Saint Peters, Missouri
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 20° 39° -20° (1985) 73° (1986) 2.18" 4.2"
February 24° 45° -17° (1982) 78° (1981) 2.47" 4.6"
March 33° 55° 2° (1980) 88° (1985) 3.33" 1.7"
April 43° 67° 22° (1982) 93° (1986) 3.98" 0.2"
May 53° 76° 34° (1980) 93° (1991) 4.92" 0"
June 63° 85° 45° (1993) 104° (1988) 3.89" 0"
July 67° 89° 48° (1981) 106° (1980) 4.33" 0"
August 65° 88° 45° (1986) 107° (1984) 3.13" 0"
September 56° 80° 35° (1989) 102° (1984) 3.25" 0"
October 45° 69° 22° (1980) 93° (1980) 3.18" 0.1"
November 35° 56° 4° (1991) 84° (1989) 3.67" 0.8"
December 24° 42° -18° (1989) 75° (1991) 3.05" 4"
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) 0.11" 0"
Sep 2 62° 86° 53° (1987) 102° (1984) 0.11" 0"
Sep 3 61° 85° 55° (1982) 95° (1984) 0.11" 0"
Sep 4 61° 85° 52° (1984) 96° (1990) 0.1" 0"
Sep 5 61° 85° 55° (1982) 98° (1990) 0.11" 0"
Sep 6 60° 84° 46° (1988) 100° (1990) 0.11" 0"
Sep 7 60° 84° 47° (1988) 100° (1990) 0.12" 0"
Sep 8 60° 84° 42° (1986) 95° (1980) 0.11" 0"
Sep 9 59° 83° 43° (1986) 98° (1980) 0.11" 0"
Sep 10 59° 83° 53° (1981) 94° (1983) 0.12" 0"
Sep 11 58° 83° 48° (1980) 95° (1983) 0.1" 0"
Sep 12 58° 82° 50° (1980) 94° (1991) 0.11" 0"
Sep 13 57° 82° 52° (1985) 97° (1980) 0.1" 0"
Sep 14 57° 81° 50° (1983) 94° (1984) 0.11" 0"
Sep 15 57° 81° 48° (1984) 95° (1991) 0.11" 0"
Sep 16 56° 80° 44° (1984) 95° (1991) 0.11" 0"
Sep 17 56° 80° 44° (1981) 91° (1988) 0.1" 0"
Sep 18 55° 79° 38° (1981) 95° (1983) 0.1" 0"
Sep 19 55° 79° 39° (1991) 92° (1983) 0.11" 0"
Sep 20 54° 79° 39° (1991) 89° (1983) 0.11" 0"
Sep 21 54° 78° 38° (1991) 92° (1980) 0.11" 0"
Sep 22 53° 78° 39° (1983) 91° (1980) 0.11" 0"
Sep 23 53° 77° 36° (1983) 92° (1988) 0.11" 0"
Sep 24 53° 77° 35° (1983) 82° (1984) 0.12" 0"
Sep 25 52° 76° 35° (1989) 90° (1986) 0.11" 0"
Sep 26 52° 76° 39° (1980) 89° (1986) 0.11" 0"
Sep 27 51° 76° 39° (1984) 88° (1981) 0.1" 0"
Sep 28 51° 75° 40° (1984) 89° (1986) 0.11" 0"
Sep 29 50° 75° 40° (1992) 91° (1986) 0.1" 0"
Sep 30 50° 74° 35° (1984) 88° (1981) 0.1" 0"
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