Hanover, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 27° -33° (1999) 59° (2002) 1.12" NA
February 10° 34° -35° (1996) 69° (2000) 1.24" NA
March 22° 45° -14° (2002) 85° (1986) 2.58" NA
April 32° 59° 12° (1997) 88° (1986) 3.38" NA
May 43° 71° 21° (2005) 92° (1991) 3.57" NA
June 53° 80° 33° (1993) 101° (1988) 5.07" NA
July 57° 84° 39° (1995) 101° (1989) 2.9" NA
August 55° 81° 37° (1986) 102° (1988) 4.45" NA
September 46° 74° 19° (1995) 94° (2000) 3.63" NA
October 34° 62° 10° (1988) 91° (1997) 2.51" NA
November 24° 46° -2° (1995) 77° (2000) 2.71" NA
December 12° 33° -29° (2000) 68° (1998) 1.77" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 57° 84° 47° (1990) 99° (1988) 0.11" NA
Aug 2 57° 83° 45° (1985) 100° (1988) 0.11" NA
Aug 3 57° 83° 44° (1986) 99° (1988) 0.12" NA
Aug 4 57° 83° 46° (1992) 99° (1988) 0.12" NA
Aug 5 57° 83° 41° (1994) 98° (1988) 0.13" NA
Aug 6 57° 83° 43° (1994) 91° (1996) 0.13" NA
Aug 7 57° 83° 45° (1990) 91° (1988) 0.13" NA
Aug 8 57° 83° 45° (1989) 94° (1988) 0.13" NA
Aug 9 56° 83° 47° (1989) 96° (1988) 0.14" NA
Aug 10 56° 83° 49° (1999) 92° (1992) 0.14" NA
Aug 11 56° 82° 49° (1986) 89° (2007) 0.14" NA
Aug 12 56° 82° 46° (1986) 94° (1988) 0.14" NA
Aug 13 56° 82° 45° (1992) 94° (1995) 0.15" NA
Aug 14 56° 82° 45° (2004) 92° (1995) 0.15" NA
Aug 15 55° 82° 43° (1992) 97° (1988) 0.15" NA
Aug 16 55° 82° 41° (1992) 99° (1988) 0.15" NA
Aug 17 55° 81° 42° (1992) 101° (1988) 0.15" NA
Aug 18 55° 81° 46° (1989) 102° (1988) 0.15" NA
Aug 19 55° 81° 46° (1989) 91° (1988) 0.15" NA
Aug 20 54° 81° 43° (1992) 86° (1995) 0.16" NA
Aug 21 54° 81° 43° (1992) 88° (1998) 0.16" NA
Aug 22 54° 81° 45° (1992) 92° (1995) 0.16" NA
Aug 23 54° 80° 45° (1987) 87° (1989) 0.16" NA
Aug 24 53° 80° 42° (1987) 88° (1993) 0.16" NA
Aug 25 53° 80° 43° (1987) 90° (1991) 0.16" NA
Aug 26 53° 80° 47° (1988) 92° (1991) 0.15" NA
Aug 27 53° 79° 48° (1988) 91° (1991) 0.15" NA
Aug 28 52° 79° 37° (1986) 93° (1990) 0.15" NA
Aug 29 52° 79° 41° (1986) 93° (1991) 0.15" NA
Aug 30 52° 79° 45° (1988) 88° (1995) 0.15" NA
Aug 31 51° 78° 42° (1992) 91° (1995) 0.15" NA
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