New Windsor, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 14° 31° -27° (1979) 69° (1989) 1.49" 9.4"
February 19° 36° -28° (1996) 79° (1931) 1.68" 6.8"
March 29° 49° -19° (1960) 88° (1986) 2.86" 4"
April 41° 62° 7° (1982) 93° (1986) 3.59" 0.9"
May 51° 73° 25° (2005) 104° (1934) 4.32" 0"
June 61° 82° 39° (1993) 104° (1988) 4.49" 0"
July 65° 86° 46° (1971) 111° (1936) 4.29" 0"
August 63° 84° 40° (1986) 106° (1936) 4.52" 0"
September 54° 77° 24° (1942) 100° (1939) 3.09" 0"
October 42° 64° 11° (1925) 95° (2006) 2.97" 0.1"
November 31° 49° -9° (1976) 80° (2000) 2.56" 1.2"
December 19° 35° -24° (1989) 71° (1998) 2.18" 9.3"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 60° 82° 41° (1967) 99° (1953) 0.12" 0"
Sep 2 60° 82° 38° (1946) 99° (1953) 0.12" 0"
Sep 3 59° 81° 43° (1974) 98° (1913) 0.12" 0"
Sep 4 59° 81° 39° (1974) 98° (1925) 0.12" 0"
Sep 5 59° 81° 42° (1974) 99° (1899) 0.11" 0"
Sep 6 58° 80° 40° (1988) 100° (1922) 0.11" 0"
Sep 7 58° 80° 39° (1956) 99° (1939) 0.11" 0"
Sep 8 57° 80° 38° (1986) 98° (1922) 0.11" 0"
Sep 9 57° 80° 38° (1883) 99° (1933) 0.11" 0"
Sep 10 57° 79° 40° (1883) 95° (1983) 0.1" 0"
Sep 11 56° 79° 40° (1940) 97° (2000) 0.1" 0"
Sep 12 56° 78° 38° (1955) 96° (1927) 0.1" 0"
Sep 13 55° 78° 36° (1902) 97° (1939) 0.1" 0"
Sep 14 55° 78° 39° (1974) 99° (1939) 0.1" 0"
Sep 15 54° 77° 36° (2007) 100° (1939) 0.1" 0"
Sep 16 54° 77° 37° (1984) 92° (1931) 0.1" 0"
Sep 17 53° 77° 35° (1937) 96° (1927) 0.1" 0"
Sep 18 53° 76° 35° (1929) 92° (2007) 0.1" 0"
Sep 19 52° 76° 34° (1991) 93° (1948) 0.1" 0"
Sep 20 52° 75° 30° (1991) 92° (1931) 0.1" 0"
Sep 21 51° 75° 32° (1991) 92° (2007) 0.11" 0"
Sep 22 51° 74° 32° (1995) 95° (1937) 0.1" 0"
Sep 23 51° 74° 31° (1995) 91° (2007) 0.1" 0"
Sep 24 50° 74° 30° (1989) 91° (2007) 0.09" 0"
Sep 25 50° 73° 30° (1942) 91° (1920) 0.1" 0"
Sep 26 49° 73° 32° (1940) 90° (1891) 0.1" 0"
Sep 27 49° 72° 33° (1989) 90° (1990) 0.1" 0"
Sep 28 48° 72° 24° (1942) 95° (1953) 0.09" 0"
Sep 29 48° 71° 30° (1984) 99° (1953) 0.08" 0"
Sep 30 48° 71° 28° (1899) 92° (1952) 0.09" 0"
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