DeKalb, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 13° 28° -27° (1985) 63° (1967) 1.48" 10.1"
February 17° 33° -23° (1996) 69° (2000) 1.61" 7.3"
March 27° 45° -13° (2002) 84° (1986) 2.27" 4.3"
April 38° 59° 8° (1982) 92° (1986) 3.27" 0.9"
May 49° 70° 24° (1989) 95° (1985) 4.57" 0"
June 59° 80° 34° (1993) 101° (1988) 4.14" 0"
July 63° 83° 43° (1967) 102° (1995) 4.37" 0"
August 61° 81° 39° (1986) 103° (1988) 4.36" 0"
September 52° 75° 27° (1991) 94° (1990) 3.25" 0"
October 40° 62° 13° (1988) 89° (2007) 2.88" 0.1"
November 30° 47° -8° (1976) 76° (2000) 2.7" 1.1"
December 17° 32° -22° (1983) 66° (1970) 2.15" 8.1"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Apr 1 33° 52° 16° (1987) 84° (1986) 0.1" 0.1"
Apr 2 33° 53° 21° (1992) 83° (2010) 0.1" 0"
Apr 3 33° 53° 15° (1987) 79° (2003) 0.1" 0.1"
Apr 4 34° 54° 13° (1975) 77° (1996) 0.1" 0.1"
Apr 5 34° 54° 17° (1975) 77° (1991) 0.09" 0"
Apr 6 34° 55° 12° (1982) 82° (1988) 0.1" 0.1"
Apr 7 35° 55° 8° (1982) 78° (1991) 0.11" 0"
Apr 8 35° 56° 12° (1972) 79° (2001) 0.1" 0.1"
Apr 9 35° 56° 18° (1997) 77° (2001) 0.11" 0"
Apr 10 36° 57° 19° (1997) 83° (1977) 0.11" 0"
Apr 11 36° 57° 21° (1989) 83° (1977) 0.1" 0.1"
Apr 12 36° 58° 23° (1976) 82° (1971) 0.11" 0"
Apr 13 37° 58° 20° (1989) 79° (1977) 0.11" 0.1"
Apr 14 37° 59° 22° (1989) 84° (2006) 0.1" 0"
Apr 15 38° 59° 29° (1986) 85° (2003) 0.11" 0"
Apr 16 38° 59° 28° (1980) 87° (2002) 0.11" 0"
Apr 17 38° 60° 28° (1997) 87° (2002) 0.11" 0.1"
Apr 18 39° 60° 21° (1990) 87° (1985) 0.11" 0"
Apr 19 39° 61° 22° (1983) 90° (2002) 0.11" 0"
Apr 20 39° 61° 28° (1988) 84° (1985) 0.11" 0"
Apr 21 40° 62° 22° (1988) 89° (1987) 0.11" 0"
Apr 22 40° 62° 23° (1986) 91° (1980) 0.11" 0.1"
Apr 23 40° 62° 28° (1967) 91° (1980) 0.11" 0"
Apr 24 41° 63° 24° (1967) 81° (1990) 0.11" 0"
Apr 25 41° 63° 28° (1967) 85° (1990) 0.11" 0"
Apr 26 42° 64° 30° (1972) 92° (1986) 0.12" 0"
Apr 27 42° 64° 28° (1976) 91° (1986) 0.12" 0"
Apr 28 42° 64° 25° (1992) 88° (1986) 0.12" 0"
Apr 29 43° 65° 27° (1977) 87° (1970) 0.13" 0"
Apr 30 43° 65° 33° (1971) 87° (1970) 0.13" 0"
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