Saint Peters, Missouri
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 19° 38° -20° (1985) 73° (1986) 1.72" NA
February 24° 44° -17° (1982) 78° (1981) 1.95" NA
March 32° 55° 2° (1980) 88° (1985) 3.45" NA
April 42° 67° 22° (1982) 93° (1986) 3.94" NA
May 52° 76° 34° (1980) 93° (1991) 4.17" NA
June 62° 86° 45° (1993) 104° (1988) 3.73" NA
July 68° 90° 48° (1981) 106° (1980) 4.18" NA
August 66° 89° 45° (1986) 107° (1984) 3.19" NA
September 57° 81° 35° (1989) 102° (1984) 2.92" NA
October 45° 70° 22° (1980) 93° (1980) 2.75" NA
November 36° 55° 4° (1991) 84° (1989) 3.42" NA
December 25° 42° -18° (1989) 75° (1991) 2.86" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 62° 86° 53° (1987) 96° (1980) 0.1" NA
Sep 2 62° 85° 53° (1987) 102° (1984) 0.1" NA
Sep 3 61° 85° 55° (1982) 95° (1984) 0.1" NA
Sep 4 61° 85° 52° (1984) 96° (1990) 0.1" NA
Sep 5 61° 84° 55° (1982) 98° (1990) 0.1" NA
Sep 6 61° 84° 46° (1988) 100° (1990) 0.1" NA
Sep 7 60° 84° 47° (1988) 100° (1990) 0.1" NA
Sep 8 60° 84° 42° (1986) 95° (1980) 0.1" NA
Sep 9 60° 83° 43° (1986) 98° (1980) 0.1" NA
Sep 10 59° 83° 53° (1981) 94° (1983) 0.1" NA
Sep 11 59° 83° 48° (1980) 95° (1983) 0.1" NA
Sep 12 59° 82° 50° (1980) 94° (1991) 0.1" NA
Sep 13 58° 82° 52° (1985) 97° (1980) 0.1" NA
Sep 14 58° 82° 50° (1983) 94° (1984) 0.1" NA
Sep 15 57° 81° 48° (1984) 95° (1991) 0.1" NA
Sep 16 57° 81° 44° (1984) 95° (1991) 0.1" NA
Sep 17 57° 81° 44° (1981) 91° (1988) 0.1" NA
Sep 18 56° 80° 38° (1981) 95° (1983) 0.1" NA
Sep 19 56° 80° 39° (1991) 92° (1983) 0.1" NA
Sep 20 56° 80° 39° (1991) 89° (1983) 0.1" NA
Sep 21 55° 79° 38° (1991) 92° (1980) 0.1" NA
Sep 22 55° 79° 39° (1983) 91° (1980) 0.1" NA
Sep 23 54° 79° 36° (1983) 92° (1988) 0.09" NA
Sep 24 54° 78° 35° (1983) 82° (1984) 0.09" NA
Sep 25 54° 78° 35° (1989) 90° (1986) 0.09" NA
Sep 26 53° 78° 39° (1980) 89° (1986) 0.09" NA
Sep 27 53° 77° 39° (1984) 88° (1981) 0.09" NA
Sep 28 52° 77° 40° (1984) 89° (1986) 0.09" NA
Sep 29 52° 77° 40° (1992) 91° (1986) 0.09" NA
Sep 30 51° 76° 35° (1984) 88° (1981) 0.09" NA
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