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
Oct 1 51° 70° 32° (1974) 92° (1971) 0.1" NA
Oct 2 50° 69° 28° (1974) 91° (1971) 0.09" NA
Oct 3 50° 69° 29° (1974) 91° (1954) 0.09" NA
Oct 4 50° 69° 34° (1989) 90° (1951) 0.09" NA
Oct 5 49° 68° 31° (1980) 89° (1997) 0.09" NA
Oct 6 49° 68° 28° (1952) 94° (1963) 0.09" NA
Oct 7 48° 67° 31° (2000) 88° (2007) 0.09" NA
Oct 8 48° 67° 30° (1952) 88° (2007) 0.09" NA
Oct 9 48° 67° 32° (1945) 86° (1949) 0.09" NA
Oct 10 47° 66° 27° (1964) 87° (1938) 0.09" NA
Oct 11 47° 66° 30° (1932) 88° (1928) 0.09" NA
Oct 12 46° 65° 30° (1987) 86° (1930) 0.09" NA
Oct 13 46° 65° 30° (1980) 88° (1975) 0.09" NA
Oct 14 46° 64° 28° (1937) 89° (1975) 0.09" NA
Oct 15 45° 64° 29° (1937) 88° (1947) 0.09" NA
Oct 16 45° 63° 30° (1944) 87° (1963) 0.08" NA
Oct 17 44° 63° 26° (1948) 86° (1950) 0.08" NA
Oct 18 44° 62° 20° (1948) 87° (1950) 0.09" NA
Oct 19 44° 62° 24° (1930) 84° (1971) 0.09" NA
Oct 20 43° 62° 20° (1930) 86° (1953) 0.09" NA
Oct 21 43° 61° 26° (1952) 87° (1953) 0.09" NA
Oct 22 43° 61° 24° (1930) 87° (1953) 0.09" NA
Oct 23 42° 60° 25° (1981) 85° (1963) 0.09" NA
Oct 24 42° 60° 20° (1981) 83° (1963) 0.09" NA
Oct 25 41° 59° 25° (1962) 79° (1963) 0.09" NA
Oct 26 41° 58° 22° (1942) 84° (1963) 0.09" NA
Oct 27 41° 58° 24° (1942) 82° (1940) 0.09" NA
Oct 28 40° 57° 25° (1976) 81° (1999) 0.09" NA
Oct 29 40° 57° 22° (1980) 79° (1937) 0.09" NA
Oct 30 40° 56° 25° (1928) 85° (1950) 0.09" NA
Oct 31 39° 56° 27° (1930) 84° (1950) 0.1" NA
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