Thomasboro, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 14° 33° -27° (1985) 68° (1950) 1.72" NA
February 19° 38° -19° (1996) 72° (2000) 1.78" NA
March 29° 50° -13° (1980) 85° (1986) 3.06" NA
April 39° 63° 10° (1982) 90° (1986) 3.64" NA
May 50° 75° 26° (2002) 97° (1991) 4.21" NA
June 60° 84° 38° (1993) 104° (1988) 3.88" NA
July 64° 87° 43° (2001) 109° (1954) 4.39" NA
August 61° 85° 38° (1986) 102° (1988) 4.35" NA
September 53° 79° 29° (2001) 101° (1953) 2.95" NA
October 41° 67° 21° (2000) 93° (2007) 2.91" NA
November 31° 51° -5° (1950) 81° (1968) 3.17" NA
December 20° 38° -22° (1989) 70° (1998) 2.69" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Oct 1 47° 74° 32° (1985) 90° (1971) 0.09" NA
Oct 2 46° 73° 27° (2003) 89° (1953) 0.09" NA
Oct 3 46° 73° 27° (1974) 91° (1954) 0.09" NA
Oct 4 46° 72° 28° (1987) 90° (2006) 0.09" NA
Oct 5 45° 72° 30° (1980) 87° (2006) 0.09" NA
Oct 6 45° 71° 28° (1952) 90° (2007) 0.09" NA
Oct 7 44° 71° 25° (2000) 93° (2007) 0.09" NA
Oct 8 44° 70° 23° (1987) 92° (2007) 0.09" NA
Oct 9 44° 70° 21° (2000) 90° (2007) 0.09" NA
Oct 10 43° 70° 26° (2000) 85° (1962) 0.09" NA
Oct 11 43° 69° 27° (1964) 86° (1962) 0.09" NA
Oct 12 42° 69° 28° (1987) 86° (1961) 0.09" NA
Oct 13 42° 68° 27° (1987) 85° (1989) 0.09" NA
Oct 14 42° 68° 25° (2002) 86° (1975) 0.09" NA
Oct 15 41° 67° 27° (2002) 86° (1953) 0.09" NA
Oct 16 41° 67° 24° (2002) 84° (1956) 0.09" NA
Oct 17 41° 66° 23° (2001) 87° (1950) 0.09" NA
Oct 18 40° 66° 24° (2001) 85° (1953) 0.09" NA
Oct 19 40° 65° 22° (1992) 86° (1950) 0.09" NA
Oct 20 40° 65° 23° (1992) 86° (1953) 0.1" NA
Oct 21 39° 64° 25° (1952) 85° (1953) 0.1" NA
Oct 22 39° 64° 23° (1976) 85° (1953) 0.1" NA
Oct 23 38° 63° 23° (1976) 81° (1963) 0.1" NA
Oct 24 38° 63° 21° (1981) 80° (1991) 0.1" NA
Oct 25 38° 62° 22° (1981) 81° (1991) 0.1" NA
Oct 26 37° 61° 22° (1962) 80° (1963) 0.1" NA
Oct 27 37° 61° 25° (2001) 80° (1998) 0.1" NA
Oct 28 37° 60° 24° (1969) 79° (1998) 0.1" NA
Oct 29 37° 60° 23° (1988) 82° (1999) 0.1" NA
Oct 30 36° 59° 24° (1988) 85° (1950) 0.1" NA
Oct 31 36° 59° 22° (1993) 84° (1950) 0.1" NA
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