Great Lakes, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 12° 28° -27° (1985) 64° (1989) 1.6" NA
February 17° 33° -22° (1996) 71° (2000) 1.4" NA
March 26° 43° -12° (1962) 81° (1986) 2.15" NA
April 36° 55° 8° (1982) 90° (1980) 3.73" NA
May 46° 67° 24° (1966) 93° (1987) 3.44" NA
June 55° 77° 34° (1992) 101° (1988) 3.62" NA
July 61° 82° 45° (2001) 102° (1995) 3.49" NA
August 61° 80° 40° (1986) 102° (1988) 4.22" NA
September 52° 73° 29° (1974) 100° (1953) 3.4" NA
October 41° 62° 18° (1981) 90° (1963) 2.42" NA
November 30° 47° -5° (1950) 79° (1950) 2.57" NA
December 18° 34° -23° (1983) 69° (2001) 2.05" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Nov 1 35° 54° 21° (1984) 79° (1950) 0.08" NA
Nov 2 35° 54° 14° (1951) 75° (1961) 0.08" NA
Nov 3 35° 53° 8° (1951) 75° (1964) 0.08" NA
Nov 4 34° 53° 13° (1951) 73° (1964) 0.08" NA
Nov 5 34° 52° 6° (1951) 68° (1975) 0.08" NA
Nov 6 33° 52° 17° (1951) 75° (1978) 0.08" NA
Nov 7 33° 51° 11° (1991) 74° (1975) 0.09" NA
Nov 8 33° 51° 8° (1991) 67° (1964) 0.09" NA
Nov 9 32° 50° 11° (1991) 73° (1949) 0.09" NA
Nov 10 32° 50° 17° (1957) 74° (1999) 0.09" NA
Nov 11 32° 49° 12° (1950) 73° (1964) 0.09" NA
Nov 12 31° 49° 15° (1995) 68° (1949) 0.09" NA
Nov 13 31° 49° 15° (1995) 68° (1964) 0.09" NA
Nov 14 31° 48° 12° (1959) 70° (1958) 0.09" NA
Nov 15 30° 48° 9° (1959) 71° (1953) 0.09" NA
Nov 16 30° 47° 15° (1982) 70° (1953) 0.09" NA
Nov 17 29° 47° 1° (1959) 71° (1953) 0.09" NA
Nov 18 29° 46° 7° (1959) 71° (1953) 0.09" NA
Nov 19 29° 46° 14° (1951) 73° (1953) 0.09" NA
Nov 20 28° 45° 13° (1964) 67° (1991) 0.09" NA
Nov 21 28° 45° 6° (1964) 63° (1982) 0.09" NA
Nov 22 28° 44° 9° (1964) 65° (1990) 0.09" NA
Nov 23 27° 44° -1° (1950) 62° (1999) 0.09" NA
Nov 24 27° 43° -5° (1950) 63° (1999) 0.08" NA
Nov 25 26° 43° -4° (1950) 60° (1966) 0.08" NA
Nov 26 26° 42° 2° (1977) 64° (1984) 0.08" NA
Nov 27 25° 42° 1° (1977) 67° (1990) 0.08" NA
Nov 28 25° 41° 0° (1955) 67° (1990) 0.08" NA
Nov 29 25° 41° -3° (1976) 65° (1998) 0.08" NA
Nov 30 24° 40° -3° (1976) 67° (1998) 0.08" NA
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