Affton, Missouri
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 24° 40° -10° (1977) 74° (1970) 2.45" NA
February 28° 45° -13° (1996) 79° (1976) 2.48" NA
March 37° 55° 2° (1978) 88° (1997) 3.36" NA
April 47° 67° 20° (1975) 93° (2006) 4.1" NA
May 57° 77° 34° (1978) 95° (1996) 4.8" NA
June 67° 85° 40° (1976) 102° (1988) 4.34" NA
July 71° 89° 53° (1975) 105° (1999) 4.19" NA
August 70° 88° 51° (1992) 104° (2003) 3.41" NA
September 61° 81° 35° (1969) 99° (1990) 3.38" NA
October 50° 69° 28° (1987) 94° (2006) 3.43" NA
November 39° 56° 7° (1976) 83° (2003) 4.22" NA
December 28° 43° -17° (1989) 78° (1970) 2.96" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Feb 1 25° 42° 1° (1996) 74° (1989) 0.07" NA
Feb 2 25° 42° -1° (1996) 60° (2003) 0.08" NA
Feb 3 25° 42° -13° (1996) 67° (2003) 0.07" NA
Feb 4 25° 42° -10° (1996) 67° (1992) 0.08" NA
Feb 5 25° 43° -4° (1996) 75° (2008) 0.08" NA
Feb 6 26° 43° 0° (1988) 60° (1974) 0.08" NA
Feb 7 26° 43° 0° (1978) 64° (2009) 0.08" NA
Feb 8 26° 43° 4° (1971) 68° (2009) 0.08" NA
Feb 9 26° 43° 1° (1978) 68° (1990) 0.09" NA
Feb 10 27° 44° 1° (1978) 70° (2009) 0.09" NA
Feb 11 27° 44° 4° (1988) 69° (1999) 0.08" NA
Feb 12 27° 44° -4° (1988) 71° (1999) 0.09" NA
Feb 13 27° 45° -2° (1988) 69° (1990) 0.09" NA
Feb 14 28° 45° 13° (2007) 67° (1990) 0.09" NA
Feb 15 28° 45° 7° (2007) 69° (1972) 0.08" NA
Feb 16 28° 45° 4° (2007) 77° (2005) 0.08" NA
Feb 17 28° 46° 6° (2007) 74° (1976) 0.08" NA
Feb 18 29° 46° 0° (1993) 72° (1971) 0.08" NA
Feb 19 29° 46° 6° (2006) 72° (1991) 0.09" NA
Feb 20 29° 47° 8° (1978) 70° (1971) 0.09" NA
Feb 21 29° 47° 8° (1978) 74° (1996) 0.09" NA
Feb 22 30° 47° 9° (1978) 72° (1991) 0.1" NA
Feb 23 30° 48° 7° (1989) 78° (1995) 0.09" NA
Feb 24 30° 48° 7° (1989) 76° (1996) 0.1" NA
Feb 25 31° 48° 7° (1989) 78° (1976) 0.09" NA
Feb 26 31° 49° 11° (2003) 76° (1996) 0.09" NA
Feb 27 31° 49° 12° (1993) 77° (1996) 0.09" NA
Feb 28 32° 49° 12° (1993) 79° (1976) 0.09" NA
Feb 29 32° 50° 16° (1996) 79° (1972) 0.09" NA
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