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
Jul 1 62° 82° 45° (1982) 95° (2002) 0.11" 0"
Jul 2 62° 82° 48° (1988) 96° (1991) 0.11" 0"
Jul 3 62° 82° 50° (1986) 94° (2002) 0.11" 0"
Jul 4 62° 82° 50° (1996) 97° (2002) 0.11" 0"
Jul 5 63° 83° 49° (1997) 98° (1990) 0.11" 0"
Jul 6 63° 83° 47° (1983) 97° (1994) 0.12" 0"
Jul 7 63° 83° 47° (1983) 98° (1988) 0.12" 0"
Jul 8 63° 83° 48° (1984) 95° (1988) 0.11" 0"
Jul 9 63° 83° 50° (2000) 97° (1988) 0.12" 0"
Jul 10 63° 83° 48° (1997) 98° (1989) 0.12" 0"
Jul 11 63° 83° 50° (1996) 100° (1989) 0.12" 0"
Jul 12 63° 83° 49° (1996) 93° (1987) 0.12" 0"
Jul 13 63° 83° 53° (2007) 95° (1995) 0.12" 0"
Jul 14 63° 83° 52° (2002) 105° (1995) 0.11" 0"
Jul 15 63° 83° 53° (1991) 102° (1995) 0.11" 0"
Jul 16 63° 83° 52° (1987) 103° (1988) 0.12" 0"
Jul 17 64° 83° 53° (1985) 96° (1997) 0.11" 0"
Jul 18 64° 83° 57° (1984) 98° (2006) 0.11" 0"
Jul 19 64° 83° 53° (1984) 98° (1991) 0.12" 0"
Jul 20 64° 83° 55° (2000) 100° (1991) 0.11" 0"
Jul 21 64° 83° 51° (2007) 99° (1991) 0.11" 0"
Jul 22 64° 83° 52° (1992) 101° (2002) 0.13" 0"
Jul 23 64° 83° 53° (2000) 100° (1991) 0.12" 0"
Jul 24 63° 83° 51° (2000) 96° (1999) 0.12" 0"
Jul 25 63° 83° 54° (2003) 103° (2005) 0.12" 0"
Jul 26 63° 83° 54° (1991) 93° (1999) 0.13" 0"
Jul 27 63° 82° 51° (1991) 96° (1997) 0.12" 0"
Jul 28 63° 82° 52° (2005) 92° (1988) 0.12" 0"
Jul 29 63° 82° 51° (2003) 98° (1983) 0.12" 0"
Jul 30 63° 82° 52° (1984) 98° (1999) 0.12" 0"
Jul 31 63° 82° 54° (1997) 104° (1999) 0.13" 0"
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