Half Day, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 16° 32° -27° (1982) 63° (1997) 1.81" 11.2"
February 19° 36° -20° (1996) 74° (2000) 1.8" 7.9"
March 28° 45° -5° (2002) 83° (1986) 2.37" 5.4"
April 38° 57° 10° (1982) 90° (2002) 3.58" 0.9"
May 47° 68° 28° (2004) 93° (1991) 4.01" 0"
June 57° 78° 37° (1993) 102° (1988) 3.67" 0"
July 63° 83° 45° (1982) 105° (1995) 3.63" 0"
August 62° 81° 42° (1986) 101° (1991) 4.77" 0"
September 54° 74° 30° (1995) 97° (1990) 3.48" 0"
October 42° 62° 24° (1992) 89° (2007) 3.24" 0.1"
November 33° 49° 6° (1986) 76° (1999) 3.06" 1.4"
December 20° 36° -20° (1983) 70° (2001) 2.4" 6.5"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 63° 82° 50° (1990) 100° (2006) 0.15" 0"
Aug 2 63° 82° 56° (1990) 101° (1988) 0.14" 0"
Aug 3 63° 82° 55° (1985) 101° (1991) 0.14" 0"
Aug 4 63° 82° 53° (1992) 99° (1988) 0.14" 0"
Aug 5 63° 82° 51° (1992) 98° (1988) 0.14" 0"
Aug 6 63° 82° 48° (1994) 93° (1996) 0.15" 0"
Aug 7 63° 82° 49° (1990) 95° (1984) 0.14" 0"
Aug 8 63° 82° 51° (1989) 97° (2001) 0.15" 0"
Aug 9 63° 82° 54° (1990) 99° (1988) 0.15" 0"
Aug 10 63° 82° 54° (1994) 96° (2001) 0.16" 0"
Aug 11 63° 82° 49° (1982) 93° (2002) 0.16" 0"
Aug 12 63° 82° 47° (2004) 95° (1988) 0.17" 0"
Aug 13 63° 82° 52° (1986) 96° (1988) 0.17" 0"
Aug 14 63° 82° 51° (1984) 97° (1995) 0.17" 0"
Aug 15 63° 82° 47° (2004) 97° (1995) 0.17" 0"
Aug 16 63° 82° 50° (1992) 93° (2000) 0.17" 0"
Aug 17 63° 82° 49° (1992) 101° (1988) 0.17" 0"
Aug 18 63° 81° 52° (2002) 100° (1988) 0.17" 0"
Aug 19 62° 81° 51° (1992) 92° (1990) 0.16" 0"
Aug 20 62° 81° 49° (1992) 97° (1983) 0.16" 0"
Aug 21 62° 81° 50° (1992) 93° (2003) 0.15" 0"
Aug 22 62° 81° 48° (2004) 98° (2003) 0.16" 0"
Aug 23 62° 81° 50° (2004) 93° (2007) 0.15" 0"
Aug 24 62° 81° 51° (1986) 92° (1993) 0.15" 0"
Aug 25 62° 81° 52° (1984) 90° (1994) 0.15" 0"
Aug 26 61° 81° 54° (1984) 94° (1994) 0.15" 0"
Aug 27 61° 80° 54° (1986) 95° (1993) 0.15" 0"
Aug 28 61° 80° 44° (1986) 95° (1990) 0.14" 0"
Aug 29 61° 80° 42° (1986) 96° (1984) 0.14" 0"
Aug 30 61° 80° 46° (1986) 96° (1984) 0.15" 0"
Aug 31 60° 80° 52° (1984) 93° (1995) 0.15" 0"
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