Algonquin, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 13° 30° -27° (1985) 62° (1997) 1.86" 9.2"
February 17° 34° -22° (1996) 70° (2000) 1.62" 6.4"
March 27° 46° -8° (2002) 82° (1986) 2.29" 3"
April 37° 59° 11° (1982) 91° (1986) 3.69" 0.5"
May 48° 70° 28° (2004) 92° (2006) 4.2" 0"
June 58° 80° 36° (2003) 101° (1988) 3.98" 0"
July 63° 84° 45° (1979) 101° (2005) 3.8" 0"
August 61° 82° 40° (1986) 98° (2001) 4.8" 0"
September 52° 75° 29° (1995) 95° (1990) 3.37" 0"
October 40° 63° 18° (1988) 89° (1975) 2.91" 0"
November 30° 48° -7° (1976) 75° (2000) 3.13" 0.7"
December 18° 34° -24° (1983) 67° (2001) 2.18" 9.2"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jul 1 62° 84° 51° (1982) 92° (1996) 0.1" 0"
Jul 2 62° 84° 47° (2001) 92° (2002) 0.1" 0"
Jul 3 62° 84° 50° (1976) 93° (2002) 0.1" 0"
Jul 4 63° 84° 50° (1996) 94° (2002) 0.11" 0"
Jul 5 63° 84° 48° (1979) 96° (1990) 0.11" 0"
Jul 6 63° 84° 45° (1979) 94° (1988) 0.11" 0"
Jul 7 63° 84° 48° (1983) 96° (1988) 0.11" 0"
Jul 8 63° 84° 51° (1983) 96° (1980) 0.13" 0"
Jul 9 63° 84° 56° (1996) 94° (1988) 0.11" 0"
Jul 10 63° 84° 49° (1996) 96° (1989) 0.13" 0"
Jul 11 63° 84° 50° (1996) 99° (1989) 0.12" 0"
Jul 12 63° 84° 50° (1996) 93° (1976) 0.12" 0"
Jul 13 63° 84° 53° (1976) 94° (1995) 0.12" 0"
Jul 14 63° 84° 52° (2002) 101° (1995) 0.12" 0"
Jul 15 63° 84° 53° (2002) 98° (1995) 0.12" 0"
Jul 16 63° 84° 49° (1987) 99° (1988) 0.13" 0"
Jul 17 63° 84° 50° (1987) 99° (1988) 0.12" 0"
Jul 18 63° 84° 49° (1979) 97° (2005) 0.12" 0"
Jul 19 63° 84° 52° (2003) 93° (2002) 0.11" 0"
Jul 20 63° 84° 52° (2009) 95° (1983) 0.12" 0"
Jul 21 63° 84° 55° (2007) 94° (1987) 0.12" 0"
Jul 22 63° 84° 51° (1981) 97° (2002) 0.13" 0"
Jul 23 63° 84° 50° (1985) 97° (1983) 0.13" 0"
Jul 24 63° 84° 51° (2000) 94° (1999) 0.13" 0"
Jul 25 63° 83° 56° (1978) 101° (2005) 0.13" 0"
Jul 26 63° 83° 51° (1977) 94° (1999) 0.14" 0"
Jul 27 63° 83° 50° (1977) 97° (1997) 0.13" 0"
Jul 28 63° 83° 49° (1977) 91° (1989) 0.14" 0"
Jul 29 63° 83° 51° (1981) 97° (1983) 0.14" 0"
Jul 30 63° 83° 53° (1981) 96° (1999) 0.15" 0"
Jul 31 63° 83° 52° (1997) 98° (1999) 0.15" 0"
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