Thomasboro, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 16° 34° -27° (1985) 68° (1950) 2.07" NA
February 20° 39° -19° (1996) 72° (2000) 2.1" NA
March 30° 50° -13° (1980) 85° (1986) 2.98" NA
April 40° 64° 10° (1982) 90° (1986) 3.84" NA
May 51° 74° 26° (2002) 97° (1991) 4.36" NA
June 62° 84° 38° (1993) 104° (1988) 3.94" NA
July 65° 87° 43° (2001) 109° (1954) 4.59" NA
August 62° 85° 38° (1986) 102° (1988) 4.05" NA
September 54° 79° 29° (2001) 101° (1953) 3.09" NA
October 42° 66° 21° (2000) 93° (2007) 3.32" NA
November 32° 52° -5° (1950) 81° (1968) 3.47" NA
December 21° 38° -22° (1989) 70° (1998) 2.59" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 63° 86° 49° (1990) 99° (1988) 0.14" NA
Aug 2 63° 86° 49° (1998) 97° (1953) 0.14" NA
Aug 3 63° 86° 50° (1976) 100° (1991) 0.13" NA
Aug 4 63° 86° 50° (1976) 98° (2010) 0.14" NA
Aug 5 63° 86° 47° (1994) 98° (2002) 0.13" NA
Aug 6 63° 85° 46° (1989) 93° (1965) 0.13" NA
Aug 7 63° 85° 46° (1989) 94° (1979) 0.12" NA
Aug 8 63° 85° 47° (1989) 98° (1988) 0.13" NA
Aug 9 63° 85° 47° (1972) 96° (1980) 0.13" NA
Aug 10 63° 85° 50° (1994) 97° (1980) 0.13" NA
Aug 11 63° 85° 46° (1965) 95° (1980) 0.13" NA
Aug 12 63° 85° 47° (2004) 95° (1988) 0.12" NA
Aug 13 63° 85° 47° (2004) 97° (1995) 0.13" NA
Aug 14 63° 85° 45° (2004) 99° (2010) 0.13" NA
Aug 15 62° 85° 46° (2004) 98° (1988) 0.13" NA
Aug 16 62° 85° 46° (1979) 100° (1988) 0.13" NA
Aug 17 62° 85° 48° (1979) 102° (1988) 0.14" NA
Aug 18 62° 85° 50° (1981) 100° (1988) 0.14" NA
Aug 19 62° 85° 50° (2001) 95° (1995) 0.14" NA
Aug 20 62° 85° 47° (2001) 102° (1983) 0.14" NA
Aug 21 62° 85° 47° (1950) 100° (1983) 0.13" NA
Aug 22 62° 85° 49° (1997) 98° (2003) 0.13" NA
Aug 23 62° 85° 49° (1966) 98° (1948) 0.13" NA
Aug 24 62° 85° 48° (1987) 96° (1948) 0.12" NA
Aug 25 61° 85° 42° (1958) 97° (1948) 0.13" NA
Aug 26 61° 85° 50° (1968) 96° (1953) 0.13" NA
Aug 27 61° 85° 46° (1968) 98° (2003) 0.13" NA
Aug 28 61° 85° 42° (1986) 96° (1953) 0.12" NA
Aug 29 61° 84° 38° (1986) 97° (1953) 0.13" NA
Aug 30 60° 84° 43° (1986) 97° (2000) 0.13" NA
Aug 31 60° 84° 43° (1967) 98° (1953) 0.12" NA
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