DeKalb, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 10° 27° -27° (1985) 63° (1967) 1.54" 9.1"
February 16° 32° -23° (1996) 69° (2000) 1.4" 7.1"
March 26° 44° -13° (2002) 84° (1986) 2.46" 4.6"
April 37° 58° 8° (1982) 92° (1986) 3.52" 1.4"
May 48° 70° 24° (1989) 95° (1985) 4.21" 0.1"
June 58° 80° 34° (1993) 101° (1988) 4.49" 0"
July 63° 84° 43° (1967) 102° (1995) 4.22" 0"
August 61° 81° 39° (1986) 103° (1988) 4.48" 0"
September 51° 74° 27° (1991) 94° (1990) 3.51" 0"
October 40° 62° 13° (1988) 89° (2007) 2.6" 0.2"
November 28° 45° -8° (1976) 76° (2000) 2.82" 2.1"
December 17° 32° -22° (1983) 66° (1970) 2.13" 8.9"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jul 1 61° 83° 46° (1988) 96° (1970) 0.14" NA
Jul 2 62° 83° 49° (2001) 95° (1966) 0.14" NA
Jul 3 62° 83° 48° (1968) 94° (1966) 0.14" NA
Jul 4 62° 83° 46° (1972) 94° (2002) 0.14" NA
Jul 5 62° 83° 45° (1972) 96° (1990) 0.14" NA
Jul 6 62° 83° 43° (1967) 96° (1988) 0.14" NA
Jul 7 62° 83° 49° (1983) 97° (1988) 0.14" NA
Jul 8 62° 83° 51° (1972) 96° (1988) 0.14" NA
Jul 9 62° 84° 55° (2004) 95° (1974) 0.14" NA
Jul 10 62° 84° 47° (1968) 101° (1966) 0.14" NA
Jul 11 62° 84° 49° (1968) 101° (1966) 0.14" NA
Jul 12 63° 84° 50° (1975) 97° (1970) 0.13" NA
Jul 13 63° 84° 49° (1975) 96° (1974) 0.13" NA
Jul 14 63° 84° 51° (1967) 102° (1995) 0.13" NA
Jul 15 63° 84° 52° (1967) 98° (1988) 0.13" NA
Jul 16 63° 84° 53° (1967) 100° (1988) 0.13" NA
Jul 17 63° 84° 47° (1976) 93° (1997) 0.13" NA
Jul 18 63° 84° 51° (1979) 97° (1966) 0.13" NA
Jul 19 63° 84° 54° (1984) 97° (1991) 0.13" NA
Jul 20 63° 84° 51° (1970) 95° (1980) 0.13" NA
Jul 21 63° 84° 49° (1966) 96° (1983) 0.13" NA
Jul 22 63° 84° 51° (1970) 99° (1991) 0.13" NA
Jul 23 63° 84° 53° (1970) 96° (1983) 0.13" NA
Jul 24 63° 84° 54° (1974) 93° (1999) 0.14" NA
Jul 25 63° 84° 52° (1991) 99° (2005) 0.14" NA
Jul 26 63° 84° 49° (1991) 94° (1999) 0.14" NA
Jul 27 63° 84° 49° (1971) 96° (1997) 0.14" NA
Jul 28 63° 83° 52° (1972) 98° (1983) 0.14" NA
Jul 29 63° 83° 48° (1981) 97° (1983) 0.14" NA
Jul 30 63° 83° 48° (1971) 96° (1988) 0.14" NA
Jul 31 63° 83° 49° (1971) 99° (1999) 0.14" NA
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