Atlas, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 15° 36° -25° (1999) 72° (1990) 1.64" NA
February 21° 42° -26° (1979) 75° (1976) 1.84" NA
March 31° 54° -16° (1978) 85° (1991) 3.06" NA
April 42° 65° 13° (1975) 92° (1992) 3.87" NA
May 51° 75° 26° (1989) 96° (1992) 4.25" NA
June 61° 84° 37° (1969) 104° (1988) 3.48" NA
July 66° 88° 42° (1983) 105° (1966) 3.42" NA
August 64° 87° 37° (1986) 106° (1984) 3.44" NA
September 55° 80° 28° (1989) 102° (1984) 3.03" NA
October 43° 68° 16° (1976) 94° (1963) 2.76" NA
November 33° 54° -8° (1991) 80° (2000) 3.59" NA
December 21° 40° -21° (1989) 78° (1991) 2.52" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 27° 46° 8° (1964) 69° (1982) 0.11" NA
Dec 2 26° 45° 4° (1985) 73° (1982) 0.11" NA
Dec 3 26° 45° 2° (1974) 69° (1982) 0.1" NA
Dec 4 25° 45° 1° (1974) 73° (1970) 0.1" NA
Dec 5 25° 44° 4° (1991) 72° (1998) 0.1" NA
Dec 6 25° 44° 0° (1977) 72° (1998) 0.1" NA
Dec 7 24° 43° -4° (1976) 71° (1980) 0.1" NA
Dec 8 24° 43° -4° (1976) 75° (1991) 0.09" NA
Dec 9 23° 42° -1° (1977) 78° (1991) 0.09" NA
Dec 10 23° 42° 0° (1977) 63° (1965) 0.09" NA
Dec 11 23° 42° -4° (1977) 67° (1996) 0.09" NA
Dec 12 22° 41° -1° (1989) 67° (1979) 0.09" NA
Dec 13 22° 41° -4° (1963) 73° (1991) 0.08" NA
Dec 14 22° 41° -4° (1963) 68° (1975) 0.08" NA
Dec 15 21° 40° -12° (1989) 70° (1975) 0.08" NA
Dec 16 21° 40° -15° (1989) 64° (1984) 0.08" NA
Dec 17 21° 40° -15° (1963) 61° (1984) 0.08" NA
Dec 18 20° 39° -9° (1981) 63° (2002) 0.08" NA
Dec 19 20° 39° -19° (1983) 62° (1976) 0.08" NA
Dec 20 20° 39° -13° (1983) 62° (1988) 0.07" NA
Dec 21 19° 38° -12° (1963) 60° (1967) 0.07" NA
Dec 22 19° 38° -20° (1989) 61° (1984) 0.07" NA
Dec 23 19° 38° -21° (1989) 60° (1982) 0.07" NA
Dec 24 18° 38° -16° (1983) 66° (1982) 0.07" NA
Dec 25 18° 37° -16° (1983) 60° (1982) 0.07" NA
Dec 26 18° 37° -11° (1983) 63° (1971) 0.07" NA
Dec 27 18° 37° -2° (1983) 62° (1971) 0.06" NA
Dec 28 17° 37° 5° (1977) 64° (1982) 0.06" NA
Dec 29 17° 36° -17° (1983) 73° (1984) 0.06" NA
Dec 30 17° 36° -16° (1983) 63° (1992) 0.06" NA
Dec 31 17° 36° -13° (1976) 73° (1992) 0.06" NA
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