Thomson, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 13° 30° -23° (1999) 62° (1981) 1.38" 7.4"
February 17° 35° -26° (1996) 68° (1976) 1.55" 5.3"
March 28° 46° -14° (1962) 82° (1986) 2.36" 4.7"
April 40° 60° 13° (1982) 91° (1980) 3.01" 0.9"
May 50° 72° 30° (2005) 92° (1991) 3.69" 0"
June 61° 81° 40° (1993) 98° (1988) 4.16" 0"
July 65° 85° 46° (2000) 102° (2005) 3.3" 0"
August 63° 83° 42° (1999) 102° (1988) 4.33" 0"
September 54° 76° 30° (1991) 96° (1985) 2.83" 0"
October 42° 63° 13° (1952) 90° (2006) 2.82" 0"
November 31° 48° -5° (1977) 82° (2000) 2.47" 1"
December 19° 34° -22° (2000) 66° (2001) 1.77" 6"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jun 1 56° 76° 45° (1993) 91° (1988) 0.13" NA
Jun 2 56° 77° 42° (1969) 91° (1988) 0.13" NA
Jun 3 57° 77° 43° (1957) 93° (1972) 0.14" NA
Jun 4 57° 77° 42° (1950) 89° (1953) 0.13" NA
Jun 5 57° 78° 40° (1993) 88° (1971) 0.15" NA
Jun 6 58° 78° 42° (1993) 90° (1952) 0.14" NA
Jun 7 58° 78° 44° (1998) 94° (1963) 0.14" NA
Jun 8 58° 79° 44° (1949) 93° (1963) 0.14" NA
Jun 9 59° 79° 42° (1977) 92° (1956) 0.13" NA
Jun 10 59° 79° 44° (1972) 93° (1956) 0.14" NA
Jun 11 59° 80° 41° (1972) 91° (1956) 0.13" NA
Jun 12 60° 80° 49° (1988) 95° (2001) 0.14" NA
Jun 13 60° 80° 45° (1962) 92° (1952) 0.14" NA
Jun 14 60° 81° 50° (1978) 92° (1954) 0.14" NA
Jun 15 61° 81° 49° (1999) 92° (1994) 0.14" NA
Jun 16 61° 81° 46° (1961) 92° (1954) 0.14" NA
Jun 17 61° 82° 47° (2000) 94° (1994) 0.14" NA
Jun 18 62° 82° 46° (1950) 95° (1954) 0.13" NA
Jun 19 62° 82° 46° (2000) 97° (1994) 0.14" NA
Jun 20 62° 82° 45° (2003) 95° (1994) 0.15" NA
Jun 21 63° 83° 45° (1992) 98° (1988) 0.14" NA
Jun 22 63° 83° 46° (1963) 98° (1988) 0.15" NA
Jun 23 63° 83° 48° (1961) 92° (1983) 0.14" NA
Jun 24 63° 83° 44° (2001) 98° (2009) 0.14" NA
Jun 25 63° 83° 48° (2001) 95° (1954) 0.15" NA
Jun 26 64° 84° 50° (1979) 97° (1988) 0.14" NA
Jun 27 64° 84° 52° (1968) 97° (1971) 0.14" NA
Jun 28 64° 84° 47° (2000) 94° (1952) 0.14" NA
Jun 29 64° 84° 47° (2000) 94° (1970) 0.13" NA
Jun 30 64° 84° 45° (2000) 94° (1963) 0.13" NA
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