Chicago, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -8° -31.1° (1985) 19.4° (1950) 2.17" NA
February -4° -24.4° (1951) 21.7° (1976) 1.77" NA
March -17.8° (1962) 28.9° (1986) 3.01" NA
April 15° -10.6° (1982) 32.8° (1986) 3.65" NA
May 11° 21° 0° (1954) 34.4° (1991) 3.7" NA
June 16° 27° 5° (1972) 40° (1988) 4.3" NA
July 19° 29° 10.6° (1975) 38.9° (1991) 3.68" NA
August 18° 28° 9.4° (1965) 38.3° (1988) 3.86" NA
September 14° 24° 2.8° (1974) 37.2° (1953) 3.21" NA
October 18° -4.4° (1981) 33.3° (1971) 2.71" NA
November -17.8° (1950) 26.7° (1950) 3.32" NA
December -4° -28.9° (1983) 20.6° (1982) 2.63" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 -1.7° 5.6° -12° (1966) 19° (1970) 0.1" NA
Dec 2 -2.2° 5.6° -15° (1976) 21° (1982) 0.1" NA
Dec 3 -2.2° -14° (1985) 21° (1982) 0.1" NA
Dec 4 -2.2° -16° (1991) 17° (1961) 0.1" NA
Dec 5 -2.8° -15° (1991) 18° (1975) 0.1" NA
Dec 6 -2.8° 4.4° -16° (1977) 18° (1951) 0.09" NA
Dec 7 -3.3° 4.4° -18° (1977) 16° (1980) 0.09" NA
Dec 8 -3.3° 4.4° -16° (1958) 17° (1966) 0.09" NA
Dec 9 -3.3° 3.9° -20° (1958) 16° (1991) 0.09" NA
Dec 10 -3.9° 3.9° -21° (1978) 15° (1971) 0.09" NA
Dec 11 -3.9° 3.3° -18° (1962) 17° (1949) 0.09" NA
Dec 12 -3.9° 3.3° -20° (1962) 14° (1990) 0.09" NA
Dec 13 -4.4° 3.3° -17° (1963) 16° (1991) 0.09" NA
Dec 14 -4.4° 2.8° -19° (1985) 18° (1975) 0.08" NA
Dec 15 -4.4° 2.8° -21° (1951) 18° (1975) 0.08" NA
Dec 16 -5° 2.8° -23° (1951) 16° (1984) 0.08" NA
Dec 17 -5° 2.8° -18° (1951) 17° (1984) 0.08" NA
Dec 18 -5° 2.2° -21° (1985) 13° (1977) 0.08" NA
Dec 19 -5.6° 2.2° -23° (1983) 13° (1957) 0.08" NA
Dec 20 -5.6° 2.2° -21° (1963) 14° (1949) 0.08" NA
Dec 21 -5.6° 1.7° -25° (1989) 16° (1967) 0.08" NA
Dec 22 -6.1° 1.7° -24° (1989) 13° (1957) 0.08" NA
Dec 23 -6.1° 1.7° -24° (1983) 14° (1982) 0.08" NA
Dec 24 -6.1° 1.7° -29° (1983) 16° (1982) 0.08" NA
Dec 25 -6.1° 1.1° -24° (1983) 17° (1982) 0.08" NA
Dec 26 -6.7° 1.1° -21° (1983) 17° (1982) 0.08" NA
Dec 27 -6.7° 1.1° -19° (1950) 14° (1959) 0.08" NA
Dec 28 -6.7° 1.1° -19° (1961) 18° (1984) 0.08" NA
Dec 29 -6.7° 0.6° -21° (1976) 19° (1984) 0.07" NA
Dec 30 -7.2° 0.6° -21° (1983) 14° (1965) 0.07" NA
Dec 31 -7.2° 0.6° -23° (1967) 14° (1965) 0.07" NA
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