Illiopolis, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 19° 36° -23° (1977) 73° (1909) 2.14" 4.8"
February 23° 41° -25° (1905) 76° (1972) 2.07" 4.2"
March 32° 53° -10° (1978) 89° (1929) 2.59" 1.7"
April 43° 66° 15° (1982) 93° (1987) 3.67" 0.2"
May 53° 76° 26° (1903) 101° (1934) 4.79" 0"
June 62° 85° 38° (1917) 105° (1954) 4.5" 0"
July 66° 88° 45° (1930) 113° (1954) 3.98" 0"
August 64° 86° 35° (1986) 106° (1983) 3.77" 0"
September 56° 80° 27° (1928) 104° (1954) 3.14" 0"
October 45° 68° 12° (1925) 96° (1953) 3.25" 0"
November 34° 53° -3° (1929) 83° (1933) 3.71" 0.2"
December 23° 39° -22° (1983) 72° (1970) 2.78" 4.9"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Oct 1 49° 74° 29° (1984) 92° (1919) 0.09" 0"
Oct 2 49° 74° 30° (1974) 96° (1953) 0.09" 0"
Oct 3 48° 73° 28° (1987) 95° (1922) 0.1" 0"
Oct 4 48° 73° 27° (1987) 93° (1922) 0.1" 0"
Oct 5 48° 72° 26° (1980) 92° (1922) 0.09" 0"
Oct 6 47° 72° 25° (1988) 91° (1916) 0.1" 0"
Oct 7 47° 71° 26° (1988) 95° (2007) 0.11" 0"
Oct 8 47° 71° 23° (1987) 93° (1939) 0.1" 0"
Oct 9 47° 71° 27° (1915) 89° (1905) 0.1" 0"
Oct 10 46° 70° 25° (1925) 89° (1938) 0.11" 0"
Oct 11 46° 70° 23° (1906) 89° (1962) 0.11" 0"
Oct 12 46° 69° 20° (1987) 92° (1962) 0.1" 0"
Oct 13 45° 69° 22° (1917) 89° (1989) 0.11" 0"
Oct 14 45° 69° 22° (1979) 87° (1947) 0.11" 0"
Oct 15 45° 68° 20° (1986) 91° (1938) 0.1" 0"
Oct 16 45° 68° 27° (1976) 88° (1938) 0.11" 0"
Oct 17 44° 67° 27° (1976) 89° (1950) 0.11" 0"
Oct 18 44° 67° 23° (1948) 88° (1953) 0.12" 0"
Oct 19 44° 67° 21° (1992) 86° (1908) 0.11" 0"
Oct 20 44° 66° 21° (1930) 87° (1953) 0.11" 0"
Oct 21 43° 66° 21° (1930) 88° (1953) 0.11" 0"
Oct 22 43° 65° 19° (1976) 87° (1947) 0.11" 0"
Oct 23 43° 65° 22° (1982) 86° (1963) 0.11" 0"
Oct 24 43° 65° 18° (1981) 83° (1921) 0.1" 0"
Oct 25 42° 64° 25° (1982) 85° (1940) 0.1" 0"
Oct 26 42° 64° 17° (1962) 85° (1927) 0.11" 0"
Oct 27 42° 63° 20° (1903) 87° (1927) 0.1" 0"
Oct 28 42° 63° 19° (1925) 87° (1927) 0.11" 0"
Oct 29 41° 62° 15° (1925) 83° (1922) 0.11" 0"
Oct 30 41° 62° 12° (1925) 87° (1950) 0.1" 0"
Oct 31 41° 61° 17° (1925) 85° (1950) 0.11" 0"
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