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
Aug 1 18.9° 30° 11° (1898) 38° (1987) 0.14" NA
Aug 2 18.9° 30° 11° (1907) 38° (1964) 0.14" NA
Aug 3 18.9° 30° 10° (1927) 41° (1930) 0.15" NA
Aug 4 18.9° 30° 8° (1894) 43° (1918) 0.15" NA
Aug 5 18.9° 30° 8° (1889) 42° (1934) 0.15" NA
Aug 6 18.9° 30° 12° (1989) 38° (1918) 0.15" NA
Aug 7 18.9° 29.4° 9° (1989) 38° (1988) 0.15" NA
Aug 8 18.9° 29.4° 10° (1904) 43° (1934) 0.15" NA
Aug 9 18.9° 29.4° 8° (1888) 41° (1934) 0.15" NA
Aug 10 18.3° 29.4° 10° (1917) 39° (1911) 0.15" NA
Aug 11 18.3° 29.4° 10° (2004) 39° (1881) 0.15" NA
Aug 12 18.3° 29.4° 9° (2004) 38° (1936) 0.15" NA
Aug 13 18.3° 29.4° 9° (1964) 37° (1965) 0.15" NA
Aug 14 18.3° 28.9° 11° (1994) 40° (1988) 0.15" NA
Aug 15 18.3° 28.9° 9° (1929) 40° (1988) 0.15" NA
Aug 16 17.8° 28.9° 11° (1992) 42° (1983) 0.15" NA
Aug 17 17.8° 28.9° 8° (1897) 40° (1988) 0.15" NA
Aug 18 17.8° 28.9° 8° (1897) 42° (1936) 0.15" NA
Aug 19 17.8° 28.9° 9° (1950) 38° (1983) 0.15" NA
Aug 20 17.2° 28.3° 4° (1950) 38° (1983) 0.15" NA
Aug 21 17.2° 28.3° 8° (1950) 39° (1936) 0.15" NA
Aug 22 17.2° 28.3° 9° (1923) 37° (1948) 0.15" NA
Aug 23 17.2° 28.3° 6° (1891) 37° (1975) 0.14" NA
Aug 24 16.7° 28.3° 4° (1891) 40° (1936) 0.14" NA
Aug 25 16.7° 27.8° 7° (1934) 41° (1936) 0.14" NA
Aug 26 16.7° 27.8° 7° (1910) 40° (1983) 0.14" NA
Aug 27 16.1° 27.8° 7° (1986) 37° (1955) 0.14" NA
Aug 28 16.1° 27.8° 5° (1986) 38° (1984) 0.14" NA
Aug 29 16.1° 27.2° 6° (1946) 37° (1984) 0.13" NA
Aug 30 15.6° 27.2° 6° (1893) 37° (1898) 0.13" NA
Aug 31 15.6° 27.2° 7° (1967) 37° (1913) 0.13" NA
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