Saint Louis, Missouri
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -5° -23.3° (1977) 23.3° (1970) 2.45" NA
February -2° -25° (1996) 26.1° (1976) 2.48" NA
March 13° -16.7° (1978) 31.1° (1997) 3.36" NA
April 20° -6.7° (1975) 33.9° (2006) 4.1" NA
May 14° 25° 1.1° (1978) 35° (1996) 4.8" NA
June 19° 30° 4.4° (1976) 38.9° (1988) 4.34" NA
July 22° 32° 11.7° (1975) 40.6° (1999) 4.19" NA
August 21° 31° 10.6° (1992) 40° (2003) 3.41" NA
September 16° 27° 1.7° (1969) 37.2° (1990) 3.38" NA
October 10° 21° -2.2° (1987) 34.4° (2006) 3.43" NA
November 13° -13.9° (1976) 28.3° (2003) 4.22" NA
December -2° -27.2° (1989) 25.6° (1970) 2.96" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 11° 22° 3° (1994) 32.8° (2007) 0.14" NA
May 2 12° 23° 4° (1994) 32° (1987) 0.15" NA
May 3 12° 23° 2° (1976) 28° (2010) 0.15" NA
May 4 12° 23° 4° (1976) 31° (1987) 0.16" NA
May 5 12° 23° 4° (1990) 32° (2010) 0.16" NA
May 6 12° 23° 3° (1976) 31° (1977) 0.16" NA
May 7 13° 23° 3° (1989) 32° (2004) 0.15" NA
May 8 13° 24° 3° (1989) 31° (1970) 0.15" NA
May 9 13° 24° 7° (1976) 31° (1970) 0.15" NA
May 10 13° 24° 5° (1978) 32° (1996) 0.15" NA
May 11 13° 24° 6° (1989) 31° (2005) 0.15" NA
May 12 13° 24° 6° (1989) 31° (1987) 0.16" NA
May 13 14° 24° 6.1° (2006) 31° (1970) 0.16" NA
May 14 14° 25° 4° (1975) 31° (1987) 0.16" NA
May 15 14° 25° 8° (2005) 33° (1987) 0.15" NA
May 16 14° 25° 4° (1997) 32° (1987) 0.15" NA
May 17 14° 25° 8° (2009) 32° (1977) 0.15" NA
May 18 15° 25° 8° (1976) 33° (1996) 0.15" NA
May 19 15° 25° 9° (1976) 35° (1996) 0.14" NA
May 20 15° 26° 8° (1997) 34° (1996) 0.16" NA
May 21 15° 26° 8° (1993) 34° (1987) 0.15" NA
May 22 15° 26° 9° (1997) 34° (1987) 0.15" NA
May 23 15° 26° 9° (1997) 33° (1975) 0.14" NA
May 24 16° 26° 9° (1992) 34° (1975) 0.16" NA
May 25 16° 26° 8° (1988) 33.3° (2006) 0.15" NA
May 26 16° 27° 8° (1988) 33° (1977) 0.16" NA
May 27 16° 27° 8° (1992) 33° (1972) 0.17" NA
May 28 16° 27° 5° (1992) 34° (1991) 0.16" NA
May 29 17° 27° 12° (2008) 34.4° (2006) 0.17" NA
May 30 17° 27° 10° (1992) 33.9° (2006) 0.17" NA
May 31 17° 27° 11° (1972) 34° (1989) 0.17" NA
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