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
Dec 1 19° 37° -4° (1976) 65° (1962) 0.06" NA
Dec 2 19° 36° -5° (1942) 64° (1962) 0.05" NA
Dec 3 18° 36° -14° (1919) 64° (1982) 0.05" NA
Dec 4 18° 35° -8° (1895) 67° (1946) 0.05" NA
Dec 5 18° 35° -8° (1895) 71° (1998) 0.05" NA
Dec 6 17° 34° -11° (1917) 67° (2001) 0.05" NA
Dec 7 17° 34° -16° (1976) 55° (1946) 0.05" NA
Dec 8 16° 33° -17° (1917) 70° (1946) 0.05" NA
Dec 9 16° 33° -18° (1958) 63° (1946) 0.05" NA
Dec 10 16° 33° -26° (1919) 57° (1965) 0.04" NA
Dec 11 15° 32° -14° (1976) 61° (1949) 0.04" NA
Dec 12 15° 32° -15° (1989) 60° (1968) 0.04" NA
Dec 13 15° 31° -17° (1942) 57° (1913) 0.04" NA
Dec 14 14° 31° -20° (1901) 58° (1975) 0.04" NA
Dec 15 14° 31° -16° (1989) 57° (1998) 0.04" NA
Dec 16 13° 30° -15° (1932) 66° (1939) 0.04" NA
Dec 17 13° 30° -13° (1945) 65° (1939) 0.04" NA
Dec 18 13° 30° -19° (1985) 59° (1962) 0.04" NA
Dec 19 12° 30° -28° (1985) 66° (1900) 0.04" NA
Dec 20 12° 29° -20° (1983) 56° (1967) 0.04" NA
Dec 21 12° 29° -25° (1985) 61° (1941) 0.04" NA
Dec 22 11° 29° -22° (1983) 55° (1941) 0.03" NA
Dec 23 11° 28° -26° (1989) 54° (1965) 0.03" NA
Dec 24 11° 28° -22° (1983) 54° (1936) 0.03" NA
Dec 25 10° 28° -26° (2000) 60° (1936) 0.03" NA
Dec 26 10° 28° -25° (1944) 57° (1936) 0.03" NA
Dec 27 10° 28° -22° (1950) 59° (1912) 0.03" NA
Dec 28 10° 27° -20° (1924) 58° (1984) 0.03" NA
Dec 29 27° -20° (1917) 67° (1984) 0.03" NA
Dec 30 27° -24° (1911) 61° (1965) 0.03" NA
Dec 31 27° -16° (1976) 58° (1965) 0.03" NA
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