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
Jul 1 62° 84° 47° (1988) 105° (1925) 0.17" NA
Jul 2 63° 84° 45° (1942) 102° (1911) 0.17" NA
Jul 3 63° 84° 44° (1917) 105° (1911) 0.16" NA
Jul 4 63° 84° 45° (1967) 105° (1911) 0.16" NA
Jul 5 63° 84° 45° (1972) 106° (1936) 0.16" NA
Jul 6 63° 84° 48° (1967) 102° (1977) 0.16" NA
Jul 7 63° 84° 45° (1984) 103° (1977) 0.16" NA
Jul 8 63° 84° 45° (1908) 102° (1912) 0.15" NA
Jul 9 63° 84° 47° (1895) 102° (1901) 0.15" NA
Jul 10 63° 84° 46° (1945) 107° (1936) 0.15" NA
Jul 11 63° 84° 43° (1945) 108° (1936) 0.15" NA
Jul 12 63° 84° 49° (1941) 107° (1936) 0.15" NA
Jul 13 63° 85° 45° (1940) 110° (1936) 0.15" NA
Jul 14 63° 85° 46° (1950) 112° (1936) 0.14" NA
Jul 15 64° 85° 48° (1930) 108° (1936) 0.14" NA
Jul 16 64° 85° 46° (1906) 103° (1901) 0.14" NA
Jul 17 64° 85° 44° (1911) 101° (1936) 0.14" NA
Jul 18 64° 85° 49° (1979) 102° (1930) 0.14" NA
Jul 19 64° 85° 45° (1912) 105° (1934) 0.14" NA
Jul 20 64° 85° 49° (1911) 106° (1934) 0.14" NA
Jul 21 64° 85° 45° (1944) 107° (1901) 0.14" NA
Jul 22 64° 85° 42° (1947) 106° (1901) 0.14" NA
Jul 23 64° 85° 47° (1947) 104° (1934) 0.14" NA
Jul 24 64° 85° 49° (1904) 108° (1901) 0.14" NA
Jul 25 63° 84° 47° (2004) 104° (1901) 0.14" NA
Jul 26 63° 84° 45° (1911) 106° (1936) 0.14" NA
Jul 27 63° 84° 48° (1937) 107° (1930) 0.14" NA
Jul 28 63° 84° 49° (1925) 104° (1913) 0.14" NA
Jul 29 63° 84° 48° (1952) 104° (1913) 0.14" NA
Jul 30 63° 84° 45° (1971) 103° (1955) 0.15" NA
Jul 31 63° 84° 43° (1971) 104° (1955) 0.15" NA
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