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) 1.85" 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
Jun 1 57° 76° 42° (1993) 91° (1988) 0.13" NA
Jun 2 57° 77° 47° (1956) 92° (1988) 0.14" NA
Jun 3 57° 77° 45° (1982) 89° (1972) 0.14" NA
Jun 4 58° 77° 45° (1969) 92° (1953) 0.14" NA
Jun 5 58° 78° 45° (1990) 94° (1971) 0.14" NA
Jun 6 58° 78° 47° (1982) 93° (1968) 0.14" NA
Jun 7 59° 78° 49° (1958) 92° (1988) 0.14" NA
Jun 8 59° 79° 47° (1978) 94° (1988) 0.14" NA
Jun 9 59° 79° 46° (1969) 97° (1985) 0.14" NA
Jun 10 59° 79° 43° (1972) 91° (1976) 0.15" NA
Jun 11 60° 79° 41° (1972) 94° (1954) 0.15" NA
Jun 12 60° 80° 48° (1955) 94° (1956) 0.15" NA
Jun 13 60° 80° 47° (1978) 94° (1976) 0.15" NA
Jun 14 61° 80° 50° (1955) 96° (1987) 0.15" NA
Jun 15 61° 80° 47° (1980) 99° (1987) 0.15" NA
Jun 16 61° 81° 46° (1980) 96° (1994) 0.15" NA
Jun 17 61° 81° 45° (1980) 94° (1962) 0.15" NA
Jun 18 62° 81° 48° (1950) 94° (1984) 0.15" NA
Jun 19 62° 81° 51° (1982) 99° (1953) 0.15" NA
Jun 20 62° 82° 49° (1980) 102° (1953) 0.15" NA
Jun 21 62° 82° 47° (1963) 103° (1988) 0.15" NA
Jun 22 63° 82° 46° (1963) 101° (1988) 0.14" NA
Jun 23 63° 82° 49° (1972) 98° (1988) 0.14" NA
Jun 24 63° 82° 49° (1972) 94° (1966) 0.14" NA
Jun 25 63° 83° 48° (1979) 101° (1988) 0.14" NA
Jun 26 63° 83° 51° (1986) 104° (1988) 0.14" NA
Jun 27 64° 83° 52° (1974) 98° (1971) 0.14" NA
Jun 28 64° 83° 49° (1992) 99° (1971) 0.14" NA
Jun 29 64° 83° 55° (1951) 97° (1964) 0.14" NA
Jun 30 64° 83° 53° (1982) 98° (1970) 0.13" NA
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