Des Moines, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -11° -2° -34.4° (1884) 19.4° (2003) 1.03" 8.8"
February -8° -32.2° (1996) 25.6° (1930) 1.19" 8.2"
March -2° -30° (1962) 32.8° (1986) 2.21" 4.1"
April 16° -12.8° (1975) 33.9° (1980) 3.58" 2.7"
May 11° 22° -3.3° (1907) 40.6° (1934) 4.25" 0"
June 16° 28° 2.8° (1889) 39.4° (1988) 4.57" 0"
July 19° 30° 8.3° (1971) 43.3° (1936) 4.18" 0"
August 18° 29° 4.4° (1950) 43.3° (1918) 4.51" 0"
September 12° 24° -3.3° (1942) 38.3° (1939) 3.15" 0"
October 17° -13.9° (1925) 35° (1963) 2.62" 0.4"
November -2° -23.3° (1891) 27.8° (1938) 2.1" 4.5"
December -8° -30° (1989) 20.6° (1984) 1.33" 7.7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 15.6° 27.2° 3° (1949) 37° (1913) 0.13" NA
Sep 2 15° 26.7° 6° (1893) 37° (2000) 0.13" NA
Sep 3 15° 26.7° 4° (1974) 38° (1939) 0.12" NA
Sep 4 15° 26.7° 4° (1891) 37° (1913) 0.12" NA
Sep 5 14.4° 26.1° 7° (1889) 37° (1925) 0.12" NA
Sep 6 14.4° 26.1° 6° (1988) 38° (1939) 0.12" NA
Sep 7 13.9° 26.1° 5° (1986) 38° (1939) 0.12" NA
Sep 8 13.9° 25.6° 3° (1883) 37° (1947) 0.11" NA
Sep 9 13.9° 25.6° 4° (1883) 37° (1955) 0.11" NA
Sep 10 13.3° 25.6° 6° (1910) 37° (1927) 0.11" NA
Sep 11 13.3° 25° 4° (1955) 36° (2000) 0.11" NA
Sep 12 13.3° 25° 3° (1902) 36° (1927) 0.11" NA
Sep 13 12.8° 25° 1° (1890) 36° (1939) 0.11" NA
Sep 14 12.8° 25° 3° (1879) 36° (1939) 0.11" NA
Sep 15 12.8° 24.4° 3° (2007) 36° (1927) 0.1" NA
Sep 16 12.2° 24.4° 3° (1984) 36° (1931) 0.1" NA
Sep 17 12.2° 24.4° 3° (1901) 35° (1925) 0.1" NA
Sep 18 11.7° 23.9° 2° (1916) 34° (1895) 0.1" NA
Sep 19 11.7° 23.9° 1° (1991) 36° (1948) 0.1" NA
Sep 20 11.7° 23.3° 1° (1991) 33° (1931) 0.1" NA
Sep 21 11.1° 23.3° 2° (1995) 35° (1937) 0.1" NA
Sep 22 11.1° 23.3° -1° (1995) 37° (1937) 0.1" NA
Sep 23 10.6° 22.8° 0° (1983) 33° (1892) 0.09" NA
Sep 24 10.6° 22.8° -1° (1942) 31° (1984) 0.09" NA
Sep 25 10.6° 22.8° 0° (1942) 33° (1897) 0.09" NA
Sep 26 10° 22.2° -1° (1926) 32° (1956) 0.09" NA
Sep 27 10° 22.2° -1° (1942) 33° (1956) 0.09" NA
Sep 28 10° 22.2° -3° (1942) 37° (1953) 0.09" NA
Sep 29 9.4° 21.7° -2° (1984) 32° (2002) 0.09" NA
Sep 30 9.4° 21.7° -3° (1899) 33° (1952) 0.09" NA
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