Marshalltown, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 26° -31° (1912) 65° (2002) 0.95" 7.8"
February 13° 33° -35° (1996) 72° (1921) 1.05" 6.6"
March 25° 45° -32° (1962) 90° (1986) 2.39" 4.4"
April 37° 59° 4° (1982) 94° (1980) 3.31" 1.2"
May 49° 71° 20° (1907) 104° (1934) 4.25" 0"
June 59° 81° 30° (1943) 105° (1934) 5.57" 0"
July 63° 84° 42° (1947) 112° (1936) 4.58" 0"
August 60° 82° 35° (1915) 109° (1934) 4.74" 0"
September 50° 75° 20° (1942) 103° (1939) 3.53" 0"
October 38° 62° -3° (1925) 94° (1953) 2.63" 0.2"
November 26° 45° -11° (1977) 81° (1938) 2.16" 2.3"
December 14° 31° -28° (1985) 71° (1998) 1.24" 7.1"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 63° 84° 48° (1898) 102° (1988) 0.15" NA
Aug 2 63° 84° 44° (1894) 100° (1987) 0.15" NA
Aug 3 63° 84° 42° (1894) 106° (1930) 0.15" NA
Aug 4 63° 84° 43° (1978) 104° (1918) 0.15" NA
Aug 5 63° 84° 46° (1978) 102° (1947) 0.15" NA
Aug 6 62° 84° 48° (1910) 99° (1918) 0.15" NA
Aug 7 62° 83° 45° (1976) 100° (1894) 0.15" NA
Aug 8 62° 83° 40° (1904) 109° (1934) 0.15" NA
Aug 9 62° 83° 44° (1927) 102° (1894) 0.16" NA
Aug 10 62° 83° 44° (1917) 98° (1941) 0.16" NA
Aug 11 62° 83° 44° (1985) 103° (1905) 0.16" NA
Aug 12 61° 83° 46° (1952) 102° (1936) 0.16" NA
Aug 13 61° 83° 43° (1964) 98° (1913) 0.16" NA
Aug 14 61° 82° 44° (2004) 100° (1913) 0.16" NA
Aug 15 61° 82° 44° (2004) 103° (1911) 0.16" NA
Aug 16 61° 82° 45° (2004) 102° (1937) 0.16" NA
Aug 17 60° 82° 45° (1897) 101° (1988) 0.16" NA
Aug 18 60° 82° 43° (1943) 108° (1936) 0.16" NA
Aug 19 60° 82° 45° (1977) 100° (1947) 0.16" NA
Aug 20 60° 82° 39° (1897) 101° (1947) 0.15" NA
Aug 21 59° 81° 44° (1985) 102° (1947) 0.15" NA
Aug 22 59° 81° 43° (1923) 99° (1947) 0.15" NA
Aug 23 59° 81° 45° (1966) 100° (1947) 0.15" NA
Aug 24 58° 81° 38° (1942) 102° (1936) 0.15" NA
Aug 25 58° 81° 41° (1915) 100° (1936) 0.15" NA
Aug 26 58° 80° 43° (1910) 97° (1955) 0.15" NA
Aug 27 57° 80° 40° (1916) 98° (1955) 0.15" NA
Aug 28 57° 80° 39° (1916) 97° (1984) 0.15" NA
Aug 29 57° 80° 39° (1911) 96° (1912) 0.15" NA
Aug 30 56° 79° 35° (1915) 101° (1912) 0.14" NA
Aug 31 56° 79° 40° (1915) 102° (1913) 0.14" NA
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