Aviston, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 22° 40° -27° (1977) 75° (1950) 2.02" NA
February 27° 46° -21° (1982) 81° (2000) 2.2" NA
March 35° 57° -8° (1978) 89° (1997) 3.54" NA
April 45° 68° 18° (2007) 91° (2007) 3.91" NA
May 54° 77° 28° (1976) 97° (1953) 4.18" NA
June 63° 86° 38° (1972) 104° (1952) 3.97" NA
July 67° 90° 43° (1972) 110° (1954) 3.51" NA
August 64° 88° 39° (1986) 105° (2007) 3.34" NA
September 56° 82° 26° (1995) 103° (1954) 2.98" NA
October 45° 71° 20° (1981) 95° (1953) 2.87" NA
November 36° 56° 2° (1991) 84° (1950) 3.88" NA
December 27° 44° -19° (1989) 76° (1970) 2.97" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 66° 90° 50° (1971) 100° (1980) 0.11" NA
Aug 2 66° 89° 53° (1977) 100° (1964) 0.11" NA
Aug 3 66° 89° 51° (1965) 104° (1964) 0.11" NA
Aug 4 66° 89° 49° (1976) 101° (1954) 0.11" NA
Aug 5 66° 89° 52° (1974) 100° (1956) 0.11" NA
Aug 6 65° 89° 50° (1997) 99° (1983) 0.11" NA
Aug 7 65° 89° 46° (1990) 100° (2007) 0.11" NA
Aug 8 65° 89° 46° (1989) 101° (2007) 0.11" NA
Aug 9 65° 89° 46° (1989) 101° (2007) 0.11" NA
Aug 10 65° 89° 46° (1989) 100° (1980) 0.11" NA
Aug 11 65° 89° 47° (1989) 97° (1988) 0.11" NA
Aug 12 65° 89° 45° (1967) 101° (2007) 0.11" NA
Aug 13 64° 88° 46° (1964) 101° (2007) 0.11" NA
Aug 14 64° 88° 46° (2004) 100° (2007) 0.11" NA
Aug 15 64° 88° 46° (2004) 105° (2007) 0.11" NA
Aug 16 64° 88° 48° (2004) 105° (2007) 0.11" NA
Aug 17 64° 88° 52° (1994) 100° (1988) 0.11" NA
Aug 18 63° 88° 50° (1989) 101° (1954) 0.11" NA
Aug 19 63° 88° 51° (1977) 103° (1962) 0.11" NA
Aug 20 63° 87° 48° (1967) 103° (1962) 0.11" NA
Aug 21 63° 87° 46° (1967) 101° (2003) 0.11" NA
Aug 22 63° 87° 50° (1950) 100° (2003) 0.11" NA
Aug 23 63° 87° 51° (1997) 100° (2007) 0.11" NA
Aug 24 62° 87° 50° (1966) 100° (2007) 0.11" NA
Aug 25 62° 87° 50° (1966) 97° (1954) 0.1" NA
Aug 26 62° 86° 50° (1970) 99° (1983) 0.1" NA
Aug 27 62° 86° 49° (1967) 99° (1983) 0.1" NA
Aug 28 61° 86° 43° (1967) 100° (1990) 0.1" NA
Aug 29 61° 86° 39° (1986) 99° (1990) 0.1" NA
Aug 30 61° 86° 41° (1986) 98° (1951) 0.1" NA
Aug 31 61° 85° 44° (1988) 99° (1951) 0.1" NA
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