1934: average high 85.86 °F June 1935: average high 74.55 °F June 1936: average high 76.30 °F June 1937: average high 75.90 °F June 1938: average high 76.39 °F June 1939: average high 81.25 °F June 1940: average high 79.99 °F June 1941: average high 79.96 °F June 1942: average high 79.66 °F June 1943: average high 81.87 °F June 1944: average high 82.36 °F June 1945: average high 75.23 °F June 1946: average high 77.80 °F June 1947: average high 76.03 °F June 1948: average high 77.71 °F June 1949: average high 81.88 °F June 1950: average high 77.53 °F June 1951: average high 75.77 °F June 1952: average high 83.22 °F June 1954: average high 83.36 °F June 1955: average high 76.75 °F June 1956: average high 83.36 °F June 1957: average high 78.88 °F June 1958: average high 74.13 °F June 1959: average high 82.72 °F June 1960: average high 76.45 °F June 1961: average high 79.69 °F June 1962: average high 81.54 °F June 1963: average high 82.90 °F June 1964: average high 82.97 °F June 1965: average high 79.90 °F June 1966: average high 82.11 °F June 1967: average high 81.37 °F June 1968: average high 82.86 °F June 1969: average high 77.22 °F June 1970: average high 79.13 °F June 1971: average high 85.20 °F June 1972: average high 76.51 °F June 1973: average high 80.94 °F June 1974: average high 76.50 °F June 1975: average high 79.98 °F June 1976: average high 80.50 °F June 1977: average high 78.40 °F June 1978: average high 82.36 °F June 1979: average high 81.18 °F June 1980: average high 78.33 °F June 1985: average high 77.02 °F June 1987: average high 83.41 °F June 1988: average high 86.01 °F June 1989: average high 78.18 °F June 1990: average high 80.83 °F June 1991: average high 83.48 °F June 1992: average high 76.86 °F June 1993: average high 77.43 °F June 1994: average high 80.50 °F June 1996: average high 78.60 °F June 1997: average high 78.87 °F June 1998: average high 78.87 °F June 1999: average high 81.07 °F June 2000: average high 77.91 °F June 2001: average high 77.31 °F June 2004: average high 77.21 °F June 1893: average low 55.62 °F June 1895: average low 59.15 °F June 1896: average low 59.30 °F June 1897: average low 52.84 °F June 1898: average low 61.59 °F June 1900: average low 62.01 °F June 1901: average low 61.30 °F June 1903: average low 52.97 °F June 1904: average low 56.47 °F June 1905: average low 56.79 °F June 1915: average low 53.45 °F June 1916: average low 53.30 °F June 1917: average low 51.78 °F June 1918: average low 54.83 °F June 1919: average low 62.19 °F June 1920: average low 57.97 °F June 1921: average low 61.55 °F June 1922: average low 58.25 °F June 1923: average low 59.46 °F June 1924: average low 55.20 °F June 1925: average low 58.77 °F June 1926: average low 53.26 °F June 1927: average low 53.41 °F June 1928: average low 52.27 °F June 1929: average low 54.70 °F June 1930: average low 56.56 °F June 1931: average low 61.07 °F June 1932: average low 59.10 °F June 1933: average low 63.36 °F June 1934: average low 59.26 °F June 1935: average low 55.71 °F June 1936: average low 52.92 °F June 1937: average low 56.77 °F June 1938: average low 57.76 °F June 1939: average low 60.98 °F June 1940: average low 58.50 °F June 1941: average low 59.31 °F June 1942: average low 59.49 °F June 1944: average low 61.71 °F June 1945: average low 54.57 °F June 1946: average low 56.70 °F June 1947: average low 55.41 °F June 1948: average low 57.24 °F June 1949: average low 60.35 °F June 1950: average low 57.20 °F June 1951: average low 54.50 °F June 1952: average low 61.78 °F June 1954: average low 61.32 °F June 1955: average low 54.45 °F June 1956: average low 60.03 °F June 1957: average low 58.38 °F June 1958: average low 51.94 °F June 1959: average low 58.42 °F June 1960: average low 55.69 °F June 1961: average low 55.23 °F June 1962: average low 57.20 °F June 1963: average low 56.09 °F June 1964: average low 58.43 °F June 1965: average low 56.01 °F June 1966: average low 57.73 °F June 1967: average low 59.87 °F June 1968: average low 57.88 °F June 1969: average low 54.26 °F June 1970: average low 57.89 °F June 1971: average low 60.60 °F June 1972: average low 52.90 °F June 1973: average low 60.87 °F June 1974: average low 55.70 °F June 1975: average low 60.85 °F June 1976: average low 58.37 °F June 1977: average low 55.72 °F June 1978: average low 56.97 °F June 1979: average low 57.06 °F June 1980: average low 54.07 °F June 1981: average low 60.57 °F June 1982: average low 53.36 °F June 1983: average low 58.85 °F June 1984: average low 61.21 °F June 1985: average low 55.48 °F June 1988: average low 58.63 °F June 1989: average low 58.30 °F June 1990: average low 59.11 °F June 1991: average low 62.17 °F June 1992: average low 52.79 °F June 1993: average low 58.05 °F June 1994: average low 57.78 °F June 1995: average low 59.73 °F June 1996: average low 58.65 °F June 1997: average low 58.17 °F June 1998: average low 58.86 °F June 1999: average low 60.23 °F June 2000: average low 58.60 °F June 2001: average low 57.49 °F 1893 1959 2025
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Monthly precipitation (inches) 86 complete rain records
June: Monthly precipitation (inches), 1893–2025 Only complete calendar months are plotted. Gaps indicate missing or flagged daily observations. Exact values follow in the table. 0 6.5 13 June 1901: precipitation 2.42 in June 1902: precipitation 7.78 in June 1903: precipitation 1.32 in June 1904: precipitation 1.71 in June 1905: precipitation 6.73 in June 1915: precipitation 2.80 in June 1916: precipitation 7.06 in June 1917: precipitation 3.08 in June 1918: precipitation 3.69 in June 1919: precipitation 3.67 in June 1920: precipitation 4.99 in June 1921: precipitation 1.19 in June 1922: precipitation 0.63 in June 1923: precipitation 3.28 in June 1924: precipitation 8.99 in June 1925: precipitation 1.77 in June 1926: precipitation 4.54 in June 1927: precipitation 3.36 in June 1928: precipitation 3.28 in June 1929: precipitation 4.65 in June 1930: precipitation 2.78 in June 1931: precipitation 4.63 in June 1932: precipitation 4.80 in June 1933: precipitation 2.64 in June 1934: precipitation 1.89 in June 1935: precipitation 5.41 in June 1936: precipitation 0.91 in June 1937: precipitation 4.55 in June 1938: precipitation 5.64 in June 1939: precipitation 6.57 in June 1940: precipitation 4.32 in June 1941: precipitation 7.86 in June 1942: precipitation 4.08 in June 1943: precipitation 3.09 in June 1944: precipitation 3.00 in June 1945: precipitation 4.94 in June 1946: precipitation 9.63 in June 1947: precipitation 4.58 in June 1948: precipitation 2.19 in June 1949: precipitation 2.00 in June 1950: precipitation 8.27 in June 1951: precipitation 2.20 in June 1952: precipitation 5.66 in June 1953: precipitation 4.55 in June 1954: precipitation 3.62 in June 1955: precipitation 2.85 in June 1956: precipitation 1.74 in June 1957: precipitation 5.37 in June 1958: precipitation 7.14 in June 1959: precipitation 1.77 in June 1960: precipitation 4.09 in June 1961: precipitation 3.98 in June 1962: precipitation 3.12 in June 1963: precipitation 2.38 in June 1964: precipitation 3.04 in June 1965: precipitation 1.68 in June 1966: precipitation 2.07 in June 1967: precipitation 5.93 in June 1968: precipitation 7.37 in June 1969: precipitation 6.18 in June 1970: precipitation 5.87 in June 1971: precipitation 5.42 in June 1972: precipitation 3.29 in June 1973: precipitation 5.81 in June 1974: precipitation 3.87 in June 1975: precipitation 5.98 in June 1976: precipitation 3.08 in June 1977: precipitation 6.31 in June 1978: precipitation 2.52 in June 1979: precipitation 2.85 in June 1980: precipitation 2.96 in June 1981: precipitation 9.67 in June 1982: precipitation 3.66 in June 1984: precipitation 5.90 in June 1986: precipitation 4.66 in June 1989: precipitation 6.10 in June 1990: precipitation 3.88 in June 1991: precipitation 0.90 in June 1992: precipitation 2.66 in June 1993: precipitation 12.07 in June 1994: precipitation 5.81 in June 1995: precipitation 3.52 in June 1996: precipitation 6.59 in June 1998: precipitation 4.83 in June 1999: precipitation 2.70 in June 2004: precipitation 3.73 in 1893 1959 2025
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Valparaiso Water Works, IN station observations, not a park-wide average or forecast. Complete quality-screened calendar months only, separately by metric. Daily high/low means and total precipitation; incomplete months stay null. No interpolation or substitution. Completed years only; separate from 1991-2020 normals.
July→
Peak 100% of July · 510K avg
Peak 100% of July · 510K avg
Mixed 83°F / 63°F (28°C / 17°C)
Mixed 83°F / 63°F (28°C / 17°C)
Peak average visits and the warmest inland normal month. Read the July guide →
July crowds Close × 509,715 average July visits in 2021–2025.
Monthly recreation visits 47 annual records · 1979–2025
July recreation visits, 1979 to 2025 NPS park-wide recreation visits for July in each year. The vertical scale starts at zero. Exact counts follow in the data table. Missing counts are gaps. 0 300k 600k 1979: 365,579 visits 1980: 396,056 visits 1981: 225,617 visits 1982: 282,807 visits 1983: 346,380 visits 1984: 281,379 visits 1985: 275,402 visits 1986: 276,617 visits 1987: 248,556 visits 1988: 335,816 visits 1989: 298,759 visits 1990: 297,324 visits 1991: 346,631 visits 1992: 255,935 visits 1993: 321,648 visits 1994: 281,718 visits 1995: 318,305 visits 1996: 262,521 visits 1997: 279,009 visits 1998: 320,574 visits 1999: 313,677 visits 2000: 350,308 visits 2001: 342,952 visits 2002: 312,012 visits 2003: 310,564 visits 2004: 296,161 visits 2005: 358,000 visits 2006: 323,569 visits 2007: 308,973 visits 2008: 387,513 visits 2009: 392,247 visits 2010: 454,424 visits 2011: 421,285 visits 2012: 361,124 visits 2013: 357,123 visits 2014: 283,291 visits 2015: 362,197 visits 2016: 308,792 visits 2017: 319,946 visits 2018: 421,553 visits 2019: 449,968 visits 2020: 427,408 visits 2021: 594,272 visits 2022: 575,495 visits 2023: 509,785 visits 2024: 445,294 visits 2025: 423,731 visits 1979 1989 1999 2009 2019 2025
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NPS recreation visits are visits, not unique visitors or a measure of how busy an individual trail feels. Counts can reflect closures, disruptions and changes in counting methods.
July weather Close × 1991 through 2020 averages Monthly precipitation 4.10 in / 104 mm Valparaiso Water Works at about 800 ft is an inland proxy south of the park, not a beach station. Lake breezes, waves and lake-effect snow can make shoreline conditions different. Air temperatures do not establish swimming conditions.
July weather through the years at Valparaiso Water Works, IN.
Average daily high and low (°F) 92 complete high-temperature records · 93 complete low-temperature records
■ High ■ Low
July: Average daily high and low (°F), 1893–2025 Only complete calendar months are plotted. Gaps indicate missing or flagged daily observations. Exact values follow in the table. 0 50 100 July 1894: average high 85.83 °F July 1895: average high 82.90 °F July 1896: average high 83.83 °F July 1898: average high 84.44 °F July 1899: average high 83.62 °F July 1900: average high 83.55 °F July 1901: average high 92.67 °F July 1903: average high 83.11 °F July 1904: average high 83.14 °F July 1905: average high 83.53 °F July 1915: average high 77.80 °F July 1916: average high 90.19 °F July 1917: average high 81.09 °F July 1918: average high 80.00 °F July 1919: average high 87.34 °F July 1920: average high 81.47 °F July 1921: average high 90.63 °F July 1922: average high 82.21 °F July 1923: average high 85.21 °F July 1924: average high 80.57 °F July 1925: average high 83.28 °F July 1926: average high 83.32 °F July 1927: average high 82.27 °F July 1928: average high 82.65 °F July 1929: average high 84.27 °F July 1930: average high 85.92 °F July 1931: average high 87.71 °F July 1932: average high 85.62 °F July 1933: average high 87.00 °F July 1934: average high 89.93 °F July 1935: average high 83.92 °F July 1936: average high 89.40 °F July 1937: average high 84.33 °F July 1938: average high 82.91 °F July 1939: average high 82.41 °F July 1940: average high 85.09 °F July 1941: average high 84.05 °F July 1942: average high 83.74 °F July 1943: average high 84.45 °F July 1944: average high 84.82 °F July 1945: average high 81.87 °F July 1946: average high 85.65 °F July 1947: average high 80.26 °F July 1948: average high 85.08 °F July 1949: average high 86.41 °F July 1950: average high 80.44 °F July 1951: average high 80.63 °F July 1952: average high 85.22 °F July 1953: average high 84.64 °F July 1954: average high 84.28 °F July 1955: average high 88.91 °F July 1956: average high 82.46 °F July 1957: average high 84.68 °F July 1958: average high 80.44 °F July 1959: average high 83.24 °F July 1960: average high 82.23 °F July 1961: average high 82.27 °F July 1962: average high 79.61 °F July 1963: average high 83.56 °F July 1964: average high 84.04 °F July 1965: average high 82.09 °F July 1966: average high 87.93 °F July 1967: average high 80.58 °F July 1968: average high 82.79 °F July 1969: average high 83.51 °F July 1970: average high 83.72 °F July 1971: average high 80.24 °F July 1972: average high 81.51 °F July 1973: average high 83.60 °F July 1974: average high 85.43 °F July 1975: average high 82.86 °F July 1976: average high 83.28 °F July 1978: average high 82.20 °F July 1979: average high 82.38 °F July 1980: average high 86.16 °F July 1981: average high 81.07 °F July 1982: average high 83.61 °F July 1983: average high 87.66 °F July 1987: average high 83.85 °F July 1988: average high 88.00 °F July 1989: average high 82.67 °F July 1990: average high 81.77 °F July 1991: average high 85.91 °F July 1992: average high 77.69 °F July 1993: average high 81.51 °F July 1994: average high 80.33 °F July 1995: average high 84.80 °F July 1996: average high 80.70 °F July 1997: average high 83.06 °F July 1999: average high 87.32 °F July 2000: average high 79.55 °F July 2002: average high 86.03 °F July 1893: average low 62.16 °F July 1894: average low 53.81 °F July 1895: average low 60.32 °F July 1896: average low 63.03 °F July 1898: average low 62.01 °F July 1899: average low 60.76 °F July 1900: average low 61.92 °F July 1901: average low 66.79 °F July 1904: average low 60.43 °F July 1905: average low 62.02 °F July 1915: average low 59.30 °F July 1916: average low 64.43 °F July 1917: average low 59.70 °F July 1918: average low 58.74 °F July 1919: average low 61.48 °F July 1920: average low 57.42 °F July 1921: average low 66.05 °F July 1922: average low 61.08 °F July 1923: average low 61.11 °F July 1924: average low 58.94 °F July 1926: average low 61.00 °F July 1927: average low 60.43 °F July 1928: average low 62.14 °F July 1929: average low 61.26 °F July 1930: average low 61.70 °F July 1931: average low 63.98 °F July 1932: average low 61.94 °F July 1934: average low 64.16 °F July 1935: average low 65.84 °F July 1936: average low 64.36 °F July 1937: average low 62.55 °F July 1938: average low 63.40 °F July 1939: average low 62.77 °F July 1940: average low 62.47 °F July 1941: average low 61.87 °F July 1942: average low 63.90 °F July 1943: average low 62.50 °F July 1944: average low 60.93 °F July 1945: average low 59.81 °F July 1946: average low 61.67 °F July 1947: average low 59.57 °F July 1948: average low 63.58 °F July 1949: average low 66.09 °F July 1950: average low 58.65 °F July 1951: average low 59.12 °F July 1952: average low 63.87 °F July 1953: average low 60.11 °F July 1954: average low 61.44 °F July 1955: average low 65.13 °F July 1956: average low 61.10 °F July 1957: average low 61.24 °F July 1958: average low 61.10 °F July 1959: average low 59.98 °F July 1960: average low 59.81 °F July 1961: average low 61.64 °F July 1962: average low 60.17 °F July 1963: average low 61.36 °F July 1964: average low 62.18 °F July 1965: average low 59.66 °F July 1966: average low 63.11 °F July 1967: average low 58.66 °F July 1968: average low 61.42 °F July 1970: average low 62.65 °F July 1971: average low 59.62 °F July 1972: average low 61.04 °F July 1973: average low 63.83 °F July 1974: average low 62.92 °F July 1975: average low 61.00 °F July 1976: average low 62.28 °F July 1977: average low 64.77 °F July 1978: average low 60.39 °F July 1979: average low 58.77 °F July 1980: average low 64.35 °F July 1981: average low 62.18 °F July 1982: average low 63.11 °F July 1983: average low 66.43 °F July 1984: average low 61.04 °F July 1985: average low 60.71 °F July 1986: average low 65.47 °F July 1987: average low 65.76 °F July 1988: average low 62.92 °F July 1989: average low 63.55 °F July 1990: average low 62.18 °F July 1991: average low 64.26 °F July 1992: average low 60.58 °F July 1993: average low 65.65 °F July 1994: average low 61.86 °F July 1995: average low 65.63 °F July 1996: average low 58.83 °F July 1997: average low 62.45 °F July 1999: average low 67.48 °F July 2000: average low 61.19 °F July 2004: average low 61.22 °F 1893 1959 2025
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Monthly precipitation (inches) 88 complete rain records
July: Monthly precipitation (inches), 1893–2025 Only complete calendar months are plotted. Gaps indicate missing or flagged daily observations. Exact values follow in the table. 0 6 12 July 1901: precipitation 1.49 in July 1902: precipitation 5.52 in July 1903: precipitation 8.46 in July 1904: precipitation 1.86 in July 1905: precipitation 4.85 in July 1915: precipitation 6.80 in July 1916: precipitation 0.19 in July 1917: precipitation 3.37 in July 1918: precipitation 2.36 in July 1919: precipitation 1.90 in July 1920: precipitation 2.72 in July 1921: precipitation 1.14 in July 1922: precipitation 2.84 in July 1923: precipitation 1.73 in July 1924: precipitation 2.09 in July 1925: precipitation 4.49 in July 1926: precipitation 4.81 in July 1927: precipitation 5.21 in July 1928: precipitation 4.57 in July 1929: precipitation 2.43 in July 1930: precipitation 2.38 in July 1931: precipitation 1.19 in July 1932: precipitation 5.63 in July 1933: precipitation 2.72 in July 1934: precipitation 0.42 in July 1935: precipitation 1.35 in July 1936: precipitation 0.24 in July 1937: precipitation 3.67 in July 1938: precipitation 6.46 in July 1939: precipitation 4.20 in July 1940: precipitation 1.83 in July 1941: precipitation 2.34 in July 1942: precipitation 3.03 in July 1943: precipitation 4.58 in July 1944: precipitation 1.11 in July 1945: precipitation 4.23 in July 1946: precipitation 0.48 in July 1947: precipitation 1.56 in July 1948: precipitation 1.56 in July 1949: precipitation 3.10 in July 1950: precipitation 4.84 in July 1951: precipitation 4.81 in July 1952: precipitation 2.17 in July 1953: precipitation 2.56 in July 1954: precipitation 5.89 in July 1955: precipitation 2.43 in July 1956: precipitation 4.52 in July 1957: precipitation 4.61 in July 1958: precipitation 5.04 in July 1959: precipitation 8.33 in July 1960: precipitation 2.75 in July 1961: precipitation 5.92 in July 1962: precipitation 3.20 in July 1963: precipitation 8.02 in July 1964: precipitation 3.25 in July 1965: precipitation 2.92 in July 1966: precipitation 3.05 in July 1967: precipitation 3.05 in July 1968: precipitation 5.21 in July 1969: precipitation 4.69 in July 1970: precipitation 5.79 in July 1971: precipitation 7.06 in July 1972: precipitation 4.39 in July 1973: precipitation 2.50 in July 1974: precipitation 2.86 in July 1975: precipitation 1.76 in July 1976: precipitation 3.41 in July 1977: precipitation 1.02 in July 1978: precipitation 2.97 in July 1979: precipitation 2.15 in July 1980: precipitation 2.29 in July 1981: precipitation 4.89 in July 1982: precipitation 4.25 in July 1983: precipitation 11.33 in July 1984: precipitation 4.06 in July 1985: precipitation 3.18 in July 1986: precipitation 4.40 in July 1990: precipitation 4.49 in July 1991: precipitation 3.24 in July 1992: precipitation 5.82 in July 1993: precipitation 3.00 in July 1994: precipitation 4.14 in July 1995: precipitation 2.92 in July 1996: precipitation 8.57 in July 1997: precipitation 2.89 in July 1998: precipitation 3.66 in July 1999: precipitation 3.21 in July 2004: precipitation 4.63 in 1893 1959 2025
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Valparaiso Water Works, IN station observations, not a park-wide average or forecast. Complete quality-screened calendar months only, separately by metric. Daily high/low means and total precipitation; incomplete months stay null. No interpolation or substitution. Completed years only; separate from 1991-2020 normals.
August→
Peak 83% of July · 424K avg
Peak 83% of July · 424K avg
Good 81°F / 62°F (27°C / 17°C)
Good 81°F / 62°F (27°C / 17°C)
Warm summer weather with lower average visits than July. Read the August guide →
August crowds Close × 423,561 average August visits in 2021–2025.
Monthly recreation visits 47 annual records · 1979–2025
August recreation visits, 1979 to 2025 NPS park-wide recreation visits for August in each year. The vertical scale starts at zero. Exact counts follow in the data table. Missing counts are gaps. 0 250k 500k 1979: 315,219 visits 1980: 238,587 visits 1981: 176,637 visits 1982: 216,637 visits 1983: 288,396 visits 1984: 369,824 visits 1985: 204,361 visits 1986: 260,488 visits 1987: 236,969 visits 1988: 271,779 visits 1989: 259,932 visits 1990: 260,020 visits 1991: 269,758 visits 1992: 296,624 visits 1993: 271,654 visits 1994: 217,409 visits 1995: 255,754 visits 1996: 265,620 visits 1997: 193,447 visits 1998: 464,760 visits 1999: 241,890 visits 2000: 258,377 visits 2001: 244,250 visits 2002: 314,204 visits 2003: 307,753 visits 2004: 254,818 visits 2005: 271,500 visits 2006: 212,657 visits 2007: 220,205 visits 2008: 305,361 visits 2009: 344,229 visits 2010: 370,482 visits 2011: 287,267 visits 2012: 260,821 visits 2013: 304,087 visits 2014: 255,908 visits 2015: 262,479 visits 2016: 219,929 visits 2017: 462,357 visits 2018: 204,010 visits 2019: 290,469 visits 2020: 389,689 visits 2021: 437,313 visits 2022: 470,160 visits 2023: 401,694 visits 2024: 414,972 visits 2025: 393,665 visits 1979 1989 1999 2009 2019 2025
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NPS recreation visits are visits, not unique visitors or a measure of how busy an individual trail feels. Counts can reflect closures, disruptions and changes in counting methods.
August weather Close × 1991 through 2020 averages Monthly precipitation 3.57 in / 91 mm Valparaiso Water Works at about 800 ft is an inland proxy south of the park, not a beach station. Lake breezes, waves and lake-effect snow can make shoreline conditions different. Air temperatures do not establish swimming conditions.
August weather through the years at Valparaiso Water Works, IN.
Average daily high and low (°F) 91 complete high-temperature records · 97 complete low-temperature records
■ High ■ Low
August: Average daily high and low (°F), 1893–2025 Only complete calendar months are plotted. Gaps indicate missing or flagged daily observations. Exact values follow in the table. 0 50 100 August 1893: average high 82.19 °F August 1894: average high 83.50 °F August 1896: average high 82.33 °F August 1897: average high 79.81 °F August 1898: average high 81.81 °F August 1900: average high 86.80 °F August 1901: average high 84.23 °F August 1902: average high 78.28 °F August 1903: average high 79.84 °F August 1904: average high 83.21 °F August 1905: average high 84.04 °F August 1915: average high 73.88 °F August 1916: average high 85.23 °F August 1917: average high 79.52 °F August 1918: average high 86.10 °F August 1919: average high 81.90 °F August 1920: average high 80.94 °F August 1921: average high 81.13 °F August 1922: average high 84.79 °F August 1923: average high 80.49 °F August 1924: average high 80.84 °F August 1925: average high 85.21 °F August 1926: average high 82.78 °F August 1927: average high 77.57 °F August 1928: average high 83.02 °F August 1929: average high 80.37 °F August 1930: average high 83.90 °F August 1931: average high 83.99 °F August 1932: average high 83.42 °F August 1933: average high 81.16 °F August 1934: average high 81.98 °F August 1935: average high 80.20 °F August 1936: average high 85.36 °F August 1937: average high 85.49 °F August 1938: average high 84.07 °F August 1939: average high 82.59 °F August 1940: average high 82.48 °F August 1941: average high 83.49 °F August 1942: average high 80.50 °F August 1943: average high 82.14 °F August 1944: average high 84.23 °F August 1945: average high 81.06 °F August 1946: average high 80.16 °F August 1947: average high 90.17 °F August 1949: average high 82.27 °F August 1950: average high 80.00 °F August 1951: average high 76.82 °F August 1952: average high 82.19 °F August 1953: average high 84.77 °F August 1954: average high 80.54 °F August 1955: average high 86.87 °F August 1956: average high 82.78 °F August 1957: average high 81.45 °F August 1958: average high 82.32 °F August 1959: average high 85.40 °F August 1960: average high 82.59 °F August 1961: average high 81.38 °F August 1962: average high 83.83 °F August 1963: average high 78.59 °F August 1964: average high 81.61 °F August 1965: average high 78.88 °F August 1966: average high 81.02 °F August 1967: average high 78.96 °F August 1968: average high 83.48 °F August 1969: average high 84.62 °F August 1970: average high 82.58 °F August 1972: average high 80.52 °F August 1973: average high 81.87 °F August 1974: average high 80.94 °F August 1975: average high 81.92 °F August 1976: average high 79.17 °F August 1977: average high 79.07 °F August 1980: average high 83.10 °F August 1981: average high 79.59 °F August 1986: average high 77.90 °F August 1987: average high 81.31 °F August 1988: average high 86.92 °F August 1989: average high 79.93 °F August 1990: average high 79.96 °F August 1991: average high 82.74 °F August 1992: average high 75.90 °F August 1993: average high 81.16 °F August 1994: average high 76.76 °F August 1995: average high 86.84 °F August 1996: average high 81.19 °F August 1997: average high 77.33 °F August 1998: average high 81.95 °F August 1999: average high 79.70 °F August 2000: average high 81.68 °F August 2003: average high 82.59 °F August 2004: average high 76.44 °F August 1893: average low 56.81 °F August 1894: average low 49.74 °F August 1896: average low 61.61 °F August 1897: average low 57.41 °F August 1898: average low 62.43 °F August 1899: average low 63.30 °F August 1900: average low 64.37 °F August 1901: average low 62.07 °F August 1902: average low 58.45 °F August 1905: average low 62.68 °F August 1916: average low 61.53 °F August 1917: average low 57.31 °F August 1918: average low 63.94 °F August 1919: average low 59.12 °F August 1920: average low 56.80 °F August 1921: average low 60.11 °F August 1922: average low 59.91 °F August 1923: average low 58.61 °F August 1924: average low 60.42 °F August 1925: average low 58.27 °F August 1926: average low 62.91 °F August 1927: average low 52.99 °F August 1928: average low 60.75 °F August 1929: average low 57.66 °F August 1930: average low 61.73 °F August 1931: average low 61.13 °F August 1932: average low 60.19 °F August 1933: average low 58.59 °F August 1934: average low 61.15 °F August 1935: average low 62.95 °F August 1936: average low 63.59 °F August 1937: average low 63.96 °F August 1938: average low 63.23 °F August 1939: average low 60.72 °F August 1940: average low 62.71 °F August 1941: average low 59.48 °F August 1942: average low 60.52 °F August 1943: average low 62.74 °F August 1944: average low 61.71 °F August 1945: average low 60.53 °F August 1946: average low 55.84 °F August 1947: average low 68.84 °F August 1949: average low 61.51 °F August 1950: average low 57.48 °F August 1951: average low 56.60 °F August 1952: average low 58.52 °F August 1953: average low 56.48 °F August 1954: average low 60.42 °F August 1955: average low 63.00 °F August 1956: average low 60.06 °F August 1957: average low 58.22 °F August 1958: average low 59.37 °F August 1959: average low 66.17 °F August 1960: average low 61.90 °F August 1961: average low 61.26 °F August 1962: average low 58.19 °F August 1963: average low 56.81 °F August 1964: average low 57.13 °F August 1965: average low 58.76 °F August 1966: average low 57.36 °F August 1967: average low 56.18 °F August 1968: average low 61.93 °F August 1969: average low 59.52 °F August 1970: average low 61.00 °F August 1971: average low 58.14 °F August 1972: average low 61.45 °F August 1973: average low 63.46 °F August 1974: average low 59.46 °F August 1975: average low 64.02 °F August 1976: average low 56.96 °F August 1977: average low 60.25 °F August 1978: average low 59.13 °F August 1979: average low 60.40 °F August 1980: average low 63.98 °F August 1981: average low 60.64 °F August 1982: average low 58.88 °F August 1983: average low 65.29 °F August 1984: average low 61.88 °F August 1985: average low 59.44 °F August 1986: average low 56.93 °F August 1987: average low 62.22 °F August 1988: average low 65.52 °F August 1989: average low 60.37 °F August 1990: average low 61.13 °F August 1991: average low 61.98 °F August 1992: average low 56.92 °F August 1993: average low 63.23 °F August 1994: average low 57.86 °F August 1995: average low 69.52 °F August 1996: average low 62.52 °F August 1997: average low 59.46 °F August 1998: average low 63.42 °F August 1999: average low 59.77 °F August 2000: average low 62.07 °F August 2001: average low 64.17 °F August 2003: average low 64.48 °F August 2004: average low 58.29 °F 1893 1959 2025
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Monthly precipitation (inches) 89 complete rain records
August: Monthly precipitation (inches), 1893–2025 Only complete calendar months are plotted. Gaps indicate missing or flagged daily observations. Exact values follow in the table. 0 5.5 11 August 1901: precipitation 1.06 in August 1902: precipitation 3.77 in August 1903: precipitation 3.95 in August 1904: precipitation 2.80 in August 1905: precipitation 2.95 in August 1915: precipitation 4.50 in August 1916: precipitation 2.96 in August 1917: precipitation 1.52 in August 1918: precipitation 1.59 in August 1919: precipitation 1.17 in August 1920: precipitation 1.47 in August 1921: precipitation 6.09 in August 1922: precipitation 1.20 in August 1923: precipitation 10.92 in August 1924: precipitation 4.36 in August 1925: precipitation 1.68 in August 1926: precipitation 4.67 in August 1927: precipitation 2.79 in August 1928: precipitation 4.46 in August 1929: precipitation 3.20 in August 1930: precipitation 1.34 in August 1931: precipitation 3.89 in August 1932: precipitation 5.64 in August 1933: precipitation 2.94 in August 1934: precipitation 6.87 in August 1935: precipitation 3.67 in August 1936: precipitation 6.31 in August 1937: precipitation 2.72 in August 1938: precipitation 2.86 in August 1939: precipitation 2.02 in August 1940: precipitation 4.15 in August 1941: precipitation 1.40 in August 1942: precipitation 3.00 in August 1943: precipitation 7.40 in August 1944: precipitation 2.79 in August 1945: precipitation 3.18 in August 1946: precipitation 5.00 in August 1947: precipitation 2.11 in August 1948: precipitation 1.19 in August 1949: precipitation 3.54 in August 1950: precipitation 1.50 in August 1951: precipitation 7.35 in August 1952: precipitation 1.88 in August 1953: precipitation 2.75 in August 1954: precipitation 5.86 in August 1955: precipitation 7.31 in August 1956: precipitation 2.79 in August 1957: precipitation 6.90 in August 1958: precipitation 4.45 in August 1959: precipitation 0.94 in August 1960: precipitation 4.78 in August 1961: precipitation 3.34 in August 1962: precipitation 1.90 in August 1963: precipitation 1.49 in August 1964: precipitation 2.59 in August 1965: precipitation 5.98 in August 1966: precipitation 4.00 in August 1967: precipitation 3.65 in August 1968: precipitation 3.30 in August 1969: precipitation 0.47 in August 1970: precipitation 2.16 in August 1971: precipitation 3.77 in August 1972: precipitation 4.25 in August 1973: precipitation 2.01 in August 1974: precipitation 2.25 in August 1975: precipitation 7.56 in August 1976: precipitation 2.00 in August 1977: precipitation 4.16 in August 1978: precipitation 2.55 in August 1979: precipitation 7.04 in August 1980: precipitation 10.17 in August 1981: precipitation 3.14 in August 1982: precipitation 1.41 in August 1983: precipitation 2.09 in August 1984: precipitation 1.18 in August 1985: precipitation 5.10 in August 1989: precipitation 2.29 in August 1990: precipitation 8.79 in August 1991: precipitation 3.17 in August 1992: precipitation 2.01 in August 1993: precipitation 4.69 in August 1994: precipitation 4.11 in August 1995: precipitation 3.06 in August 1996: precipitation 1.81 in August 1997: precipitation 3.87 in August 1998: precipitation 4.37 in August 1999: precipitation 2.80 in August 2002: precipitation 2.26 in August 2003: precipitation 1.94 in 1893 1959 2025
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Valparaiso Water Works, IN station observations, not a park-wide average or forecast. Complete quality-screened calendar months only, separately by metric. Daily high/low means and total precipitation; incomplete months stay null. No interpolation or substitution. Completed years only; separate from 1991-2020 normals.
September→
Moderate 53% of July · 272K avg
Moderate 53% of July · 272K avg
Ideal 75°F / 54°F (24°C / 12°C)
Ideal 75°F / 54°F (24°C / 12°C)
Limited lodging Limited lodging Our pick for warm walks and lower average visits than July. Central Avenue camping winds down. Read the September guide →
September crowds Close × 272,078 average September visits in 2021–2025.
Monthly recreation visits 47 annual records · 1979–2025
September recreation visits, 1979 to 2025 NPS park-wide recreation visits for September in each year. The vertical scale starts at zero. Exact counts follow in the data table. Missing counts are gaps. 0 225k 450k 1979: 218,532 visits 1980: 63,251 visits 1981: 146,042 visits 1982: 110,263 visits 1983: 151,424 visits 1984: 140,956 visits 1985: 187,358 visits 1986: 152,068 visits 1987: 173,321 visits 1988: 158,446 visits 1989: 172,841 visits 1990: 191,685 visits 1991: 196,667 visits 1992: 187,322 visits 1993: 151,176 visits 1994: 161,325 visits 1995: 164,791 visits 1996: 148,690 visits 1997: 140,383 visits 1998: 168,100 visits 1999: 165,847 visits 2000: 161,375 visits 2001: 174,408 visits 2002: 187,148 visits 2003: 163,019 visits 2004: 241,134 visits 2005: 176,484 visits 2006: 166,756 visits 2007: 183,060 visits 2008: 140,252 visits 2009: 178,591 visits 2010: 182,416 visits 2011: 147,977 visits 2012: 160,416 visits 2013: 190,536 visits 2014: 144,874 visits 2015: 169,403 visits 2016: 179,245 visits 2017: 405,688 visits 2018: 167,089 visits 2019: 206,226 visits 2020: 225,594 visits 2021: 343,696 visits 2022: 271,515 visits 2023: 245,308 visits 2024: 240,571 visits 2025: 259,298 visits 1979 1989 1999 2009 2019 2025
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NPS recreation visits are visits, not unique visitors or a measure of how busy an individual trail feels. Counts can reflect closures, disruptions and changes in counting methods.
September weather Close × 1991 through 2020 averages Monthly precipitation 2.92 in / 74 mm Valparaiso Water Works at about 800 ft is an inland proxy south of the park, not a beach station. Lake breezes, waves and lake-effect snow can make shoreline conditions different. Air temperatures do not establish swimming conditions.
September weather through the years at Valparaiso Water Works, IN.
Average daily high and low (°F) 91 complete high-temperature records · 95 complete low-temperature records
■ High ■ Low
September: Average daily high and low (°F), 1893–2025 Only complete calendar months are plotted. Gaps indicate missing or flagged daily observations. Exact values follow in the table. 0 45 90 September 1893: average high 76.10 °F September 1894: average high 76.36 °F September 1895: average high 79.86 °F September 1896: average high 69.46 °F September 1897: average high 84.84 °F September 1898: average high 78.39 °F September 1899: average high 78.19 °F September 1901: average high 77.25 °F September 1903: average high 77.50 °F September 1904: average high 77.17 °F September 1905: average high 79.97 °F September 1915: average high 76.38 °F September 1916: average high 74.14 °F September 1917: average high 72.99 °F September 1918: average high 68.10 °F September 1919: average high 77.45 °F September 1920: average high 78.80 °F September 1921: average high 79.29 °F September 1922: average high 81.04 °F September 1923: average high 75.15 °F September 1925: average high 79.74 °F September 1926: average high 73.58 °F September 1927: average high 79.77 °F September 1928: average high 72.73 °F September 1929: average high 74.94 °F September 1931: average high 81.84 °F September 1933: average high 79.66 °F September 1934: average high 72.78 °F September 1935: average high 74.70 °F September 1936: average high 75.30 °F September 1937: average high 75.27 °F September 1938: average high 74.08 °F September 1939: average high 82.56 °F September 1940: average high 75.63 °F September 1941: average high 79.84 °F September 1942: average high 72.88 °F September 1943: average high 71.33 °F September 1944: average high 76.14 °F September 1945: average high 72.74 °F September 1946: average high 77.36 °F September 1947: average high 76.48 °F September 1948: average high 78.22 °F September 1949: average high 69.81 °F September 1950: average high 72.33 °F September 1952: average high 76.75 °F September 1953: average high 78.33 °F September 1954: average high 78.87 °F September 1955: average high 76.72 °F September 1956: average high 77.91 °F September 1957: average high 74.35 °F September 1958: average high 75.27 °F September 1959: average high 78.78 °F September 1960: average high 79.47 °F September 1961: average high 79.80 °F September 1962: average high 74.77 °F September 1963: average high 75.83 °F September 1964: average high 76.72 °F September 1965: average high 74.41 °F September 1967: average high 74.87 °F September 1968: average high 75.15 °F September 1969: average high 75.48 °F September 1970: average high 77.22 °F September 1971: average high 77.02 °F September 1972: average high 72.76 °F September 1973: average high 76.26 °F September 1974: average high 72.09 °F September 1975: average high 69.13 °F September 1976: average high 73.41 °F September 1977: average high 73.84 °F September 1979: average high 76.51 °F September 1980: average high 75.31 °F September 1983: average high 76.45 °F September 1985: average high 75.67 °F September 1986: average high 76.80 °F September 1987: average high 74.26 °F September 1988: average high 77.14 °F September 1989: average high 71.85 °F September 1990: average high 76.33 °F September 1991: average high 74.47 °F September 1992: average high 71.86 °F September 1993: average high 67.26 °F September 1994: average high 73.80 °F September 1995: average high 76.60 °F September 1996: average high 72.00 °F September 1997: average high 74.04 °F September 1998: average high 79.29 °F September 1999: average high 77.95 °F September 2000: average high 75.70 °F September 2001: average high 72.56 °F September 2002: average high 79.80 °F September 2004: average high 76.71 °F September 1893: average low 52.03 °F September 1894: average low 46.03 °F September 1897: average low 54.25 °F September 1898: average low 53.40 °F September 1899: average low 51.72 °F September 1900: average low 56.57 °F September 1901: average low 53.24 °F September 1902: average low 52.11 °F September 1903: average low 48.79 °F September 1904: average low 55.23 °F September 1905: average low 55.56 °F September 1915: average low 56.03 °F September 1916: average low 50.20 °F September 1917: average low 49.53 °F September 1918: average low 46.06 °F September 1919: average low 55.19 °F September 1920: average low 55.17 °F September 1922: average low 54.63 °F September 1923: average low 55.16 °F September 1924: average low 49.95 °F September 1925: average low 59.38 °F September 1926: average low 56.54 °F September 1927: average low 57.64 °F September 1928: average low 47.67 °F September 1929: average low 53.12 °F September 1931: average low 59.71 °F September 1933: average low 58.42 °F September 1934: average low 56.41 °F September 1935: average low 52.24 °F September 1936: average low 57.14 °F September 1937: average low 52.47 °F September 1938: average low 56.16 °F September 1939: average low 55.36 °F September 1940: average low 51.18 °F September 1941: average low 56.17 °F September 1942: average low 51.54 °F September 1943: average low 50.05 °F September 1944: average low 54.67 °F September 1945: average low 54.90 °F September 1946: average low 51.81 °F September 1947: average low 54.93 °F September 1948: average low 56.00 °F September 1949: average low 48.01 °F September 1950: average low 53.17 °F September 1951: average low 50.53 °F September 1952: average low 49.90 °F September 1953: average low 50.08 °F September 1954: average low 54.70 °F September 1955: average low 51.54 °F September 1956: average low 49.47 °F September 1957: average low 51.04 °F September 1958: average low 53.21 °F September 1959: average low 55.30 °F September 1960: average low 58.02 °F September 1961: average low 57.21 °F September 1962: average low 50.53 °F September 1963: average low 50.77 °F September 1964: average low 51.84 °F September 1965: average low 54.94 °F September 1966: average low 50.38 °F September 1967: average low 50.04 °F September 1968: average low 53.79 °F September 1969: average low 54.00 °F September 1970: average low 55.21 °F September 1971: average low 57.62 °F September 1972: average low 55.17 °F September 1973: average low 57.22 °F September 1974: average low 49.56 °F September 1975: average low 50.11 °F September 1976: average low 50.22 °F September 1977: average low 56.21 °F September 1979: average low 50.87 °F September 1980: average low 55.03 °F September 1981: average low 54.19 °F September 1982: average low 54.60 °F September 1984: average low 53.77 °F September 1985: average low 55.63 °F September 1986: average low 56.58 °F September 1987: average low 54.61 °F September 1988: average low 54.66 °F September 1989: average low 51.18 °F September 1990: average low 56.35 °F September 1991: average low 52.65 °F September 1992: average low 52.63 °F September 1993: average low 50.98 °F September 1994: average low 53.75 °F September 1995: average low 55.20 °F September 1996: average low 53.96 °F September 1997: average low 52.92 °F September 1998: average low 57.44 °F September 1999: average low 51.27 °F September 2000: average low 53.94 °F September 2001: average low 52.31 °F September 2002: average low 55.42 °F September 2004: average low 53.94 °F 1893 1959 2025
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Monthly precipitation (inches) 87 complete rain records
September: Monthly precipitation (inches), 1893–2025 Only complete calendar months are plotted. Gaps indicate missing or flagged daily observations. Exact values follow in the table. 0 5.5 11 September 1901: precipitation 1.76 in September 1902: precipitation 5.17 in September 1903: precipitation 3.14 in September 1904: precipitation 3.19 in September 1905: precipitation 3.78 in September 1915: precipitation 3.70 in September 1916: precipitation 4.74 in September 1917: precipitation 2.16 in September 1918: precipitation 2.93 in September 1919: precipitation 3.73 in September 1920: precipitation 4.09 in September 1921: precipitation 4.33 in September 1922: precipitation 2.46 in September 1923: precipitation 4.36 in September 1924: precipitation 3.40 in September 1925: precipitation 6.50 in September 1926: precipitation 6.18 in September 1927: precipitation 7.76 in September 1928: precipitation 2.46 in September 1929: precipitation 2.31 in September 1931: precipitation 3.32 in September 1933: precipitation 4.91 in September 1934: precipitation 5.70 in September 1935: precipitation 3.42 in September 1936: precipitation 5.61 in September 1937: precipitation 2.46 in September 1938: precipitation 5.27 in September 1939: precipitation 0.64 in September 1940: precipitation 0.86 in September 1941: precipitation 4.17 in September 1942: precipitation 2.45 in September 1943: precipitation 2.03 in September 1944: precipitation 2.23 in September 1945: precipitation 6.07 in September 1946: precipitation 2.48 in September 1947: precipitation 5.20 in September 1948: precipitation 2.28 in September 1949: precipitation 4.39 in September 1950: precipitation 2.47 in September 1951: precipitation 5.26 in September 1952: precipitation 0.90 in September 1953: precipitation 2.39 in September 1954: precipitation 1.74 in September 1955: precipitation 2.05 in September 1956: precipitation 0.72 in September 1957: precipitation 0.67 in September 1958: precipitation 2.72 in September 1959: precipitation 4.83 in September 1960: precipitation 1.77 in September 1961: precipitation 8.66 in September 1962: precipitation 1.06 in September 1963: precipitation 2.49 in September 1964: precipitation 6.97 in September 1965: precipitation 9.57 in September 1966: precipitation 1.65 in September 1967: precipitation 3.90 in September 1968: precipitation 4.06 in September 1969: precipitation 2.19 in September 1970: precipitation 5.77 in September 1971: precipitation 6.26 in September 1972: precipitation 10.32 in September 1973: precipitation 1.98 in September 1974: precipitation 4.15 in September 1975: precipitation 2.03 in September 1976: precipitation 2.70 in September 1977: precipitation 6.39 in September 1979: precipitation 0.04 in September 1980: precipitation 4.65 in September 1981: precipitation 5.55 in September 1982: precipitation 3.52 in September 1983: precipitation 3.84 in September 1984: precipitation 4.52 in September 1985: precipitation 4.35 in September 1986: precipitation 4.60 in September 1989: precipitation 4.69 in September 1990: precipitation 2.85 in September 1991: precipitation 2.70 in September 1992: precipitation 7.09 in September 1993: precipitation 6.50 in September 1994: precipitation 2.10 in September 1995: precipitation 0.78 in September 1996: precipitation 3.19 in September 1997: precipitation 2.30 in September 1998: precipitation 1.66 in September 1999: precipitation 1.25 in September 2002: precipitation 2.54 in September 2004: precipitation 0.44 in 1893 1959 2025
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Hover, focus or tap a bar to see its year and value.
Valparaiso Water Works, IN station observations, not a park-wide average or forecast. Complete quality-screened calendar months only, separately by metric. Daily high/low means and total precipitation; incomplete months stay null. No interpolation or substitution. Completed years only; separate from 1991-2020 normals.
September in-park stays Close × Dunewood, Central Avenue walk-in camping and the separate Dunbar group site; Indiana Dunes State Park is outside this inventory. Normal seasons are planning guidance, not vacancies. Opening/closing months are partial. Unverified means confirm directly. These are normal seasonal schedules, not room or campsite availability.
Backcountry trips, permits and specialist travel need separate planning and are outside the frontcountry comparison.
October→
Moderate 42% of July · 212K avg
Moderate 42% of July · 212K avg
Ideal 64°F / 44°F (18°C / 7°C)
Ideal 64°F / 44°F (18°C / 7°C)
Limited lodging Limited lodging Cooler walking weather and fewer camping options. Read the October guide →
October crowds Close × 212,361 average October visits in 2021–2025.
Monthly recreation visits 47 annual records · 1979–2025
October recreation visits, 1979 to 2025 NPS park-wide recreation visits for October in each year. The vertical scale starts at zero. Exact counts follow in the data table. Missing counts are gaps. 0 200k 400k 1979: 390,467 visits 1980: 66,822 visits 1981: 102,932 visits 1982: 103,961 visits 1983: 114,853 visits 1984: 108,827 visits 1985: 133,354 visits 1986: 102,848 visits 1987: 102,333 visits 1988: 116,048 visits 1989: 160,002 visits 1990: 124,728 visits 1991: 136,249 visits 1992: 145,341 visits 1993: 132,140 visits 1994: 140,964 visits 1995: 113,689 visits 1996: 130,235 visits 1997: 124,887 visits 1998: 126,475 visits 1999: 110,558 visits 2000: 144,658 visits 2001: 86,090 visits 2002: 248,675 visits 2003: 145,072 visits 2004: 124,739 visits 2005: 172,414 visits 2006: 115,264 visits 2007: 85,851 visits 2008: 130,188 visits 2009: 101,558 visits 2010: 143,659 visits 2011: 154,666 visits 2012: 228,117 visits 2013: 78,671 visits 2014: 102,336 visits 2015: 101,082 visits 2016: 115,180 visits 2017: 82,494 visits 2018: 132,862 visits 2019: 105,984 visits 2020: 227,773 visits 2021: 253,640 visits 2022: 232,067 visits 2023: 167,652 visits 2024: 206,285 visits 2025: 202,163 visits 1979 1989 1999 2009 2019 2025
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NPS recreation visits are visits, not unique visitors or a measure of how busy an individual trail feels. Counts can reflect closures, disruptions and changes in counting methods.
October weather Close × 1991 through 2020 averages Monthly precipitation 3.93 in / 100 mm Valparaiso Water Works at about 800 ft is an inland proxy south of the park, not a beach station. Lake breezes, waves and lake-effect snow can make shoreline conditions different. Air temperatures do not establish swimming conditions.
October weather through the years at Valparaiso Water Works, IN.
Average daily high and low (°F) 81 complete high-temperature records · 88 complete low-temperature records
■ High ■ Low
October: Average daily high and low (°F), 1893–2025 Only complete calendar months are plotted. Gaps indicate missing or flagged daily observations. Exact values follow in the table. 0 40 80 October 1893: average high 61.51 °F October 1894: average high 61.49 °F October 1895: average high 56.51 °F October 1896: average high 58.66 °F October 1897: average high 70.83 °F October 1904: average high 65.14 °F October 1915: average high 65.54 °F October 1916: average high 63.92 °F October 1917: average high 52.84 °F October 1918: average high 65.84 °F October 1919: average high 67.80 °F October 1920: average high 70.05 °F October 1921: average high 63.88 °F October 1922: average high 69.03 °F October 1923: average high 61.49 °F October 1925: average high 51.61 °F October 1926: average high 61.51 °F October 1927: average high 68.91 °F October 1928: average high 65.89 °F October 1929: average high 60.64 °F October 1931: average high 67.73 °F October 1932: average high 61.85 °F October 1933: average high 62.22 °F October 1934: average high 65.03 °F October 1935: average high 62.87 °F October 1936: average high 61.52 °F October 1937: average high 58.91 °F October 1938: average high 69.79 °F October 1939: average high 66.44 °F October 1940: average high 67.81 °F October 1941: average high 63.83 °F October 1942: average high 64.42 °F October 1943: average high 63.37 °F October 1944: average high 63.74 °F October 1945: average high 62.41 °F October 1946: average high 70.84 °F October 1947: average high 72.65 °F October 1948: average high 61.44 °F October 1949: average high 67.82 °F October 1950: average high 68.77 °F October 1951: average high 66.46 °F October 1952: average high 61.28 °F October 1953: average high 70.87 °F October 1954: average high 62.51 °F October 1955: average high 66.87 °F October 1956: average high 73.13 °F October 1957: average high 60.85 °F October 1958: average high 68.44 °F October 1960: average high 65.56 °F October 1961: average high 66.21 °F October 1962: average high 66.38 °F October 1963: average high 75.51 °F October 1964: average high 63.52 °F October 1965: average high 63.52 °F October 1967: average high 63.65 °F October 1968: average high 64.97 °F October 1969: average high 62.35 °F October 1970: average high 65.00 °F October 1971: average high 70.32 °F October 1972: average high 57.77 °F October 1973: average high 67.75 °F October 1974: average high 62.62 °F October 1975: average high 66.86 °F October 1976: average high 57.58 °F October 1977: average high 60.13 °F October 1978: average high 63.85 °F October 1979: average high 63.73 °F October 1980: average high 59.52 °F October 1981: average high 60.74 °F October 1982: average high 65.63 °F October 1985: average high 64.05 °F October 1987: average high 57.59 °F October 1989: average high 65.87 °F October 1990: average high 64.48 °F October 1991: average high 65.34 °F October 1992: average high 61.52 °F October 1994: average high 65.83 °F October 1996: average high 64.45 °F October 1997: average high 63.38 °F October 1998: average high 65.13 °F October 1999: average high 64.86 °F October 1893: average low 39.84 °F October 1894: average low 40.09 °F October 1895: average low 34.86 °F October 1896: average low 37.86 °F October 1897: average low 44.19 °F October 1901: average low 42.21 °F October 1902: average low 44.19 °F October 1903: average low 43.20 °F October 1904: average low 42.53 °F October 1915: average low 41.60 °F October 1916: average low 41.29 °F October 1917: average low 35.27 °F October 1918: average low 44.39 °F October 1919: average low 45.95 °F October 1920: average low 47.58 °F October 1921: average low 43.78 °F October 1922: average low 44.97 °F October 1923: average low 39.93 °F October 1925: average low 36.22 °F October 1926: average low 43.76 °F October 1927: average low 47.01 °F October 1928: average low 45.79 °F October 1929: average low 40.62 °F October 1931: average low 47.83 °F October 1932: average low 43.31 °F October 1933: average low 40.77 °F October 1934: average low 44.42 °F October 1935: average low 42.22 °F October 1936: average low 43.85 °F October 1937: average low 41.85 °F October 1938: average low 44.40 °F October 1939: average low 43.80 °F October 1940: average low 45.80 °F October 1941: average low 47.32 °F October 1942: average low 43.26 °F October 1943: average low 41.31 °F October 1944: average low 40.94 °F October 1945: average low 39.94 °F October 1946: average low 44.87 °F October 1947: average low 49.79 °F October 1948: average low 39.97 °F October 1949: average low 46.13 °F October 1950: average low 46.15 °F October 1951: average low 44.92 °F October 1952: average low 35.84 °F October 1953: average low 42.79 °F October 1954: average low 43.88 °F October 1955: average low 44.06 °F October 1956: average low 44.16 °F October 1957: average low 40.07 °F October 1958: average low 43.31 °F October 1959: average low 43.17 °F October 1960: average low 43.09 °F October 1961: average low 44.37 °F October 1962: average low 45.67 °F October 1963: average low 47.21 °F October 1964: average low 38.17 °F October 1965: average low 43.39 °F October 1966: average low 40.38 °F October 1967: average low 43.28 °F October 1968: average low 42.77 °F October 1969: average low 41.15 °F October 1970: average low 45.18 °F October 1971: average low 49.48 °F October 1972: average low 41.45 °F October 1973: average low 47.65 °F October 1974: average low 41.38 °F October 1975: average low 43.05 °F October 1976: average low 38.67 °F October 1977: average low 41.88 °F October 1978: average low 41.96 °F October 1980: average low 39.77 °F October 1981: average low 40.45 °F October 1982: average low 43.61 °F October 1987: average low 37.35 °F October 1988: average low 38.36 °F October 1989: average low 44.08 °F October 1990: average low 42.25 °F October 1991: average low 45.51 °F October 1992: average low 41.55 °F October 1993: average low 40.63 °F October 1994: average low 44.55 °F October 1995: average low 44.87 °F October 1996: average low 43.90 °F October 1997: average low 42.36 °F October 1998: average low 45.45 °F October 1999: average low 43.06 °F October 2000: average low 46.51 °F 1893 1959 2025
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Monthly precipitation (inches) 83 complete rain records
October: Monthly precipitation (inches), 1893–2025 Only complete calendar months are plotted. Gaps indicate missing or flagged daily observations. Exact values follow in the table. 0 6.5 13 October 1901: precipitation 3.38 in October 1902: precipitation 1.56 in October 1903: precipitation 1.10 in October 1904: precipitation 1.12 in October 1905: precipitation 1.26 in October 1915: precipitation 0.56 in October 1916: precipitation 3.12 in October 1917: precipitation 4.23 in October 1918: precipitation 3.83 in October 1919: precipitation 3.47 in October 1920: precipitation 3.05 in October 1921: precipitation 3.18 in October 1922: precipitation 4.80 in October 1923: precipitation 4.31 in October 1925: precipitation 4.25 in October 1926: precipitation 2.66 in October 1927: precipitation 2.65 in October 1928: precipitation 4.19 in October 1929: precipitation 4.02 in October 1931: precipitation 5.41 in October 1932: precipitation 5.15 in October 1933: precipitation 4.45 in October 1934: precipitation 1.66 in October 1935: precipitation 1.11 in October 1936: precipitation 4.41 in October 1937: precipitation 4.83 in October 1938: precipitation 0.56 in October 1939: precipitation 3.46 in October 1940: precipitation 3.27 in October 1941: precipitation 12.27 in October 1942: precipitation 1.77 in October 1943: precipitation 1.96 in October 1944: precipitation 2.75 in October 1945: precipitation 1.82 in October 1946: precipitation 2.51 in October 1947: precipitation 2.12 in October 1948: precipitation 0.69 in October 1949: precipitation 3.03 in October 1950: precipitation 1.23 in October 1951: precipitation 4.70 in October 1952: precipitation 1.13 in October 1953: precipitation 1.68 in October 1954: precipitation 11.63 in October 1955: precipitation 6.80 in October 1956: precipitation 0.76 in October 1957: precipitation 5.17 in October 1958: precipitation 0.98 in October 1959: precipitation 6.04 in October 1960: precipitation 2.21 in October 1961: precipitation 2.62 in October 1962: precipitation 3.15 in October 1963: precipitation 1.05 in October 1964: precipitation 0.51 in October 1966: precipitation 3.26 in October 1967: precipitation 6.43 in October 1968: precipitation 3.03 in October 1969: precipitation 6.87 in October 1970: precipitation 4.79 in October 1971: precipitation 1.80 in October 1972: precipitation 3.70 in October 1973: precipitation 3.55 in October 1974: precipitation 1.58 in October 1975: precipitation 1.46 in October 1976: precipitation 2.73 in October 1977: precipitation 2.37 in October 1978: precipitation 3.83 in October 1980: precipitation 2.39 in October 1981: precipitation 1.74 in October 1982: precipitation 1.33 in October 1983: precipitation 2.62 in October 1985: precipitation 3.51 in October 1986: precipitation 4.07 in October 1989: precipitation 2.54 in October 1990: precipitation 6.01 in October 1992: precipitation 0.82 in October 1993: precipitation 4.38 in October 1994: precipitation 2.23 in October 1995: precipitation 2.99 in October 1996: precipitation 3.62 in October 1997: precipitation 2.28 in October 1998: precipitation 2.88 in October 1999: precipitation 1.76 in October 2004: precipitation 2.26 in 1893 1959 2025
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Valparaiso Water Works, IN station observations, not a park-wide average or forecast. Complete quality-screened calendar months only, separately by metric. Daily high/low means and total precipitation; incomplete months stay null. No interpolation or substitution. Completed years only; separate from 1991-2020 normals.
October in-park stays Close × Dunewood, Central Avenue walk-in camping and the separate Dunbar group site; Indiana Dunes State Park is outside this inventory. Normal seasons are planning guidance, not vacancies. Opening/closing months are partial. Unverified means confirm directly. These are normal seasonal schedules, not room or campsite availability.
Backcountry trips, permits and specialist travel need separate planning and are outside the frontcountry comparison.
November→
Quiet 23% of July · 116K avg
Quiet 23% of July · 116K avg
Rough 49°F / 34°F (10°C / 1°C)
Rough 49°F / 34°F (10°C / 1°C)
Closed lodging Closed lodging Cold nights and the end of the normal Dunewood camping season. Read the November guide →
November crowds Close × 115,522 average November visits in 2021–2025.
Monthly recreation visits 47 annual records · 1979–2025
November recreation visits, 1979 to 2025 NPS park-wide recreation visits for November in each year. The vertical scale starts at zero. Exact counts follow in the data table. Missing counts are gaps. 0 150k 300k 1979: 8,141 visits 1980: 11,797 visits 1981: 12,129 visits 1982: 12,190 visits 1983: 37,304 visits 1984: 80,516 visits 1985: 50,176 visits 1986: 73,333 visits 1987: 78,547 visits 1988: 68,861 visits 1989: 69,385 visits 1990: 83,821 visits 1991: 92,568 visits 1992: 173,131 visits 1993: 62,128 visits 1994: 68,447 visits 1995: 54,742 visits 1996: 52,627 visits 1997: 59,638 visits 1998: 76,710 visits 1999: 80,484 visits 2000: 71,602 visits 2001: 79,302 visits 2002: 78,610 visits 2003: 205,133 visits 2004: 64,693 visits 2005: 294,311 visits 2006: 95,094 visits 2007: 87,854 visits 2008: 61,223 visits 2009: 80,610 visits 2010: 66,410 visits 2011: 67,993 visits 2012: 67,680 visits 2013: 62,707 visits 2014: 64,236 visits 2015: 75,316 visits 2016: 82,775 visits 2017: 87,193 visits 2018: 52,878 visits 2019: 79,674 visits 2020: 78,893 visits 2021: 144,881 visits 2022: 108,278 visits 2023: 104,878 visits 2024: 115,943 visits 2025: 103,630 visits 1979 1989 1999 2009 2019 2025
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NPS recreation visits are visits, not unique visitors or a measure of how busy an individual trail feels. Counts can reflect closures, disruptions and changes in counting methods.
November weather Close × 1991 through 2020 averages Monthly precipitation 3.26 in / 83 mm Valparaiso Water Works at about 800 ft is an inland proxy south of the park, not a beach station. Lake breezes, waves and lake-effect snow can make shoreline conditions different. Air temperatures do not establish swimming conditions.
November weather through the years at Valparaiso Water Works, IN.
Average daily high and low (°F) 87 complete high-temperature records · 88 complete low-temperature records
■ High ■ Low
November: Average daily high and low (°F), 1893–2025 Only complete calendar months are plotted. Gaps indicate missing or flagged daily observations. Exact values follow in the table. 0 30 60 November 1894: average high 40.57 °F November 1895: average high 44.49 °F November 1903: average high 46.44 °F November 1904: average high 52.83 °F November 1915: average high 52.60 °F November 1916: average high 51.26 °F November 1917: average high 50.47 °F November 1918: average high 49.43 °F November 1919: average high 46.78 °F November 1920: average high 46.57 °F November 1921: average high 46.83 °F November 1923: average high 49.33 °F November 1924: average high 50.61 °F November 1925: average high 47.24 °F November 1926: average high 44.10 °F November 1927: average high 53.65 °F November 1928: average high 49.50 °F November 1929: average high 43.49 °F November 1931: average high 57.20 °F November 1932: average high 45.28 °F November 1933: average high 47.04 °F November 1934: average high 51.39 °F November 1935: average high 45.57 °F November 1936: average high 45.73 °F November 1937: average high 45.64 °F November 1938: average high 53.49 °F November 1939: average high 48.25 °F November 1940: average high 46.58 °F November 1941: average high 50.53 °F November 1942: average high 50.73 °F November 1943: average high 44.16 °F November 1944: average high 48.54 °F November 1945: average high 49.74 °F November 1946: average high 52.40 °F November 1947: average high 41.70 °F November 1948: average high 51.43 °F November 1949: average high 49.25 °F November 1950: average high 43.54 °F November 1951: average high 40.95 °F November 1952: average high 51.83 °F November 1953: average high 51.96 °F November 1954: average high 50.37 °F November 1955: average high 46.87 °F November 1956: average high 49.64 °F November 1957: average high 48.74 °F November 1958: average high 52.15 °F November 1959: average high 42.71 °F November 1960: average high 50.91 °F November 1961: average high 48.79 °F November 1962: average high 50.00 °F November 1963: average high 53.60 °F November 1964: average high 54.16 °F November 1965: average high 52.26 °F November 1966: average high 50.97 °F November 1967: average high 43.66 °F November 1968: average high 48.34 °F November 1969: average high 46.66 °F November 1970: average high 46.39 °F November 1971: average high 50.50 °F November 1972: average high 41.67 °F November 1973: average high 50.17 °F November 1974: average high 48.22 °F November 1975: average high 54.82 °F November 1976: average high 41.80 °F November 1977: average high 49.71 °F November 1978: average high 52.60 °F November 1979: average high 49.16 °F November 1980: average high 48.70 °F November 1984: average high 48.77 °F November 1985: average high 47.09 °F November 1987: average high 52.03 °F November 1988: average high 49.41 °F November 1989: average high 50.79 °F November 1990: average high 54.94 °F November 1991: average high 44.01 °F November 1992: average high 43.29 °F November 1993: average high 46.33 °F November 1994: average high 54.48 °F November 1995: average high 41.71 °F November 1996: average high 40.31 °F November 1997: average high 43.68 °F November 1998: average high 52.95 °F November 1999: average high 58.51 °F November 2000: average high 44.93 °F November 2001: average high 57.90 °F November 2002: average high 46.00 °F November 2003: average high 51.08 °F November 1895: average low 28.24 °F November 1897: average low 29.03 °F November 1899: average low 34.60 °F November 1901: average low 27.55 °F November 1902: average low 38.13 °F November 1903: average low 28.29 °F November 1904: average low 31.78 °F November 1905: average low 29.38 °F November 1915: average low 32.89 °F November 1916: average low 31.41 °F November 1917: average low 31.32 °F November 1919: average low 29.91 °F November 1920: average low 31.09 °F November 1921: average low 32.06 °F November 1923: average low 32.64 °F November 1924: average low 32.12 °F November 1925: average low 28.93 °F November 1926: average low 28.97 °F November 1927: average low 35.78 °F November 1928: average low 34.97 °F November 1929: average low 27.14 °F November 1931: average low 40.36 °F November 1932: average low 26.89 °F November 1933: average low 28.94 °F November 1934: average low 37.14 °F November 1935: average low 31.32 °F November 1936: average low 28.78 °F November 1937: average low 27.56 °F November 1938: average low 32.94 °F November 1939: average low 31.41 °F November 1940: average low 29.41 °F November 1941: average low 34.40 °F November 1944: average low 36.39 °F November 1945: average low 33.87 °F November 1946: average low 34.06 °F November 1947: average low 27.84 °F November 1948: average low 36.32 °F November 1949: average low 31.12 °F November 1950: average low 26.80 °F November 1951: average low 26.03 °F November 1952: average low 30.74 °F November 1953: average low 33.58 °F November 1954: average low 32.67 °F November 1955: average low 26.44 °F November 1956: average low 30.48 °F November 1957: average low 32.10 °F November 1958: average low 33.46 °F November 1959: average low 25.60 °F November 1960: average low 34.33 °F November 1961: average low 32.52 °F November 1962: average low 31.27 °F November 1963: average low 35.71 °F November 1964: average low 33.21 °F November 1965: average low 32.89 °F November 1966: average low 33.70 °F November 1967: average low 29.96 °F November 1968: average low 33.87 °F November 1969: average low 30.07 °F November 1970: average low 32.47 °F November 1971: average low 32.17 °F November 1972: average low 33.12 °F November 1973: average low 34.35 °F November 1974: average low 33.68 °F November 1975: average low 37.56 °F November 1976: average low 25.23 °F November 1977: average low 34.33 °F November 1978: average low 31.39 °F November 1979: average low 31.97 °F November 1980: average low 30.68 °F November 1984: average low 32.69 °F November 1986: average low 30.00 °F November 1987: average low 36.74 °F November 1988: average low 34.59 °F November 1989: average low 35.23 °F November 1990: average low 37.36 °F November 1991: average low 29.04 °F November 1992: average low 33.87 °F November 1993: average low 31.48 °F November 1994: average low 37.17 °F November 1995: average low 26.25 °F November 1996: average low 27.30 °F November 1997: average low 30.09 °F November 1998: average low 36.99 °F November 1999: average low 36.13 °F November 2000: average low 31.34 °F November 2001: average low 39.97 °F November 2002: average low 31.54 °F November 2003: average low 35.59 °F 1893 1959 2025
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Monthly precipitation (inches) 87 complete rain records
November: Monthly precipitation (inches), 1893–2025 Only complete calendar months are plotted. Gaps indicate missing or flagged daily observations. Exact values follow in the table. 0 4.5 9 November 1901: precipitation 0.86 in November 1902: precipitation 3.07 in November 1903: precipitation 1.68 in November 1904: precipitation 0.53 in November 1905: precipitation 1.15 in November 1915: precipitation 1.66 in November 1916: precipitation 1.91 in November 1917: precipitation 0.49 in November 1918: precipitation 2.43 in November 1919: precipitation 2.61 in November 1920: precipitation 1.91 in November 1921: precipitation 4.08 in November 1922: precipitation 2.91 in November 1923: precipitation 2.48 in November 1924: precipitation 1.33 in November 1925: precipitation 3.56 in November 1926: precipitation 4.20 in November 1927: precipitation 6.08 in November 1928: precipitation 3.74 in November 1929: precipitation 2.84 in November 1931: precipitation 5.87 in November 1932: precipitation 2.07 in November 1933: precipitation 0.94 in November 1934: precipitation 4.79 in November 1935: precipitation 4.74 in November 1936: precipitation 1.67 in November 1937: precipitation 2.25 in November 1938: precipitation 1.58 in November 1939: precipitation 2.07 in November 1940: precipitation 3.74 in November 1941: precipitation 4.67 in November 1942: precipitation 4.38 in November 1943: precipitation 2.55 in November 1944: precipitation 2.53 in November 1945: precipitation 2.51 in November 1946: precipitation 2.46 in November 1947: precipitation 2.31 in November 1948: precipitation 2.71 in November 1949: precipitation 2.58 in November 1950: precipitation 2.66 in November 1951: precipitation 3.67 in November 1952: precipitation 2.40 in November 1953: precipitation 1.33 in November 1954: precipitation 1.35 in November 1955: precipitation 2.46 in November 1956: precipitation 1.53 in November 1957: precipitation 3.26 in November 1958: precipitation 3.55 in November 1959: precipitation 2.79 in November 1960: precipitation 2.03 in November 1961: precipitation 2.30 in November 1962: precipitation 1.40 in November 1963: precipitation 2.24 in November 1964: precipitation 1.88 in November 1965: precipitation 1.53 in November 1966: precipitation 6.14 in November 1967: precipitation 2.49 in November 1968: precipitation 4.36 in November 1969: precipitation 2.78 in November 1970: precipitation 3.07 in November 1971: precipitation 1.39 in November 1972: precipitation 4.54 in November 1973: precipitation 1.72 in November 1974: precipitation 3.44 in November 1975: precipitation 3.37 in November 1976: precipitation 1.48 in November 1977: precipitation 2.47 in November 1978: precipitation 3.20 in November 1979: precipitation 3.41 in November 1980: precipitation 1.46 in November 1982: precipitation 5.85 in November 1983: precipitation 4.05 in November 1984: precipitation 3.76 in November 1985: precipitation 8.42 in November 1986: precipitation 3.79 in November 1989: precipitation 3.24 in November 1990: precipitation 8.41 in November 1991: precipitation 4.04 in November 1992: precipitation 5.41 in November 1993: precipitation 3.17 in November 1994: precipitation 5.19 in November 1995: precipitation 4.35 in November 1996: precipitation 3.19 in November 1997: precipitation 1.76 in November 1998: precipitation 1.82 in November 2002: precipitation 2.54 in November 2004: precipitation 4.66 in 1893 1959 2025
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Hover, focus or tap a bar to see its year and value.
Valparaiso Water Works, IN station observations, not a park-wide average or forecast. Complete quality-screened calendar months only, separately by metric. Daily high/low means and total precipitation; incomplete months stay null. No interpolation or substitution. Completed years only; separate from 1991-2020 normals.
November in-park stays Close × Dunewood, Central Avenue walk-in camping and the separate Dunbar group site; Indiana Dunes State Park is outside this inventory. Normal seasons are planning guidance, not vacancies. Opening/closing months are partial. Unverified means confirm directly. These are normal seasonal schedules, not room or campsite availability.
Backcountry trips, permits and specialist travel need separate planning and are outside the frontcountry comparison.
December→
Lowest 20% of July · 100K avg
Lowest 20% of July · 100K avg
Harsh 37°F / 24°F (3°C / -5°C)
Harsh 37°F / 24°F (3°C / -5°C)
Closed lodging Closed lodging Winter shoreline weather. A low visit count does not make ice or waves safe. Read the December guide →
December crowds Close × 100,250 average December visits in 2021–2025.
Monthly recreation visits 47 annual records · 1979–2025
December recreation visits, 1979 to 2025 NPS park-wide recreation visits for December in each year. The vertical scale starts at zero. Exact counts follow in the data table. Missing counts are gaps. 0 75k 150k 1979: 2,964 visits 1980: 4,424 visits 1981: 7,676 visits 1982: 5,676 visits 1983: 5,243 visits 1984: 61,487 visits 1985: 49,263 visits 1986: 15,817 visits 1987: 51,552 visits 1988: 58,179 visits 1989: 51,504 visits 1990: 62,470 visits 1991: 63,185 visits 1992: 61,955 visits 1993: 53,993 visits 1994: 48,327 visits 1995: 32,367 visits 1996: 40,604 visits 1997: 48,086 visits 1998: 57,148 visits 1999: 47,890 visits 2000: 44,582 visits 2001: 55,811 visits 2002: 49,419 visits 2003: 63,307 visits 2004: 54,357 visits 2005: 72,130 visits 2006: 78,447 visits 2007: 94,005 visits 2008: 54,174 visits 2009: 44,582 visits 2010: 50,488 visits 2011: 59,354 visits 2012: 55,961 visits 2013: 44,350 visits 2014: 59,165 visits 2015: 64,278 visits 2016: 53,965 visits 2017: 64,399 visits 2018: 30,233 visits 2019: 74,808 visits 2020: 93,014 visits 2021: 102,448 visits 2022: 88,662 visits 2023: 88,524 visits 2024: 89,684 visits 2025: 131,931 visits 1979 1989 1999 2009 2019 2025
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NPS recreation visits are visits, not unique visitors or a measure of how busy an individual trail feels. Counts can reflect closures, disruptions and changes in counting methods.
December weather Close × 1991 through 2020 averages Monthly precipitation 2.58 in / 66 mm Valparaiso Water Works at about 800 ft is an inland proxy south of the park, not a beach station. Lake breezes, waves and lake-effect snow can make shoreline conditions different. Air temperatures do not establish swimming conditions.
December weather through the years at Valparaiso Water Works, IN.
Average daily high and low (°F) 85 complete high-temperature records · 86 complete low-temperature records
■ High ■ Low
December: Average daily high and low (°F), 1893–2025 Only complete calendar months are plotted. Gaps indicate missing or flagged daily observations. Exact values follow in the table. 0 25 50 December 1894: average high 39.46 °F December 1895: average high 36.46 °F December 1896: average high 39.75 °F December 1898: average high 29.48 °F December 1903: average high 29.98 °F December 1915: average high 33.17 °F December 1916: average high 34.32 °F December 1917: average high 28.50 °F December 1919: average high 27.84 °F December 1920: average high 37.21 °F December 1921: average high 37.97 °F December 1922: average high 37.13 °F December 1923: average high 45.22 °F December 1924: average high 30.05 °F December 1925: average high 31.23 °F December 1926: average high 32.62 °F December 1927: average high 36.40 °F December 1928: average high 39.05 °F December 1929: average high 32.78 °F December 1930: average high 35.04 °F December 1931: average high 44.00 °F December 1932: average high 36.73 °F December 1933: average high 38.57 °F December 1934: average high 31.78 °F December 1935: average high 30.73 °F December 1936: average high 40.79 °F December 1938: average high 35.94 °F December 1939: average high 40.75 °F December 1940: average high 39.00 °F December 1941: average high 41.37 °F December 1942: average high 31.00 °F December 1943: average high 35.77 °F December 1944: average high 30.42 °F December 1945: average high 29.39 °F December 1947: average high 36.16 °F December 1948: average high 38.52 °F December 1949: average high 38.23 °F December 1950: average high 29.32 °F December 1951: average high 35.49 °F December 1952: average high 37.38 °F December 1953: average high 39.82 °F December 1954: average high 36.26 °F December 1955: average high 34.08 °F December 1956: average high 39.32 °F December 1957: average high 42.13 °F December 1958: average high 30.04 °F December 1959: average high 42.11 °F December 1960: average high 32.84 °F December 1961: average high 33.56 °F December 1962: average high 32.81 °F December 1963: average high 26.68 °F December 1964: average high 34.54 °F December 1965: average high 42.75 °F December 1966: average high 36.20 °F December 1967: average high 37.43 °F December 1969: average high 33.93 °F December 1970: average high 38.61 °F December 1971: average high 42.00 °F December 1972: average high 33.09 °F December 1973: average high 34.62 °F December 1974: average high 36.39 °F December 1975: average high 38.04 °F December 1976: average high 30.25 °F December 1977: average high 32.29 °F December 1979: average high 42.90 °F December 1980: average high 36.56 °F December 1981: average high 33.37 °F December 1983: average high 23.66 °F December 1986: average high 36.59 °F December 1988: average high 36.83 °F December 1989: average high 28.10 °F December 1990: average high 39.18 °F December 1991: average high 39.28 °F December 1992: average high 34.88 °F December 1993: average high 34.38 °F December 1994: average high 41.37 °F December 1995: average high 32.55 °F December 1996: average high 34.10 °F December 1997: average high 35.64 °F December 1998: average high 43.40 °F December 1999: average high 37.52 °F December 2000: average high 24.68 °F December 2001: average high 41.52 °F December 2002: average high 37.40 °F December 2004: average high 37.37 °F December 1896: average low 24.65 °F December 1898: average low 13.43 °F December 1901: average low 16.33 °F December 1902: average low 18.80 °F December 1903: average low 11.63 °F December 1905: average low 21.96 °F December 1915: average low 18.94 °F December 1916: average low 14.02 °F December 1917: average low 12.83 °F December 1918: average low 29.02 °F December 1919: average low 12.12 °F December 1920: average low 23.00 °F December 1921: average low 24.51 °F December 1922: average low 20.02 °F December 1923: average low 31.22 °F December 1924: average low 13.14 °F December 1925: average low 16.50 °F December 1926: average low 18.51 °F December 1927: average low 20.32 °F December 1928: average low 23.80 °F December 1929: average low 19.05 °F December 1931: average low 30.98 °F December 1932: average low 19.02 °F December 1933: average low 23.27 °F December 1934: average low 18.52 °F December 1935: average low 16.93 °F December 1936: average low 23.64 °F December 1937: average low 19.64 °F December 1938: average low 21.55 °F December 1939: average low 26.73 °F December 1940: average low 26.03 °F December 1941: average low 30.12 °F December 1942: average low 15.38 °F December 1943: average low 19.27 °F December 1944: average low 14.65 °F December 1945: average low 14.99 °F December 1946: average low 24.42 °F December 1947: average low 21.91 °F December 1949: average low 21.77 °F December 1950: average low 10.71 °F December 1952: average low 25.20 °F December 1953: average low 23.78 °F December 1954: average low 22.61 °F December 1955: average low 17.75 °F December 1956: average low 27.54 °F December 1957: average low 26.25 °F December 1958: average low 12.39 °F December 1959: average low 29.05 °F December 1961: average low 18.87 °F December 1962: average low 14.22 °F December 1963: average low 10.25 °F December 1964: average low 20.44 °F December 1965: average low 29.42 °F December 1966: average low 22.38 °F December 1967: average low 24.06 °F December 1968: average low 20.55 °F December 1969: average low 21.68 °F December 1970: average low 22.87 °F December 1971: average low 27.48 °F December 1972: average low 20.44 °F December 1973: average low 21.19 °F December 1974: average low 25.76 °F December 1975: average low 24.89 °F December 1976: average low 12.29 °F December 1977: average low 16.23 °F December 1979: average low 25.86 °F December 1980: average low 21.94 °F December 1981: average low 20.83 °F December 1984: average low 25.78 °F December 1986: average low 24.68 °F December 1987: average low 28.01 °F December 1988: average low 21.81 °F December 1989: average low 15.07 °F December 1990: average low 23.04 °F December 1991: average low 25.22 °F December 1992: average low 23.30 °F December 1993: average low 23.13 °F December 1994: average low 29.07 °F December 1995: average low 20.06 °F December 1996: average low 22.65 °F December 1997: average low 26.09 °F December 1998: average low 27.47 °F December 1999: average low 22.93 °F December 2000: average low 7.80 °F December 2001: average low 27.71 °F December 2002: average low 21.54 °F 1893 1959 2025
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Monthly precipitation (inches) 80 complete rain records
December: Monthly precipitation (inches), 1893–2025 Only complete calendar months are plotted. Gaps indicate missing or flagged daily observations. Exact values follow in the table. 0 3.5 7 December 1901: precipitation 1.84 in December 1902: precipitation 1.96 in December 1903: precipitation 2.56 in December 1904: precipitation 1.43 in December 1905: precipitation 1.68 in December 1915: precipitation 1.14 in December 1916: precipitation 3.65 in December 1917: precipitation 1.59 in December 1918: precipitation 3.43 in December 1919: precipitation 0.90 in December 1920: precipitation 2.82 in December 1921: precipitation 2.52 in December 1922: precipitation 1.88 in December 1923: precipitation 5.10 in December 1924: precipitation 3.26 in December 1925: precipitation 1.42 in December 1926: precipitation 1.93 in December 1927: precipitation 4.43 in December 1928: precipitation 2.40 in December 1929: precipitation 3.60 in December 1930: precipitation 0.65 in December 1931: precipitation 1.87 in December 1932: precipitation 3.30 in December 1933: precipitation 1.28 in December 1934: precipitation 2.16 in December 1935: precipitation 1.76 in December 1936: precipitation 2.90 in December 1937: precipitation 1.92 in December 1938: precipitation 2.02 in December 1939: precipitation 1.27 in December 1940: precipitation 2.31 in December 1941: precipitation 1.68 in December 1942: precipitation 2.60 in December 1943: precipitation 0.42 in December 1944: precipitation 1.67 in December 1945: precipitation 1.59 in December 1946: precipitation 3.31 in December 1947: precipitation 1.57 in December 1948: precipitation 2.55 in December 1949: precipitation 5.20 in December 1950: precipitation 2.08 in December 1951: precipitation 3.31 in December 1952: precipitation 1.91 in December 1953: precipitation 2.28 in December 1954: precipitation 2.35 in December 1955: precipitation 0.74 in December 1956: precipitation 1.71 in December 1957: precipitation 3.29 in December 1958: precipitation 0.56 in December 1959: precipitation 1.28 in December 1960: precipitation 1.68 in December 1961: precipitation 2.03 in December 1962: precipitation 0.62 in December 1963: precipitation 0.68 in December 1964: precipitation 2.11 in December 1965: precipitation 6.57 in December 1966: precipitation 3.92 in December 1967: precipitation 4.22 in December 1968: precipitation 3.78 in December 1969: precipitation 1.29 in December 1970: precipitation 1.27 in December 1971: precipitation 5.15 in December 1972: precipitation 4.76 in December 1973: precipitation 3.94 in December 1974: precipitation 2.73 in December 1975: precipitation 2.89 in December 1976: precipitation 1.13 in December 1977: precipitation 2.41 in December 1978: precipitation 3.19 in December 1979: precipitation 2.23 in December 1980: precipitation 2.82 in December 1982: precipitation 5.01 in December 1985: precipitation 1.84 in December 1986: precipitation 1.37 in December 1993: precipitation 1.41 in December 1994: precipitation 2.20 in December 1996: precipitation 3.15 in December 1998: precipitation 2.58 in December 2002: precipitation 1.96 in December 2004: precipitation 3.09 in 1893 1959 2025
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Valparaiso Water Works, IN station observations, not a park-wide average or forecast. Complete quality-screened calendar months only, separately by metric. Daily high/low means and total precipitation; incomplete months stay null. No interpolation or substitution. Completed years only; separate from 1991-2020 normals.
December in-park stays Close × Dunewood, Central Avenue walk-in camping and the separate Dunbar group site; Indiana Dunes State Park is outside this inventory. Normal seasons are planning guidance, not vacancies. Opening/closing months are partial. Unverified means confirm directly. These are normal seasonal schedules, not room or campsite availability.
Backcountry trips, permits and specialist travel need separate planning and are outside the frontcountry comparison.
