Ruma, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 20° 38° -16° (1985) 75° (1986) 2.32" NA
February 25° 44° -12° (1996) 83° (1962) 2.4" NA
March 35° 55° 0° (1980) 88° (1985) 3.73" NA
April 45° 66° 21° (1996) 93° (1989) 4.16" NA
May 55° 76° 30° (1976) 95° (1978) 4.04" NA
June 64° 84° 42° (1972) 103° (1988) 4.01" NA
July 68° 89° 47° (1972) 106° (1966) 4.25" NA
August 66° 87° 45° (1964) 107° (1962) 3.13" NA
September 59° 80° 34° (1984) 102° (1971) 3.41" NA
October 47° 69° 22° (1981) 94° (1963) 3.05" NA
November 36° 54° 3° (1964) 89° (1987) 4.21" NA
December 25° 42° -18° (1989) 75° (1970) 3.4" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 30° 47° 9° (1964) 74° (1970) 0.14" NA
Dec 2 30° 47° 9° (1985) 71° (1970) 0.13" NA
Dec 3 29° 46° 11° (1985) 75° (1970) 0.13" NA
Dec 4 29° 46° 9° (1991) 73° (1998) 0.13" NA
Dec 5 29° 46° 17° (1992) 73° (1998) 0.13" NA
Dec 6 28° 45° 4° (1977) 71° (1963) 0.13" NA
Dec 7 28° 45° 4° (1977) 71° (1966) 0.12" NA
Dec 8 27° 44° 9° (1976) 68° (1966) 0.12" NA
Dec 9 27° 44° 0° (1995) 68° (1965) 0.12" NA
Dec 10 27° 44° 1° (1977) 65° (1971) 0.12" NA
Dec 11 26° 43° 3° (1962) 66° (1990) 0.12" NA
Dec 12 26° 43° -5° (1962) 67° (1979) 0.12" NA
Dec 13 26° 43° 5° (1962) 67° (1984) 0.11" NA
Dec 14 25° 42° -1° (1985) 65° (1975) 0.11" NA
Dec 15 25° 42° -3° (1989) 65° (1971) 0.11" NA
Dec 16 25° 42° -13° (1989) 62° (1984) 0.11" NA
Dec 17 25° 41° -4° (1989) 70° (1984) 0.11" NA
Dec 18 24° 41° 0° (1964) 67° (1962) 0.11" NA
Dec 19 24° 41° -7° (1983) 69° (1976) 0.1" NA
Dec 20 24° 41° -5° (1983) 66° (1976) 0.1" NA
Dec 21 23° 40° -5° (1973) 68° (1978) 0.1" NA
Dec 22 23° 40° -18° (1989) 67° (1965) 0.1" NA
Dec 23 23° 40° -18° (1989) 63° (1965) 0.1" NA
Dec 24 23° 39° -11° (1983) 69° (1982) 0.1" NA
Dec 25 22° 39° -14° (1983) 64° (1982) 0.09" NA
Dec 26 22° 39° -12° (1983) 67° (1971) 0.09" NA
Dec 27 22° 39° 5° (1983) 70° (1971) 0.09" NA
Dec 28 22° 39° 4° (1961) 66° (1976) 0.09" NA
Dec 29 22° 38° -4° (1983) 73° (1984) 0.09" NA
Dec 30 21° 38° -5° (1983) 69° (1965) 0.09" NA
Dec 31 21° 38° -9° (1976) 65° (1965) 0.09" NA
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