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
Mar 1 16° 39° 1° (1993) 62° (2000) 0.06" NA
Mar 2 16° 39° -3° (1995) 66° (1992) 0.06" NA
Mar 3 17° 40° -3° (1995) 66° (1992) 0.06" NA
Mar 4 17° 40° -14° (2002) 51° (2000) 0.07" NA
Mar 5 18° 41° 2° (2002) 66° (1992) 0.07" NA
Mar 6 18° 41° 11° (1985) 70° (2000) 0.07" NA
Mar 7 18° 41° -3° (1996) 71° (2000) 0.07" NA
Mar 8 19° 42° -4° (1996) 78° (2000) 0.07" NA
Mar 9 19° 42° -4° (1995) 78° (2000) 0.07" NA
Mar 10 20° 43° 0° (1996) 57° (1986) 0.07" NA
Mar 11 20° 43° 9° (1992) 63° (1985) 0.08" NA
Mar 12 21° 44° 7° (1999) 69° (1990) 0.08" NA
Mar 13 21° 44° 10° (1998) 78° (1990) 0.08" NA
Mar 14 21° 44° 4° (1993) 74° (2007) 0.08" NA
Mar 15 22° 45° 4° (1993) 73° (1995) 0.08" NA
Mar 16 22° 45° 7° (1997) 72° (1995) 0.08" NA
Mar 17 22° 46° 9° (1993) 72° (1995) 0.09" NA
Mar 18 23° 46° 7° (1993) 67° (1995) 0.09" NA
Mar 19 23° 47° 13° (1989) 66° (1995) 0.09" NA
Mar 20 24° 47° 11° (1986) 63° (1985) 0.09" NA
Mar 21 24° 48° 11° (1986) 62° (1994) 0.09" NA
Mar 22 24° 48° 13° (2002) 69° (1991) 0.09" NA
Mar 23 25° 48° 13° (2002) 71° (1994) 0.09" NA
Mar 24 25° 49° 17° (1995) 70° (1994) 0.1" NA
Mar 25 25° 49° NA (2001) 68° (1988) 0.1" NA
Mar 26 26° 50° 9° (1996) 77° (2007) 0.1" NA
Mar 27 26° 50° 9° (1996) 78° (1991) 0.1" NA
Mar 28 26° 51° 17° (1996) 76° (1989) 0.1" NA
Mar 29 27° 51° 19° (1994) 76° (1986) 0.1" NA
Mar 30 27° 52° 17° (1991) 85° (1986) 0.1" NA
Mar 31 27° 52° 14° (1987) 74° (1986) 0.1" NA
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