Ganntown, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 25° 43° -20° (1977) 70° (1986) 3.37" 4.7"
February 29° 50° -10° (1996) 78° (1996) 3.39" 3.4"
March 38° 60° -3° (1978) 83° (1986) 4.6" 1.7"
April 46° 71° 21° (1990) 89° (1987) 4.74" 0.2"
May 55° 79° 29° (1976) 93° (2006) 5.16" 0"
June 63° 87° 39° (1972) 100° (1988) 4.1" 0"
July 67° 90° 46° (1971) 101° (1999) 3.75" 0"
August 65° 90° 46° (1986) 103° (2007) 3.6" 0"
September 58° 84° 32° (1983) 100° (1999) 3.26" 0"
October 47° 73° 17° (1981) 93° (2007) 3.16" 0"
November 39° 59° 6° (1976) 83° (2000) 4.71" 0.1"
December 29° 47° -14° (1989) 77° (1982) 4.4" 1"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jun 1 60° 83° 39° (1972) 93° (2002) 0.15" NA
Jun 2 60° 84° 46° (1972) 94° (2002) 0.15" NA
Jun 3 60° 84° 45° (1969) 94° (1998) 0.15" NA
Jun 4 60° 84° 48° (1988) 95° (2002) 0.15" NA
Jun 5 61° 84° 43° (2003) 95° (2002) 0.15" NA
Jun 6 61° 85° 47° (1988) 94° (1977) 0.15" NA
Jun 7 61° 85° 45° (1998) 93° (1980) 0.14" NA
Jun 8 62° 85° 47° (1977) 93° (1988) 0.14" NA
Jun 9 62° 86° 46° (1980) 94° (1999) 0.14" NA
Jun 10 62° 86° 47° (1988) 93° (1999) 0.14" NA
Jun 11 62° 86° 43° (1988) 95° (1977) 0.14" NA
Jun 12 63° 86° 49° (1980) 95° (1977) 0.14" NA
Jun 13 63° 86° 46° (1985) 93° (1977) 0.14" NA
Jun 14 63° 87° 48° (1985) 93° (1980) 0.14" NA
Jun 15 63° 87° 52° (1978) 94° (1987) 0.14" NA
Jun 16 63° 87° 48° (1969) 93° (1988) 0.13" NA
Jun 17 64° 87° 47° (1974) 94° (1994) 0.13" NA
Jun 18 64° 87° 52° (1974) 94° (1994) 0.13" NA
Jun 19 64° 88° 56° (1986) 95° (1994) 0.13" NA
Jun 20 64° 88° 48° (1980) 95° (1994) 0.13" NA
Jun 21 65° 88° 46° (1992) 96° (1988) 0.13" NA
Jun 22 65° 88° 41° (1992) 98° (1988) 0.13" NA
Jun 23 65° 88° 45° (1972) 100° (1988) 0.13" NA
Jun 24 65° 88° 44° (1972) 100° (1988) 0.13" NA
Jun 25 65° 89° 48° (1979) 100° (1988) 0.13" NA
Jun 26 65° 89° 50° (1974) 100° (1988) 0.13" NA
Jun 27 66° 89° 50° (2003) 96° (1978) 0.13" NA
Jun 28 66° 89° 51° (1968) 98° (1978) 0.13" NA
Jun 29 66° 89° 53° (1974) 98° (1978) 0.13" NA
Jun 30 66° 89° 55° (2000) 96° (1978) 0.12" NA
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