Cahokia, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 20° 38° -19° (1977) 78° (1986) 2.18" NA
February 24° 45° -16° (1982) 81° (2000) 2.47" NA
March 35° 55° -7° (1978) 89° (1985) 3.68" NA
April 46° 67° 18° (1990) 93° (2006) 3.87" NA
May 55° 76° 32° (1989) 94° (2006) 3.87" NA
June 64° 84° 42° (1972) 103° (1978) 3.69" NA
July 68° 89° 44° (1972) 106° (1980) 3.97" NA
August 66° 87° 41° (1986) 105° (2007) 3.68" NA
September 58° 80° 32° (1989) 102° (1990) 3.19" NA
October 47° 69° 22° (1980) 94° (2006) 3.04" NA
November 36° 55° 3° (1970) 85° (1989) 3.73" NA
December 26° 43° -19° (1989) 79° (1970) 2.96" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Mar 1 29° 50° 16° (1984) 78° (1976) 0.1" NA
Mar 2 30° 50° 18° (2005) 79° (1992) 0.11" NA
Mar 3 30° 50° 11° (2002) 80° (1976) 0.11" NA
Mar 4 30° 51° 2° (1978) 81° (1983) 0.11" NA
Mar 5 31° 51° -7° (1978) 78° (1974) 0.11" NA
Mar 6 31° 52° 9° (1978) 73° (1994) 0.11" NA
Mar 7 32° 52° 5° (1989) 79° (1974) 0.11" NA
Mar 8 32° 52° 4° (1996) 85° (1974) 0.11" NA
Mar 9 33° 53° 12° (1996) 82° (1974) 0.11" NA
Mar 10 33° 53° 14° (1984) 84° (1990) 0.11" NA
Mar 11 33° 53° 17° (1998) 80° (1990) 0.12" NA
Mar 12 34° 54° 10° (1998) 83° (1990) 0.12" NA
Mar 13 34° 54° 13° (1988) 83° (1972) 0.12" NA
Mar 14 34° 55° 12° (1993) 78° (2007) 0.12" NA
Mar 15 35° 55° 14° (1988) 81° (1971) 0.12" NA
Mar 16 35° 55° 18° (1970) 76° (1995) 0.12" NA
Mar 17 36° 56° 22° (1993) 81° (1982) 0.12" NA
Mar 18 36° 56° 20° (1980) 76° (1995) 0.12" NA
Mar 19 36° 57° 21° (1989) 75° (1976) 0.12" NA
Mar 20 37° 57° 19° (1970) 73° (1982) 0.12" NA
Mar 21 37° 57° 22° (1970) 82° (1991) 0.12" NA
Mar 22 37° 58° 18° (2002) 87° (1997) 0.12" NA
Mar 23 38° 58° 20° (1990) 81° (1994) 0.12" NA
Mar 24 38° 58° 0° (1974) 78° (1994) 0.12" NA
Mar 25 38° 59° 10° (1974) 81° (2007) 0.13" NA
Mar 26 39° 59° 18° (1974) 86° (1991) 0.13" NA
Mar 27 39° 60° 19° (2001) 83° (1991) 0.13" NA
Mar 28 40° 60° 25° (1982) 89° (1985) 0.13" NA
Mar 29 40° 60° 24° (1988) 88° (1986) 0.13" NA
Mar 30 40° 61° 24° (1987) 86° (1986) 0.13" NA
Mar 31 41° 61° 24° (1994) 84° (1986) 0.13" NA
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