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
Mar 1 22° 38° 5° (1978) 65° (2000) 0.07" 0.2"
Mar 2 22° 39° 0° (1980) 66° (1992) 0.06" 0.2"
Mar 3 22° 39° 0° (1996) 72° (1974) 0.07" 0.2"
Mar 4 23° 39° -13° (2002) 70° (1983) 0.07" 0.2"
Mar 5 23° 40° -9° (2002) 71° (1983) 0.07" 0.2"
Mar 6 23° 40° 5° (1982) 69° (2000) 0.07" 0.2"
Mar 7 24° 41° 1° (1996) 70° (2000) 0.07" 0.2"
Mar 8 24° 41° -4° (1996) 77° (2000) 0.07" 0.2"
Mar 9 25° 42° -3° (1996) 73° (2000) 0.06" 0.2"
Mar 10 25° 42° -2° (2003) 66° (1977) 0.07" 0.1"
Mar 11 25° 43° -2° (2003) 69° (1972) 0.07" 0.2"
Mar 12 26° 43° 6° (1993) 72° (1990) 0.07" 0.2"
Mar 13 26° 44° 7° (1998) 77° (1990) 0.07" 0.1"
Mar 14 26° 44° 6° (1993) 72° (2007) 0.06" 0.2"
Mar 15 27° 44° 7° (1979) 74° (1995) 0.07" 0.1"
Mar 16 27° 45° 10° (1997) 74° (1995) 0.07" 0.2"
Mar 17 27° 45° 10° (1967) 71° (1966) 0.07" 0.1"
Mar 18 28° 46° 9° (1967) 73° (2003) 0.08" 0.1"
Mar 19 28° 46° 14° (1989) 74° (1976) 0.07" 0.1"
Mar 20 29° 47° 10° (1986) 71° (1976) 0.08" 0.1"
Mar 21 29° 47° 11° (1986) 71° (1991) 0.07" 0.1"
Mar 22 29° 48° 12° (2002) 70° (1997) 0.08" 0.1"
Mar 23 30° 48° 12° (1974) 68° (1988) 0.08" 0.1"
Mar 24 30° 49° 3° (1974) 74° (1994) 0.07" 0.1"
Mar 25 30° 49° 10° (1974) 71° (1967) 0.08" 0.1"
Mar 26 31° 50° 13° (1996) 77° (2007) 0.08" 0.1"
Mar 27 31° 50° 9° (1969) 77° (2007) 0.08" 0.1"
Mar 28 31° 51° 8° (1970) 77° (1968) 0.08" 0.1"
Mar 29 32° 51° 12° (1969) 76° (1986) 0.08" 0"
Mar 30 32° 52° 8° (1969) 84° (1986) 0.09" 0.1"
Mar 31 32° 52° 10° (1969) 81° (1981) 0.09" 0.1"
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