Algonquin, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 11° 28° -27° (1985) 62° (1997) 1.68" NA
February 16° 33° -22° (1996) 70° (2000) 1.38" NA
March 26° 44° -8° (2002) 82° (1986) 2.23" NA
April 36° 58° 11° (1982) 91° (1986) 3.91" NA
May 47° 69° 28° (2004) 92° (2006) 3.84" NA
June 57° 79° 36° (2003) 101° (1988) 4.31" NA
July 62° 83° 45° (1979) 101° (2005) 3.93" NA
August 60° 81° 40° (1986) 98° (2001) 4.43" NA
September 51° 74° 29° (1995) 95° (1990) 3.63" NA
October 40° 62° 18° (1988) 89° (1975) 2.66" NA
November 29° 46° -7° (1976) 75° (2000) 3.12" NA
December 17° 33° -24° (1983) 67° (2001) 2.1" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 62° 83° 49° (1977) 97° (2006) 0.13" NA
Aug 2 62° 83° 50° (1990) 98° (1988) 0.13" NA
Aug 3 62° 83° 50° (1976) 97° (1991) 0.14" NA
Aug 4 62° 83° 50° (1976) 96° (1988) 0.14" NA
Aug 5 62° 83° 50° (1978) 95° (1988) 0.14" NA
Aug 6 62° 82° 47° (1994) 92° (2001) 0.14" NA
Aug 7 62° 82° 48° (1990) 93° (2001) 0.14" NA
Aug 8 62° 82° 50° (1976) 98° (2001) 0.14" NA
Aug 9 62° 82° 52° (1976) 95° (1988) 0.14" NA
Aug 10 62° 82° 53° (1982) 95° (1983) 0.14" NA
Aug 11 61° 82° 50° (1982) 90° (1983) 0.14" NA
Aug 12 61° 82° 48° (2004) 92° (1988) 0.14" NA
Aug 13 61° 82° 48° (1986) 95° (1995) 0.14" NA
Aug 14 61° 81° 48° (2004) 93° (1995) 0.15" NA
Aug 15 61° 81° 45° (2004) 93° (1995) 0.15" NA
Aug 16 61° 81° 45° (1979) 92° (1988) 0.15" NA
Aug 17 60° 81° 48° (1976) 96° (1988) 0.15" NA
Aug 18 60° 81° 50° (1976) 98° (1988) 0.15" NA
Aug 19 60° 81° 50° (1977) 90° (1990) 0.15" NA
Aug 20 60° 81° 50° (1992) 97° (1983) 0.15" NA
Aug 21 59° 80° 47° (1985) 91° (2003) 0.15" NA
Aug 22 59° 80° 48° (2004) 95° (2003) 0.15" NA
Aug 23 59° 80° 52° (1987) 89° (1991) 0.15" NA
Aug 24 59° 80° 48° (1987) 91° (1998) 0.15" NA
Aug 25 59° 80° 48° (1977) 89° (1983) 0.14" NA
Aug 26 58° 79° 49° (1977) 96° (2003) 0.14" NA
Aug 27 58° 79° 53° (1982) 93° (1991) 0.14" NA
Aug 28 58° 79° 40° (1986) 92° (1976) 0.14" NA
Aug 29 57° 79° 43° (1986) 95° (1991) 0.14" NA
Aug 30 57° 79° 45° (1982) 89° (1980) 0.14" NA
Aug 31 57° 78° 49° (1976) 90° (1991) 0.14" NA
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