Illinois City, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 15° 32° -28° (1982) 69° (1989) 1.41" 9.5"
February 20° 37° -34° (1996) 69° (2000) 1.62" 5.1"
March 30° 50° -17° (1962) 89° (1986) 2.7" 2"
April 42° 64° 10° (1982) 93° (1952) 3.49" 0.5"
May 52° 74° 26° (2005) 95° (1953) 4.68" 0"
June 62° 83° 39° (1985) 104° (1988) 5.07" 0"
July 66° 86° 45° (1972) 105° (1988) 4.04" 0"
August 64° 84° 39° (1986) 105° (1988) 4.55" 0"
September 55° 78° 26° (1984) 100° (1953) 3.47" 0"
October 43° 65° 17° (1988) 96° (1997) 3.02" 0.1"
November 32° 50° -5° (1977) 81° (1950) 2.47" 0.4"
December 19° 35° -23° (1989) 72° (1998) 2.08" 7.6"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jan 1 16° 32° -12° (1968) 53° (2004) 0.05" 0.3"
Jan 2 16° 32° -17° (1979) 61° (2004) 0.05" 0.3"
Jan 3 16° 32° -16° (1985) 60° (1998) 0.05" 0.3"
Jan 4 16° 32° -13° (1999) 61° (1997) 0.05" 0.3"
Jan 5 16° 32° -25° (1999) 52° (1956) 0.05" 0.2"
Jan 6 16° 32° -17° (1979) 56° (2008) 0.04" 0.3"
Jan 7 15° 32° -15° (1968) 61° (2008) 0.05" 0.3"
Jan 8 15° 32° -15° (1970) 65° (2003) 0.04" 0.3"
Jan 9 15° 32° -12° (1999) 56° (2002) 0.05" 0.3"
Jan 10 15° 32° -28° (1982) 56° (1975) 0.04" 0.3"
Jan 11 15° 32° -16° (1979) 53° (1980) 0.05" 0.4"
Jan 12 15° 32° -21° (1974) 57° (1960) 0.04" 0.3"
Jan 13 15° 32° -9° (1963) 57° (1961) 0.05" 0.3"
Jan 14 15° 32° -15° (1957) 55° (1952) 0.04" 0.4"
Jan 15 15° 32° -23° (2009) 59° (1953) 0.04" 0.3"
Jan 16 15° 32° -28° (2009) 57° (1990) 0.05" 0.3"
Jan 17 15° 32° -16° (1977) 57° (1996) 0.05" 0.4"
Jan 18 15° 32° -20° (1994) 57° (1996) 0.04" 0.3"
Jan 19 15° 32° -24° (1994) 59° (1951) 0.05" 0.3"
Jan 20 15° 32° -23° (1985) 51° (1968) 0.04" 0.3"
Jan 21 15° 32° -21° (1970) 64° (1957) 0.04" 0.3"
Jan 22 15° 32° -14° (1970) 58° (1964) 0.04" 0.3"
Jan 23 15° 32° -20° (1963) 55° (1967) 0.05" 0.3"
Jan 24 15° 33° -11° (2000) 61° (1967) 0.04" 0.4"
Jan 25 15° 33° -9° (1961) 63° (1981) 0.05" 0.3"
Jan 26 15° 33° -12° (1982) 61° (2002) 0.04" 0.3"
Jan 27 15° 33° -14° (1963) 62° (2002) 0.05" 0.3"
Jan 28 16° 33° -21° (1963) 55° (2008) 0.04" 0.3"
Jan 29 16° 33° -20° (1966) 55° (1988) 0.05" 0.3"
Jan 30 16° 33° -13° (1951) 58° (1988) 0.04" 0.2"
Jan 31 16° 33° -26° (1996) 69° (1989) 0.05" 0.3"
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