Quincy, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 16° 34° -21° (1979) 70° (2004) 1.36" NA
February 21° 40° -17° (1979) 74° (1996) 1.74" NA
March 30° 52° -12° (1978) 85° (1986) 2.93" NA
April 41° 65° 17° (1982) 92° (1986) 3.48" NA
May 51° 75° 33° (2005) 92° (2006) 4.61" NA
June 61° 84° 45° (1993) 102° (1988) 3.26" NA
July 66° 88° 52° (1983) 105° (2005) 3.89" NA
August 63° 86° 44° (1974) 105° (2003) 3.09" NA
September 55° 78° 32° (1983) 98° (2000) 3.45" NA
October 43° 66° 22° (1981) 93° (1997) 2.5" NA
November 33° 51° 0° (1953) 83° (1987) 3.1" NA
December 21° 38° -18° (1983) 71° (1984) 2.22" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 26° 43° 16° (2002) 68° (1995) 0.1" NA
Dec 2 26° 43° 7° (1985) 66° (1982) 0.09" NA
Dec 3 26° 42° 6° (1985) 67° (1995) 0.09" NA
Dec 4 25° 42° 5° (1991) 66° (1998) 0.09" NA
Dec 5 25° 42° 5° (1991) 70° (1998) 0.09" NA
Dec 6 24° 41° 1° (1977) 70° (2001) 0.09" NA
Dec 7 24° 41° -1° (1977) 70° (1980) 0.08" NA
Dec 8 24° 40° 0° (2006) 61° (1991) 0.08" NA
Dec 9 23° 40° -2° (1977) 67° (1991) 0.08" NA
Dec 10 23° 40° -3° (1977) 60° (1990) 0.08" NA
Dec 11 22° 39° 0° (1977) 65° (1979) 0.08" NA
Dec 12 22° 39° 0° (1988) 65° (1990) 0.08" NA
Dec 13 22° 38° -3° (2000) 69° (1991) 0.08" NA
Dec 14 21° 38° 3° (1985) 58° (1995) 0.07" NA
Dec 15 21° 38° 4° (1985) 57° (2006) 0.07" NA
Dec 16 21° 37° 4° (1988) 61° (1984) 0.07" NA
Dec 17 20° 37° 1° (2000) 66° (2006) 0.07" NA
Dec 18 20° 37° -7° (1981) 58° (2002) 0.07" NA
Dec 19 20° 37° -16° (1983) 64° (2002) 0.07" NA
Dec 20 20° 36° -12° (1981) 62° (1988) 0.07" NA
Dec 21 19° 36° -8° (1983) 56° (1988) 0.06" NA
Dec 22 19° 36° -8° (1983) 60° (1984) 0.06" NA
Dec 23 19° 36° -11° (1983) 56° (2001) 0.06" NA
Dec 24 19° 35° -16° (1983) 65° (1982) 0.06" NA
Dec 25 18° 35° -18° (1983) 59° (1982) 0.06" NA
Dec 26 18° 35° -18° (1983) 54° (1982) 0.06" NA
Dec 27 18° 35° -13° (1983) 48° (1988) 0.06" NA
Dec 28 18° 35° 0° (2000) 63° (1984) 0.05" NA
Dec 29 17° 34° -11° (1983) 71° (1984) 0.05" NA
Dec 30 17° 34° -13° (1983) 60° (1999) 0.05" NA
Dec 31 17° 34° -12° (1983) 66° (2004) 0.05" NA
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