Quincy, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -9° -29.4° (1979) 21.1° (2004) 1.36" NA
February -6° -27.2° (1979) 23.3° (1996) 1.74" NA
March -1° 11° -24.4° (1978) 29.4° (1986) 2.93" NA
April 18° -8.3° (1982) 33.3° (1986) 3.48" NA
May 11° 24° 0.6° (2005) 33.3° (2006) 4.61" NA
June 16° 29° 7.2° (1993) 38.9° (1988) 3.26" NA
July 19° 31° 11.1° (1983) 40.6° (2005) 3.89" NA
August 17° 30° 6.7° (1974) 40.6° (2003) 3.09" NA
September 13° 26° 0° (1983) 36.7° (2000) 3.45" NA
October 19° -5.6° (1981) 33.9° (1997) 2.5" NA
November 11° -17.8° (1953) 28.3° (1987) 3.1" NA
December -6° -27.8° (1983) 21.7° (1984) 2.22" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 18.3° 31.1° 12° (1977) 39.4° (2006) 0.11" NA
Aug 2 18.3° 31.1° 12° (1977) 38.9° (2006) 0.11" NA
Aug 3 18.3° 31.1° 13° (1974) 39.4° (2006) 0.11" NA
Aug 4 18.3° 31.1° 10° (1974) 38° (1988) 0.11" NA
Aug 5 18.3° 31.1° 11° (1974) 38° (1988) 0.1" NA
Aug 6 18.3° 30.6° 11° (1978) 36° (1979) 0.1" NA
Aug 7 18.3° 30.6° 11° (1978) 37.8° (2006) 0.1" NA
Aug 8 17.8° 30.6° 11° (1989) 36° (1979) 0.1" NA
Aug 9 17.8° 30.6° 11° (1989) 39° (1988) 0.1" NA
Aug 10 17.8° 30.6° 7° (1974) 38° (2001) 0.1" NA
Aug 11 17.8° 30.6° 12° (1979) 36° (1980) 0.1" NA
Aug 12 17.8° 30.6° 11° (1977) 36.7° (2007) 0.1" NA
Aug 13 17.8° 30.6° 9° (1979) 36.7° (2007) 0.1" NA
Aug 14 17.2° 30° 11° (2004) 35° (1980) 0.09" NA
Aug 15 17.2° 30° 11° (2004) 36.7° (2007) 0.09" NA
Aug 16 17.2° 30° 11° (2004) 38° (1988) 0.09" NA
Aug 17 17.2° 30° 12° (1992) 38° (1988) 0.09" NA
Aug 18 17.2° 30° 11° (1977) 38° (1983) 0.09" NA
Aug 19 17.2° 30° 11° (1977) 39° (1988) 0.09" NA
Aug 20 16.7° 29.4° 11° (1978) 37° (1983) 0.09" NA
Aug 21 16.7° 29.4° 11° (1978) 38° (2003) 0.1" NA
Aug 22 16.7° 29.4° 13° (1981) 39° (2003) 0.1" NA
Aug 23 16.7° 29.4° 13° (1977) 34° (2001) 0.1" NA
Aug 24 16.1° 28.9° 13° (1984) 36.1° (2007) 0.1" NA
Aug 25 16.1° 28.9° 12° (1977) 37° (1998) 0.1" NA
Aug 26 16.1° 28.9° 12° (1977) 37° (2003) 0.1" NA
Aug 27 16.1° 28.9° 12° (1992) 41° (2003) 0.1" NA
Aug 28 16.1° 28.3° 12° (1992) 38° (1983) 0.1" NA
Aug 29 15.6° 28.3° 10° (1988) 38° (1984) 0.1" NA
Aug 30 15.6° 28.3° 9° (1988) 38° (1984) 0.11" NA
Aug 31 15.6° 28.3° 9° (1988) 35° (1984) 0.11" NA
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