New Windsor, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 12° 30° -27° (1979) 69° (1989) 1.58" 10.2"
February 18° 36° -28° (1996) 79° (1931) 1.51" 7"
March 29° 48° -19° (1960) 88° (1986) 2.92" 4.9"
April 39° 62° 7° (1982) 93° (1986) 3.82" 1.3"
May 50° 73° 25° (2005) 104° (1934) 4.25" 0"
June 60° 83° 39° (1993) 104° (1988) 4.63" 0"
July 65° 86° 46° (1971) 111° (1936) 4.03" 0"
August 62° 84° 40° (1986) 106° (1936) 4.41" 0"
September 53° 77° 24° (1942) 100° (1939) 3.16" 0"
October 42° 64° 11° (1925) 95° (2006) 2.8" 0.2"
November 30° 48° -9° (1976) 80° (2000) 2.73" 3"
December 18° 34° -24° (1989) 71° (1998) 2.2" 8.4"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 45° 68° 30° (1909) 90° (1952) 0.13" NA
May 2 45° 68° 28° (2005) 89° (1968) 0.13" NA
May 3 45° 69° 25° (2005) 89° (1949) 0.13" NA
May 4 46° 69° 28° (2005) 93° (1952) 0.13" NA
May 5 46° 69° 35° (2005) 93° (1949) 0.13" NA
May 6 46° 70° 30° (1992) 94° (1934) 0.13" NA
May 7 47° 70° 29° (1989) 88° (1965) 0.13" NA
May 8 47° 70° 32° (1976) 92° (1963) 0.13" NA
May 9 48° 71° 30° (1983) 95° (1934) 0.13" NA
May 10 48° 71° 26° (1966) 89° (1911) 0.13" NA
May 11 48° 72° 33° (1907) 91° (1987) 0.13" NA
May 12 49° 72° 33° (1960) 94° (1956) 0.13" NA
May 13 49° 72° 31° (1971) 91° (1915) 0.13" NA
May 14 49° 73° 34° (1980) 93° (2007) 0.13" NA
May 15 50° 73° 35° (1973) 91° (1941) 0.14" NA
May 16 50° 73° 31° (1997) 90° (1992) 0.14" NA
May 17 50° 74° 35° (2002) 91° (1987) 0.14" NA
May 18 51° 74° 33° (2002) 92° (1998) 0.14" NA
May 19 51° 74° 36° (2002) 93° (1962) 0.14" NA
May 20 51° 75° 32° (1954) 92° (1934) 0.14" NA
May 21 52° 75° 32° (2002) 93° (1934) 0.14" NA
May 22 52° 75° 37° (1963) 94° (1925) 0.14" NA
May 23 52° 76° 33° (1963) 93° (1975) 0.14" NA
May 24 53° 76° 36° (1925) 93° (1939) 0.14" NA
May 25 53° 76° 35° (1979) 94° (1967) 0.14" NA
May 26 54° 77° 38° (1992) 95° (1985) 0.14" NA
May 27 54° 77° 34° (1992) 93° (2006) 0.15" NA
May 28 54° 78° 36° (1992) 95° (2006) 0.15" NA
May 29 55° 78° 34° (1965) 99° (1934) 0.15" NA
May 30 55° 78° 39° (1996) 98° (1934) 0.15" NA
May 31 55° 79° 41° (1972) 104° (1934) 0.15" NA
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