Granite City, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 21° 38° -10° (1977) 74° (1970) 2.01" NA
February 26° 45° -13° (1996) 79° (1976) 2.06" NA
March 36° 55° 2° (1978) 88° (1997) 3.7" NA
April 47° 66° 20° (1975) 93° (2006) 3.82" NA
May 57° 77° 34° (1978) 95° (1996) 3.92" NA
June 66° 86° 40° (1976) 102° (1988) 3.73" NA
July 71° 91° 53° (1975) 105° (1999) 3.78" NA
August 69° 88° 51° (1992) 104° (2003) 3.7" NA
September 61° 81° 35° (1969) 99° (1990) 2.69" NA
October 49° 69° 28° (1987) 94° (2006) 2.81" NA
November 38° 54° 7° (1976) 83° (2003) 4.06" NA
December 27° 42° -17° (1989) 78° (1970) 2.56" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Mar 1 31° 49° 17° (1978) 81° (1972) 0.1" NA
Mar 2 31° 50° 18° (1995) 78° (1976) 0.1" NA
Mar 3 32° 50° 15° (1996) 84° (1974) 0.1" NA
Mar 4 32° 50° 11° (1978) 78° (1992) 0.1" NA
Mar 5 33° 51° 2° (1978) 78° (1974) 0.1" NA
Mar 6 33° 51° 6° (1978) 83° (1974) 0.11" NA
Mar 7 33° 52° 13° (1996) 82° (1974) 0.11" NA
Mar 8 34° 52° 4° (1996) 78° (1974) 0.11" NA
Mar 9 34° 52° 6° (1996) 75° (1974) 0.11" NA
Mar 10 34° 53° 14° (1998) 77° (1990) 0.11" NA
Mar 11 35° 53° 16° (1969) 83° (1990) 0.12" NA
Mar 12 35° 53° 8° (1998) 83° (1972) 0.12" NA
Mar 13 35° 54° 14° (1993) 83° (1990) 0.12" NA
Mar 14 36° 54° 12° (1993) 80° (1971) 0.12" NA
Mar 15 36° 55° 17° (1993) 80° (1971) 0.12" NA
Mar 16 37° 55° 23° (1988) 76° (1995) 0.12" NA
Mar 17 37° 55° 22° (1993) 76° (1995) 0.12" NA
Mar 18 37° 56° 22° (1993) 81° (1989) 0.12" NA
Mar 19 38° 56° 26° (1989) 77° (1969) 0.13" NA
Mar 20 38° 56° 24° (1990) 75° (1976) 0.13" NA
Mar 21 38° 57° 27° (1974) 77° (1972) 0.13" NA
Mar 22 39° 57° 23° (2006) 88° (1997) 0.13" NA
Mar 23 39° 57° 25° (1971) 81° (1988) 0.13" NA
Mar 24 39° 58° 12° (1974) 82° (1994) 0.13" NA
Mar 25 40° 58° 14° (1974) 78° (2003) 0.13" NA
Mar 26 40° 59° 19° (1975) 83° (2007) 0.13" NA
Mar 27 40° 59° 24° (1996) 87° (1991) 0.13" NA
Mar 28 41° 59° 31° (1970) 83° (1991) 0.13" NA
Mar 29 41° 60° 25° (1969) 80° (1988) 0.13" NA
Mar 30 41° 60° 25° (1969) 81° (1998) 0.13" NA
Mar 31 42° 61° 25° (1969) 79° (2005) 0.13" NA
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