Saint Louis, Missouri
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -6° -28.3° (1930) 25° (1950) 2.14" 7.4"
February -3° -27.8° (1905) 29.4° (1972) 2.28" 4.8"
March 13° -20.6° (1960) 33.3° (1929) 3.6" 3.3"
April 19° -6.7° (1936) 33.9° (2002) 3.69" 0.6"
May 14° 24° -0.6° (1976) 36.7° (1953) 4.11" 0"
June 19° 29° 6.1° (1969) 40.6° (1952) 3.76" 0"
July 22° 32° 10.6° (1972) 46.1° (1954) 3.9" 0"
August 21° 31° 1.1° (1986) 43.3° (1934) 2.98" 0"
September 16° 27° 0° (1942) 40° (1984) 2.96" 0"
October 20° -10° (1925) 34.4° (2006) 2.76" 0"
November 12° -17.2° (1964) 30° (1937) 3.71" 1.5"
December -3° -26.7° (1989) 24.4° (1970) 2.86" 4.9"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 18.3° 29.4° 9° (1967) 40° (1984) 0.1" NA
Sep 2 18.3° 28.9° 10° (1967) 38° (1953) 0.1" NA
Sep 3 18.3° 28.9° 7° (1974) 37° (1925) 0.1" NA
Sep 4 17.8° 28.9° 6° (1974) 40° (1954) 0.1" NA
Sep 5 17.8° 28.3° 8° (1974) 39° (1954) 0.1" NA
Sep 6 17.8° 28.3° 9° (1962) 39° (1925) 0.1" NA
Sep 7 17.2° 28.3° 8° (1956) 38° (1939) 0.1" NA
Sep 8 17.2° 28.3° 6° (1986) 38° (1947) 0.1" NA
Sep 9 17.2° 27.8° 9° (1943) 38° (1925) 0.1" NA
Sep 10 16.7° 27.8° 8° (1976) 37° (1983) 0.1" NA
Sep 11 16.7° 27.8° 6° (1940) 36° (1938) 0.1" NA
Sep 12 16.7° 27.2° 7° (1940) 37° (1956) 0.1" NA
Sep 13 16.1° 27.2° 6° (1975) 38° (1939) 0.1" NA
Sep 14 16.1° 27.2° 8° (1996) 38° (1939) 0.1" NA
Sep 15 16.1° 26.7° 7° (2007) 38° (1939) 0.1" NA
Sep 16 15.6° 26.7° 7° (1966) 37° (1954) 0.1" NA
Sep 17 15.6° 26.7° 3° (1937) 36° (1931) 0.1" NA
Sep 18 15.6° 26.1° 6° (1973) 36° (1925) 0.1" NA
Sep 19 15° 26.1° 6° (1938) 36° (1955) 0.1" NA
Sep 20 15° 26.1° 5° (1991) 36° (1940) 0.1" NA
Sep 21 14.4° 25.6° 4° (1983) 36° (1940) 0.1" NA
Sep 22 14.4° 25.6° 4° (1995) 35° (1956) 0.1" NA
Sep 23 14.4° 25.6° 2° (1974) 34° (2007) 0.1" NA
Sep 24 13.9° 25° 3° (1942) 34° (1939) 0.1" NA
Sep 25 13.9° 25° 4° (1942) 33° (1900) 0.1" NA
Sep 26 13.3° 25° 2° (1940) 34° (1897) 0.1" NA
Sep 27 13.3° 24.4° 2° (1940) 32° (1998) 0.09" NA
Sep 28 13.3° 24.4° 0° (1942) 36° (1953) 0.09" NA
Sep 29 12.8° 24.4° 2° (1942) 39° (1953) 0.09" NA
Sep 30 12.8° 23.9° 2° (1949) 34° (1952) 0.09" NA
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