Alton, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 27° -30° (1972) 68° (2002) 0.75" 7"
February 14° 35° -27° (1994) 68° (1981) 0.7" 5.9"
March 25° 47° -19° (1960) 87° (1968) 2.04" 7.9"
April 36° 63° -1° (1975) 95° (2007) 2.83" 2.1"
May 48° 75° 17° (1967) 104° (1967) 3.49" 0"
June 58° 84° 33° (1989) 105° (1988) 4.59" 0"
July 61° 87° 38° (1972) 103° (1988) 3.79" 0"
August 59° 84° 37° (1986) 101° (1988) 3.42" 0"
September 49° 78° 21° (1984) 102° (1976) 2.59" 0"
October 37° 65° 9° (1972) 92° (2006) 2.16" 1.2"
November 24° 44° -20° (1959) 79° (1999) 1.62" 4.5"
December 11° 31° -29° (1989) 66° (1998) 0.81" 7.2"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jul 1 60° 86° 45° (1995) 97° (2002) 0.14" NA
Jul 2 61° 86° 47° (1968) 93° (1953) 0.14" NA
Jul 3 61° 86° 42° (1968) 102° (1990) 0.14" NA
Jul 4 61° 87° 42° (1967) 99° (1990) 0.14" NA
Jul 5 61° 87° 38° (1972) 97° (1977) 0.14" NA
Jul 6 61° 87° 44° (1958) 96° (1977) 0.13" NA
Jul 7 61° 87° 47° (1984) 97° (1957) 0.13" NA
Jul 8 61° 87° 47° (1953) 98° (1989) 0.13" NA
Jul 9 61° 87° 50° (1961) 102° (1976) 0.13" NA
Jul 10 61° 87° 47° (1996) 102° (1976) 0.13" NA
Jul 11 61° 87° 49° (1959) 101° (1954) 0.13" NA
Jul 12 61° 87° 48° (1975) 100° (1954) 0.12" NA
Jul 13 61° 87° 46° (2007) 101° (1995) 0.12" NA
Jul 14 61° 87° 46° (1990) 100° (1995) 0.12" NA
Jul 15 61° 87° 46° (1967) 98° (2006) 0.12" NA
Jul 16 61° 87° 48° (1958) 100° (2006) 0.12" NA
Jul 17 62° 87° 49° (1976) 99° (2006) 0.12" NA
Jul 18 62° 87° 48° (1979) 98° (1957) 0.12" NA
Jul 19 62° 87° 52° (1959) 100° (1954) 0.12" NA
Jul 20 62° 87° 50° (1970) 100° (2002) 0.12" NA
Jul 21 62° 87° 46° (2000) 99° (2002) 0.12" NA
Jul 22 62° 87° 50° (1980) 98° (1964) 0.12" NA
Jul 23 62° 87° 49° (1978) 96° (2005) 0.11" NA
Jul 24 62° 87° 51° (1994) 96° (2006) 0.11" NA
Jul 25 62° 87° 47° (2004) 95° (1953) 0.11" NA
Jul 26 62° 86° 44° (1962) 99° (1955) 0.11" NA
Jul 27 62° 86° 47° (2005) 99° (1955) 0.11" NA
Jul 28 61° 86° 45° (1994) 97° (1955) 0.11" NA
Jul 29 61° 86° 46° (1994) 99° (1959) 0.11" NA
Jul 30 61° 86° 43° (1971) 99° (1955) 0.11" NA
Jul 31 61° 86° 44° (1971) 103° (1988) 0.11" NA
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