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
Mar 1 19° 38° -32° (1962) 70° (1992) 0.05" NA
Mar 2 19° 39° -14° (1913) 72° (1923) 0.06" NA
Mar 3 19° 39° -14° (1913) 71° (1946) 0.06" NA
Mar 4 20° 40° -10° (1978) 76° (1983) 0.06" NA
Mar 5 20° 40° -14° (1960) 69° (1921) 0.06" NA
Mar 6 21° 41° -12° (1960) 69° (2000) 0.06" NA
Mar 7 21° 41° -5° (1943) 73° (2000) 0.06" NA
Mar 8 22° 41° -20° (1950) 77° (2000) 0.07" NA
Mar 9 22° 42° -7° (1995) 76° (1977) 0.07" NA
Mar 10 23° 42° -6° (1948) 70° (1967) 0.07" NA
Mar 11 23° 43° -17° (1948) 75° (1916) 0.07" NA
Mar 12 23° 43° -20° (1948) 75° (1990) 0.07" NA
Mar 13 24° 44° -8° (1975) 71° (1957) 0.07" NA
Mar 14 24° 44° -10° (1960) 74° (2007) 0.08" NA
Mar 15 25° 45° -9° (1975) 74° (1935) 0.08" NA
Mar 16 25° 45° -5° (1900) 77° (1930) 0.08" NA
Mar 17 25° 46° -6° (1909) 80° (1918) 0.08" NA
Mar 18 26° 46° -6° (1909) 76° (1945) 0.08" NA
Mar 19 26° 47° -12° (1923) 78° (1918) 0.08" NA
Mar 20 27° 47° 4° (1906) 79° (1938) 0.08" NA
Mar 21 27° 48° -1° (1951) 85° (1907) 0.08" NA
Mar 22 27° 48° -4° (1912) 78° (1910) 0.09" NA
Mar 23 28° 48° 5° (1940) 88° (1910) 0.09" NA
Mar 24 28° 49° 0° (1965) 82° (1967) 0.09" NA
Mar 25 29° 49° 5° (1940) 87° (1907) 0.09" NA
Mar 26 29° 50° 4° (1955) 87° (1907) 0.09" NA
Mar 27 29° 50° 5° (1964) 79° (1910) 0.09" NA
Mar 28 30° 51° 7° (1970) 81° (1910) 0.09" NA
Mar 29 30° 51° 5° (1969) 90° (1895) 0.09" NA
Mar 30 30° 52° 3° (1964) 90° (1986) 0.1" NA
Mar 31 31° 52° 10° (1923) 78° (1920) 0.1" NA
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