Stillwell, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 16° 33° -23° (1999) 70° (1967) 1.66" 4.4"
February 19° 39° -20° (1979) 76° (1972) 1.86" 3.7"
March 29° 50° -14° (1978) 84° (1986) 2.53" 1.2"
April 41° 63° 13° (1982) 93° (1986) 3.84" 0.2"
May 51° 73° 29° (1966) 93° (2006) 5.03" 0"
June 61° 83° 41° (1972) 101° (1988) 4.84" 0"
July 65° 86° 45° (1967) 105° (1966) 4.24" 0"
August 63° 85° 40° (1967) 103° (2007) 3.86" 0"
September 53° 78° 30° (1984) 98° (1990) 3.45" 0"
October 42° 66° 19° (1972) 95° (2006) 3.17" 0"
November 32° 51° -14° (1964) 80° (1964) 2.9" 0.8"
December 20° 37° -22° (1989) 71° (1998) 2.35" 3.8"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 24° 42° 4° (1964) 65° (1970) 0.11" 0.1"
Dec 2 24° 42° 2° (1985) 66° (1962) 0.1" 0.2"
Dec 3 24° 41° -1° (1966) 71° (1970) 0.11" 0.1"
Dec 4 23° 41° 1° (1991) 65° (1998) 0.11" 0.1"
Dec 5 23° 40° 2° (1991) 71° (1998) 0.11" 0.2"
Dec 6 23° 40° -3° (1977) 70° (1980) 0.1" 0.1"
Dec 7 22° 39° -12° (1976) 66° (1980) 0.1" 0.1"
Dec 8 22° 39° -7° (1976) 65° (1966) 0.1" 0.2"
Dec 9 22° 39° -4° (1977) 69° (1991) 0.1" 0.1"
Dec 10 21° 38° -10° (1977) 63° (1979) 0.09" 0.1"
Dec 11 21° 38° -5° (1977) 61° (1965) 0.1" 0.1"
Dec 12 21° 37° -11° (1962) 59° (1965) 0.09" 0.2"
Dec 13 20° 37° -4° (1989) 67° (1991) 0.09" 0.1"
Dec 14 20° 37° -6° (1989) 67° (1975) 0.08" 0.1"
Dec 15 20° 37° -15° (1989) 64° (1971) 0.09" 0.2"
Dec 16 20° 36° -15° (1989) 59° (1984) 0.08" 0.1"
Dec 17 19° 36° -8° (1989) 63° (2006) 0.07" 0.1"
Dec 18 19° 36° -12° (1981) 63° (1962) 0.06" 0.1"
Dec 19 19° 35° -16° (1983) 59° (1966) 0.07" 0.1"
Dec 20 19° 35° -16° (1983) 59° (1988) 0.06" 0.1"
Dec 21 19° 35° -15° (1963) 60° (1967) 0.06" 0.1"
Dec 22 18° 35° -21° (1989) 60° (1965) 0.05" 0.1"
Dec 23 18° 35° -22° (1989) 62° (1982) 0.06" 0.2"
Dec 24 18° 35° -20° (1989) 60° (1982) 0.05" 0.1"
Dec 25 18° 34° -17° (1983) 56° (1982) 0.05" 0.1"
Dec 26 18° 34° -14° (1962) 53° (1971) 0.05" 0.1"
Dec 27 18° 34° -3° (1983) 55° (1976) 0.04" 0.2"
Dec 28 17° 34° 8° (1963) 65° (1984) 0.05" 0.1"
Dec 29 17° 34° -7° (1983) 70° (1984) 0.04" 0.1"
Dec 30 17° 34° -10° (1983) 66° (1965) 0.04" 0.1"
Dec 31 17° 34° -10° (1968) 62° (1965) 0.04" 0.1"
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