Mount Vernon, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 13° 31° -27° (1930) 68° (1989) 1.09" 8"
February 18° 36° -28° (1996) 73° (1921) 1.27" 6.8"
March 28° 49° -17° (1962) 88° (1986) 1.99" 4"
April 40° 64° 3° (1982) 94° (1925) 3.42" 1.6"
May 50° 74° 24° (1925) 104° (1934) 4.76" 0"
June 60° 82° 36° (1945) 103° (1934) 5.13" 0"
July 64° 85° 42° (1924) 110° (1911) 4.59" 0"
August 63° 83° 37° (1915) 108° (1936) 4.83" 0"
September 54° 77° 22° (1899) 105° (1925) 3.65" 0"
October 42° 64° -2° (1925) 94° (1997) 2.85" 0.3"
November 30° 48° -10° (1977) 80° (1999) 2.43" 2.1"
December 18° 33° -28° (1924) 69° (1998) 1.63" 8.7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Mar 1 23° 41° -17° (1962) 71° (1992) 0.05" 0.2"
Mar 2 23° 42° -13° (1912) 73° (1923) 0.06" 0.1"
Mar 3 24° 42° -9° (1913) 71° (1983) 0.05" 0.2"
Mar 4 24° 43° -8° (1978) 73° (1921) 0.06" 0.2"
Mar 5 24° 43° -9° (1960) 72° (1921) 0.05" 0.1"
Mar 6 25° 44° -10° (1960) 73° (2005) 0.06" 0.2"
Mar 7 25° 44° -5° (1899) 79° (2000) 0.06" 0.1"
Mar 8 26° 45° -10° (1943) 76° (2000) 0.05" 0.2"
Mar 9 26° 45° -8° (1975) 70° (1977) 0.06" 0.1"
Mar 10 26° 46° -1° (1948) 69° (1955) 0.06" 0.2"
Mar 11 27° 46° -12° (1948) 74° (1972) 0.05" 0.1"
Mar 12 27° 47° -7° (1948) 79° (1990) 0.06" 0.2"
Mar 13 27° 47° -5° (1975) 77° (2007) 0.06" 0.1"
Mar 14 28° 48° -1° (1897) 74° (1995) 0.05" 0.1"
Mar 15 28° 48° 3° (1979) 74° (1935) 0.06" 0.2"
Mar 16 28° 49° -3° (1900) 79° (1945) 0.06" 0.1"
Mar 17 29° 49° -2° (1902) 76° (2003) 0.07" 0.2"
Mar 18 29° 50° 2° (1923) 78° (1903) 0.06" 0.1"
Mar 19 30° 50° -10° (1923) 80° (1921) 0.07" 0.1"
Mar 20 30° 51° 6° (1951) 76° (1938) 0.07" 0.1"
Mar 21 30° 51° 2° (1951) 85° (1938) 0.07" 0.1"
Mar 22 31° 52° 1° (1912) 85° (1907) 0.07" 0.1"
Mar 23 31° 52° 1° (1912) 83° (1939) 0.07" 0.1"
Mar 24 31° 53° -4° (1974) 87° (1910) 0.06" 0.1"
Mar 25 32° 53° 5° (1940) 80° (2007) 0.08" 0.1"
Mar 26 32° 54° 6° (1955) 84° (1907) 0.07" 0.1"
Mar 27 32° 55° 9° (1964) 85° (1907) 0.07" 0.1"
Mar 28 33° 55° 7° (1970) 80° (1910) 0.08" 0.1"
Mar 29 33° 56° 7° (1969) 88° (1986) 0.08" 0.1"
Mar 30 33° 56° 7° (1969) 86° (1986) 0.08" 0.1"
Mar 31 34° 57° 9° (1923) 81° (1986) 0.09" 0.1"
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