Sumpter, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 20° 35° -23° (1985) 70° (1950) 2.26" 5.8"
February 24° 40° -17° (1996) 74° (2000) 2.22" 3"
March 33° 52° -8° (1960) 85° (1981) 2.71" 1.4"
April 44° 64° 17° (1987) 89° (1987) 4.01" 0.1"
May 54° 75° 28° (1966) 95° (1987) 4.17" 0"
June 63° 84° 41° (1992) 105° (1954) 4.11" 0"
July 67° 87° 48° (1962) 111° (1954) 4.22" 0"
August 65° 85° 40° (1986) 104° (1988) 2.89" 0"
September 57° 79° 33° (1983) 103° (1954) 3.22" 0"
October 46° 66° 19° (1962) 92° (1954) 3.56" 0"
November 35° 52° -2° (1950) 82° (1950) 3.85" 0.4"
December 24° 38° -20° (1989) 71° (1998) 2.96" 3.7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jan 1 21° 35° -13° (1968) 63° (1952) 0.08" 0.2"
Jan 2 21° 35° -6° (1979) 62° (1997) 0.09" 0.1"
Jan 3 21° 35° -2° (1979) 63° (1950) 0.08" 0.2"
Jan 4 21° 35° -6° (1959) 65° (1997) 0.09" 0.2"
Jan 5 21° 35° -11° (1999) 60° (1955) 0.08" 0.2"
Jan 6 21° 35° -9° (1970) 54° (1987) 0.08" 0.1"
Jan 7 20° 35° -12° (1968) 63° (1965) 0.08" 0.2"
Jan 8 20° 35° -11° (1970) 54° (1954) 0.07" 0.2"
Jan 9 20° 35° -11° (1982) 57° (1954) 0.08" 0.2"
Jan 10 20° 35° -12° (1962) 60° (1975) 0.07" 0.1"
Jan 11 20° 35° -15° (1977) 57° (1980) 0.08" 0.2"
Jan 12 20° 35° -9° (1974) 68° (1960) 0.07" 0.2"
Jan 13 20° 35° -7° (1997) 62° (1950) 0.06" 0.1"
Jan 14 20° 35° -9° (1979) 62° (1952) 0.07" 0.2"
Jan 15 20° 35° -13° (1972) 62° (1949) 0.07" 0.2"
Jan 16 20° 35° -18° (1977) 67° (1990) 0.07" 0.2"
Jan 17 20° 35° -19° (1977) 69° (1952) 0.07" 0.2"
Jan 18 20° 35° -20° (1994) 63° (1951) 0.07" 0.3"
Jan 19 20° 35° -20° (1994) 62° (1952) 0.07" 0.2"
Jan 20 20° 35° -23° (1985) 59° (1951) 0.07" 0.2"
Jan 21 20° 35° -14° (1984) 65° (1986) 0.06" 0.2"
Jan 22 20° 35° -8° (1970) 62° (1964) 0.07" 0.2"
Jan 23 21° 35° -13° (1963) 67° (1967) 0.07" 0.2"
Jan 24 21° 35° -10° (1963) 69° (1950) 0.07" 0.2"
Jan 25 21° 35° -4° (1961) 70° (1950) 0.07" 0.2"
Jan 26 21° 36° -3° (1985) 57° (1974) 0.07" 0.2"
Jan 27 21° 36° -7° (1963) 63° (1999) 0.07" 0.2"
Jan 28 21° 36° -15° (1963) 65° (1999) 0.07" 0.2"
Jan 29 21° 36° -11° (1966) 63° (1975) 0.07" 0.1"
Jan 30 21° 36° -11° (1966) 57° (1953) 0.07" 0.2"
Jan 31 21° 36° -10° (1965) 67° (1989) 0.07" 0.2"
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