Alton, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 29° -30° (1972) 68° (2002) 0.75" 6.6"
February 14° 35° -27° (1994) 68° (1981) 0.75" 5.4"
March 25° 47° -19° (1960) 87° (1968) 1.97" 6.8"
April 36° 63° -1° (1975) 95° (2007) 3.14" 2.9"
May 48° 75° 17° (1967) 104° (1967) 3.43" 0.3"
June 58° 83° 33° (1989) 105° (1988) 4.45" 0"
July 62° 86° 38° (1972) 103° (1988) 3.77" 0"
August 60° 83° 37° (1986) 101° (1988) 3.48" 0"
September 51° 77° 21° (1984) 102° (1976) 3.27" 0"
October 38° 64° 9° (1972) 92° (2006) 2.37" 1"
November 25° 45° -20° (1959) 79° (1999) 1.54" 4.6"
December 12° 31° -29° (1989) 66° (1998) 0.94" 7.5"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Oct 1 44° 72° 24° (1984) 90° (1953) 0.09" 0"
Oct 2 43° 71° 19° (1974) 92° (1953) 0.1" 0"
Oct 3 43° 71° 23° (1987) 92° (2006) 0.09" 0"
Oct 4 43° 70° 22° (1968) 91° (2006) 0.1" 0"
Oct 5 42° 70° 23° (1988) 92° (1963) 0.09" 0"
Oct 6 42° 69° 24° (1976) 89° (1963) 0.09" 0.1"
Oct 7 42° 69° 19° (1974) 88° (1980) 0.09" 0"
Oct 8 41° 68° 15° (2000) 88° (2010) 0.09" 0"
Oct 9 41° 68° 20° (2000) 89° (2010) 0.08" 0"
Oct 10 40° 67° 19° (1970) 85° (1962) 0.09" 0"
Oct 11 40° 67° 17° (1987) 87° (1956) 0.09" 0"
Oct 12 40° 66° 23° (1980) 88° (1975) 0.08" 0.1"
Oct 13 39° 66° 22° (1979) 90° (1975) 0.09" 0"
Oct 14 39° 65° 21° (2006) 88° (1975) 0.08" 0"
Oct 15 39° 65° 23° (1991) 91° (1958) 0.08" 0"
Oct 16 38° 64° 21° (1966) 83° (1961) 0.08" 0"
Oct 17 38° 64° 13° (1976) 84° (1961) 0.08" 0.1"
Oct 18 38° 63° 20° (1992) 84° (2003) 0.07" 0"
Oct 19 37° 63° 9° (1972) 87° (2003) 0.07" 0"
Oct 20 37° 62° 16° (1960) 86° (2003) 0.07" 0.1"
Oct 21 37° 62° 16° (1982) 83° (1978) 0.07" 0"
Oct 22 36° 61° 15° (1976) 81° (1991) 0.07" 0"
Oct 23 36° 61° 18° (1964) 81° (1989) 0.06" 0.1"
Oct 24 36° 60° 17° (1999) 81° (1989) 0.06" 0"
Oct 25 35° 59° 19° (1957) 82° (1992) 0.06" 0.1"
Oct 26 35° 59° 20° (1988) 80° (1955) 0.05" 0"
Oct 27 34° 58° 13° (1997) 81° (1983) 0.06" 0.1"
Oct 28 34° 58° 10° (1967) 77° (1983) 0.06" 0.1"
Oct 29 34° 57° 19° (1975) 75° (1990) 0.07" 0"
Oct 30 33° 56° 14° (1991) 75° (1965) 0.05" 0.1"
Oct 31 33° 56° 10° (1993) 75° (1968) 0.06" 0.1"
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