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
Mar 1 21° 38° -2° (1980) 64° (2000) 0.05" NA
Mar 2 21° 38° 2° (1980) 66° (1992) 0.05" NA
Mar 3 21° 39° 0° (1996) 67° (1983) 0.05" NA
Mar 4 22° 39° -8° (2002) 73° (1983) 0.05" NA
Mar 5 22° 40° -8° (2002) 70° (1983) 0.05" NA
Mar 6 22° 40° -1° (1978) 74° (1983) 0.06" NA
Mar 7 23° 40° 2° (1996) 70° (2000) 0.06" NA
Mar 8 23° 41° -2° (1996) 77° (2000) 0.06" NA
Mar 9 24° 41° -1° (1996) 74° (2000) 0.06" NA
Mar 10 24° 42° -1° (2003) 65° (1977) 0.06" NA
Mar 11 24° 42° 1° (2003) 64° (1977) 0.06" NA
Mar 12 25° 43° 5° (1979) 71° (1990) 0.06" NA
Mar 13 25° 43° 8° (1998) 77° (1990) 0.06" NA
Mar 14 25° 43° 6° (1993) 73° (2007) 0.07" NA
Mar 15 26° 44° 5° (1979) 73° (1995) 0.07" NA
Mar 16 26° 44° 7° (1979) 73° (1995) 0.07" NA
Mar 17 26° 45° 13° (1976) 68° (1995) 0.07" NA
Mar 18 27° 45° 11° (1993) 74° (2003) 0.07" NA
Mar 19 27° 46° 14° (1989) 67° (1976) 0.07" NA
Mar 20 27° 46° 10° (1986) 74° (1976) 0.08" NA
Mar 21 28° 46° 11° (1986) 66° (1976) 0.08" NA
Mar 22 28° 47° 11° (1983) 69° (1991) 0.08" NA
Mar 23 29° 47° 11° (1983) 69° (1979) 0.08" NA
Mar 24 29° 48° 15° (1983) 74° (1994) 0.09" NA
Mar 25 29° 48° 13° (1983) 72° (2003) 0.09" NA
Mar 26 30° 49° 14° (1979) 79° (2007) 0.09" NA
Mar 27 30° 49° 12° (1996) 78° (2007) 0.09" NA
Mar 28 30° 49° 12° (1996) 77° (1998) 0.1" NA
Mar 29 30° 50° 22° (1982) 75° (1981) 0.1" NA
Mar 30 31° 50° 21° (1987) 82° (1986) 0.1" NA
Mar 31 31° 51° 16° (1987) 79° (1998) 0.1" NA
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