Blue Island, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 18° 31° -25° (1985) 67° (1989) 2.06" 11.5"
February 22° 36° -20° (1933) 75° (1976) 2.02" 9.1"
March 31° 47° -7° (1943) 86° (1986) 2.72" 5.4"
April 42° 59° 10° (1982) 92° (1942) 3.64" 1"
May 52° 70° 28° (1981) 102° (1934) 4.13" 0"
June 62° 80° 35° (1945) 107° (1934) 4.06" 0"
July 68° 84° 46° (1972) 106° (1995) 4.01" 0"
August 66° 82° 43° (1965) 102° (1991) 3.99" 0"
September 58° 75° 34° (1984) 101° (1953) 3.31" 0"
October 46° 63° 20° (1981) 94° (1963) 3.24" 0.1"
November 35° 49° -3° (1930) 81° (1950) 3.42" 1.3"
December 23° 35° -20° (1983) 71° (1970) 2.57" 8.7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Oct 1 51° 69° 32° (1974) 92° (1971) 0.1" 0"
Oct 2 50° 69° 28° (1974) 91° (1971) 0.09" 0"
Oct 3 50° 68° 29° (1974) 91° (1954) 0.1" 0"
Oct 4 50° 68° 34° (1989) 90° (1951) 0.11" 0"
Oct 5 49° 67° 31° (1980) 89° (1997) 0.1" 0"
Oct 6 49° 67° 28° (1952) 94° (1963) 0.1" 0"
Oct 7 49° 66° 31° (2000) 88° (2007) 0.1" 0"
Oct 8 48° 66° 30° (1952) 88° (2007) 0.09" 0"
Oct 9 48° 66° 32° (1945) 87° (2010) 0.11" 0"
Oct 10 48° 65° 27° (1964) 87° (1938) 0.1" 0"
Oct 11 47° 65° 29° (2009) 88° (1928) 0.1" 0"
Oct 12 47° 64° 30° (1987) 86° (1930) 0.1" 0"
Oct 13 47° 64° 30° (1980) 88° (1975) 0.1" 0"
Oct 14 46° 64° 28° (1937) 89° (1975) 0.11" 0"
Oct 15 46° 63° 29° (1937) 88° (1947) 0.1" 0"
Oct 16 46° 63° 30° (1944) 87° (1963) 0.1" 0"
Oct 17 45° 62° 26° (1948) 86° (1950) 0.1" 0"
Oct 18 45° 62° 20° (1948) 87° (1950) 0.11" 0"
Oct 19 45° 62° 24° (1930) 84° (1971) 0.1" 0"
Oct 20 44° 61° 20° (1930) 86° (1953) 0.1" 0"
Oct 21 44° 61° 26° (1952) 87° (1953) 0.11" 0"
Oct 22 44° 60° 24° (1930) 87° (1953) 0.11" 0.1"
Oct 23 44° 60° 25° (1981) 85° (1963) 0.11" 0"
Oct 24 43° 60° 20° (1981) 83° (1963) 0.1" 0"
Oct 25 43° 59° 25° (1962) 79° (1963) 0.11" 0"
Oct 26 43° 59° 22° (1942) 84° (1963) 0.11" 0"
Oct 27 42° 58° 24° (1942) 82° (1940) 0.11" 0"
Oct 28 42° 58° 25° (1976) 81° (1999) 0.12" 0"
Oct 29 42° 58° 22° (1980) 79° (1937) 0.11" 0"
Oct 30 41° 57° 25° (1928) 85° (1950) 0.12" 0"
Oct 31 41° 57° 27° (1930) 84° (1950) 0.11" 0"
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