Blue Island, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 16° 31° -25° (1985) 67° (1989) 1.95" 12.6"
February 21° 36° -20° (1933) 75° (1976) 1.78" 10.3"
March 31° 47° -7° (1943) 86° (1986) 2.83" 5.7"
April 40° 59° 10° (1982) 92° (1942) 3.82" 1.4"
May 51° 71° 28° (1981) 102° (1934) 3.86" 0"
June 61° 81° 35° (1945) 107° (1934) 4.16" 0"
July 66° 85° 46° (1972) 106° (1995) 3.82" 0"
August 65° 82° 43° (1965) 102° (1991) 3.91" 0"
September 57° 75° 34° (1984) 101° (1953) 3.45" 0"
October 45° 63° 20° (1981) 94° (1963) 2.79" 0.1"
November 34° 48° -3° (1930) 81° (1950) 3.22" 2.4"
December 22° 36° -20° (1983) 71° (1970) 2.76" 10.4"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 67° 84° 55° (1976) 100° (1988) 0.12" NA
Aug 2 67° 84° 56° (1965) 102° (1991) 0.12" NA
Aug 3 67° 84° 52° (1950) 98° (1964) 0.12" NA
Aug 4 67° 84° 55° (1978) 99° (1956) 0.12" NA
Aug 5 67° 84° 52° (1972) 94° (1980) 0.12" NA
Aug 6 67° 84° 50° (1948) 95° (1968) 0.12" NA
Aug 7 67° 84° 53° (1976) 96° (1984) 0.12" NA
Aug 8 66° 84° 52° (1976) 99° (1988) 0.12" NA
Aug 9 66° 84° 51° (1972) 96° (1984) 0.12" NA
Aug 10 66° 83° 49° (1972) 95° (1971) 0.12" NA
Aug 11 66° 83° 50° (1982) 95° (1995) 0.13" NA
Aug 12 66° 83° 51° (1967) 100° (1995) 0.13" NA
Aug 13 66° 83° 52° (1967) 99° (1995) 0.13" NA
Aug 14 66° 83° 48° (1964) 98° (1995) 0.13" NA
Aug 15 65° 83° 51° (1964) 94° (1988) 0.13" NA
Aug 16 65° 82° 49° (1976) 101° (1988) 0.13" NA
Aug 17 65° 82° 48° (1976) 99° (1988) 0.13" NA
Aug 18 65° 82° 49° (1963) 95° (1955) 0.13" NA
Aug 19 65° 82° 54° (1950) 99° (1983) 0.13" NA
Aug 20 65° 82° 47° (1950) 97° (1955) 0.13" NA
Aug 21 64° 82° 46° (1950) 99° (1955) 0.13" NA
Aug 22 64° 81° 54° (1949) 96° (1959) 0.13" NA
Aug 23 64° 81° 53° (1952) 95° (1948) 0.13" NA
Aug 24 64° 81° 52° (1951) 98° (1948) 0.13" NA
Aug 25 63° 81° 51° (1958) 95° (1948) 0.13" NA
Aug 26 63° 81° 49° (1964) 97° (1953) 0.13" NA
Aug 27 63° 80° 48° (1982) 97° (1948) 0.13" NA
Aug 28 63° 80° 46° (1982) 97° (1953) 0.13" NA
Aug 29 62° 80° 43° (1965) 98° (1953) 0.13" NA
Aug 30 62° 80° 50° (1986) 96° (1953) 0.12" NA
Aug 31 62° 80° 50° (1949) 99° (1953) 0.12" NA
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