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
Jul 1 57° 83° 40° (1988) 94° (1991) 0.13" NA
Jul 2 57° 83° 39° (1995) 89° (1989) 0.12" NA
Jul 3 57° 83° 43° (1995) 90° (1989) 0.12" NA
Jul 4 57° 83° 49° (2005) 92° (1989) 0.11" NA
Jul 5 57° 83° 45° (1997) 94° (1990) 0.11" NA
Jul 6 57° 83° 47° (1992) 97° (1988) 0.11" NA
Jul 7 57° 84° 45° (1997) 96° (1988) 0.1" NA
Jul 8 57° 84° 45° (1995) 96° (1989) 0.1" NA
Jul 9 57° 84° 49° (1996) 95° (1988) 0.09" NA
Jul 10 57° 84° 44° (1996) 98° (1989) 0.09" NA
Jul 11 57° 84° 48° (1996) 101° (1989) 0.09" NA
Jul 12 57° 84° 50° (1999) 92° (1987) 0.09" NA
Jul 13 57° 84° 50° (1999) 94° (1995) 0.08" NA
Jul 14 57° 84° 47° (1987) 99° (1995) 0.08" NA
Jul 15 57° 84° 49° (1987) 96° (1995) 0.08" NA
Jul 16 57° 84° 49° (1985) 101° (1988) 0.08" NA
Jul 17 57° 84° 49° (1985) 95° (2005) 0.08" NA
Jul 18 57° 84° 52° (1989) 94° (1988) 0.08" NA
Jul 19 57° 84° 49° (1995) 93° (1986) 0.08" NA
Jul 20 58° 84° 53° (1995) 95° (1991) 0.08" NA
Jul 21 58° 84° 49° (1995) 94° (1991) 0.08" NA
Jul 22 58° 84° 50° (2000) 96° (2001) 0.08" NA
Jul 23 57° 84° 47° (1985) 93° (1999) 0.08" NA
Jul 24 57° 84° 49° (1991) 98° (2005) 0.08" NA
Jul 25 57° 84° 46° (1991) 95° (1999) 0.09" NA
Jul 26 57° 84° 46° (1991) 93° (1987) 0.09" NA
Jul 27 57° 84° 47° (1991) 95° (1987) 0.09" NA
Jul 28 57° 84° 46° (1994) 95° (1988) 0.1" NA
Jul 29 57° 84° 47° (1994) 96° (1999) 0.1" NA
Jul 30 57° 84° 47° (1991) 97° (1999) 0.1" NA
Jul 31 57° 84° 46° (1997) 97° (1999) 0.11" NA
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