Fort Dearborn, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 18° 32° -24° (1985) 67° (1950) 2.17" NA
February 24° 38° -12° (1951) 71° (1976) 1.77" NA
March 32° 47° 0° (1962) 84° (1986) 3.01" NA
April 42° 59° 13° (1982) 91° (1986) 3.65" NA
May 51° 70° 32° (1954) 94° (1991) 3.7" NA
June 61° 80° 41° (1972) 104° (1988) 4.3" NA
July 66° 84° 51° (1975) 102° (1991) 3.68" NA
August 65° 83° 49° (1965) 101° (1988) 3.86" NA
September 57° 76° 37° (1974) 99° (1953) 3.21" NA
October 46° 64° 24° (1981) 92° (1971) 2.71" NA
November 35° 49° 0° (1950) 80° (1950) 3.32" NA
December 24° 37° -20° (1983) 69° (1982) 2.63" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Nov 1 41° 57° 27° (1954) 80° (1950) 0.1" NA
Nov 2 40° 56° 18° (1951) 76° (1961) 0.1" NA
Nov 3 40° 56° 14° (1951) 76° (1964) 0.11" NA
Nov 4 39° 55° 15° (1991) 76° (1987) 0.11" NA
Nov 5 39° 54° 15° (1951) 72° (1978) 0.11" NA
Nov 6 39° 54° 23° (1971) 77° (1978) 0.11" NA
Nov 7 38° 53° 16° (1991) 74° (1975) 0.11" NA
Nov 8 38° 53° 15° (1991) 65° (1949) 0.11" NA
Nov 9 38° 52° 19° (1991) 71° (1964) 0.11" NA
Nov 10 37° 52° 23° (1957) 70° (1949) 0.11" NA
Nov 11 37° 51° 17° (1950) 74° (1964) 0.11" NA
Nov 12 37° 51° 20° (1976) 70° (1949) 0.11" NA
Nov 13 36° 50° 7° (1986) 66° (1954) 0.11" NA
Nov 14 36° 50° 16° (1986) 74° (1989) 0.12" NA
Nov 15 35° 50° 19° (1982) 68° (1953) 0.12" NA
Nov 16 35° 49° 9° (1959) 71° (1952) 0.12" NA
Nov 17 35° 49° 4° (1959) 74° (1952) 0.12" NA
Nov 18 34° 48° 14° (1959) 71° (1953) 0.12" NA
Nov 19 34° 48° 20° (1951) 72° (1953) 0.11" NA
Nov 20 33° 47° 15° (1964) 69° (1991) 0.11" NA
Nov 21 33° 47° 8° (1964) 64° (1977) 0.11" NA
Nov 22 33° 46° 13° (1964) 65° (1990) 0.11" NA
Nov 23 32° 46° 1° (1950) 62° (1973) 0.11" NA
Nov 24 32° 45° 0° (1950) 69° (1966) 0.11" NA
Nov 25 31° 45° 2° (1950) 61° (1966) 0.11" NA
Nov 26 31° 44° 6° (1977) 63° (1965) 0.11" NA
Nov 27 31° 44° 10° (1955) 67° (1990) 0.11" NA
Nov 28 30° 44° 4° (1955) 64° (1990) 0.11" NA
Nov 29 30° 43° 2° (1976) 55° (1991) 0.11" NA
Nov 30 29° 43° 4° (1958) 63° (1975) 0.1" NA
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