Windsor, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 19° 34° -26° (1915) 74° (1909) 1.99" NA
February 24° 41° -24° (1910) 75° (1972) 1.89" NA
March 33° 52° -7° (1960) 89° (1910) 3.3" NA
April 43° 65° 19° (1997) 90° (1930) 3.7" NA
May 53° 75° 27° (1925) 97° (1913) 3.99" NA
June 62° 83° 35° (1917) 105° (1954) 4.05" NA
July 66° 87° 43° (1904) 111° (1936) 4" NA
August 63° 85° 37° (1915) 107° (1918) 3.27" NA
September 56° 80° 26° (1942) 106° (1954) 3.05" NA
October 45° 68° 16° (1925) 95° (1922) 3.07" NA
November 35° 52° -6° (1950) 84° (1965) 3.85" NA
December 24° 39° -20° (1989) 72° (1948) 2.98" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 29° 45° 5° (1964) 71° (1970) 0.12" NA
Dec 2 29° 44° 4° (1929) 70° (1982) 0.12" NA
Dec 3 28° 44° -6° (1929) 70° (1982) 0.12" NA
Dec 4 28° 44° 4° (1991) 71° (1998) 0.11" NA
Dec 5 28° 43° 10° (1908) 68° (1956) 0.11" NA
Dec 6 27° 43° 1° (1977) 70° (1998) 0.11" NA
Dec 7 27° 42° -1° (1917) 68° (1916) 0.11" NA
Dec 8 27° 42° -4° (1909) 68° (1946) 0.11" NA
Dec 9 26° 42° -7° (1909) 68° (1918) 0.11" NA
Dec 10 26° 41° -10° (1917) 65° (1971) 0.1" NA
Dec 11 26° 41° -19° (1917) 64° (1931) 0.1" NA
Dec 12 25° 41° -14° (1917) 65° (1929) 0.1" NA
Dec 13 25° 40° -5° (1962) 65° (1975) 0.1" NA
Dec 14 25° 40° -3° (1963) 65° (1984) 0.1" NA
Dec 15 24° 39° -16° (1917) 72° (1948) 0.1" NA
Dec 16 24° 39° -12° (1951) 67° (1984) 0.09" NA
Dec 17 24° 39° -8° (1914) 65° (1908) 0.09" NA
Dec 18 24° 39° -10° (1922) 64° (1908) 0.09" NA
Dec 19 23° 38° -13° (1983) 58° (1939) 0.09" NA
Dec 20 23° 38° -9° (1989) 67° (1941) 0.09" NA
Dec 21 23° 38° -16° (1989) 65° (1988) 0.09" NA
Dec 22 22° 37° -20° (1989) 59° (1941) 0.09" NA
Dec 23 22° 37° -16° (1989) 65° (1933) 0.09" NA
Dec 24 22° 37° -18° (1983) 60° (1932) 0.08" NA
Dec 25 22° 37° -15° (1983) 63° (1982) 0.08" NA
Dec 26 21° 36° -15° (1914) 67° (1942) 0.08" NA
Dec 27 21° 36° -7° (1935) 64° (1907) 0.08" NA
Dec 28 21° 36° -19° (1924) 69° (1984) 0.08" NA
Dec 29 21° 36° -6° (1917) 65° (1984) 0.08" NA
Dec 30 20° 35° -13° (1909) 65° (1965) 0.08" NA
Dec 31 20° 35° -8° (1976) 64° (1951) 0.08" NA
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