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
Dec 1 -3.3° 6.1° -9° (2002) 20° (1995) 0.1" NA
Dec 2 -3.3° 6.1° -14° (1985) 19° (1982) 0.09" NA
Dec 3 -3.3° 5.6° -14° (1985) 19° (1995) 0.09" NA
Dec 4 -3.9° 5.6° -15° (1991) 19° (1998) 0.09" NA
Dec 5 -3.9° 5.6° -15° (1991) 21° (1998) 0.09" NA
Dec 6 -4.4° -17° (1977) 21° (2001) 0.09" NA
Dec 7 -4.4° -18° (1977) 21° (1980) 0.08" NA
Dec 8 -4.4° 4.4° -17.8° (2006) 16° (1991) 0.08" NA
Dec 9 -5° 4.4° -19° (1977) 19° (1991) 0.08" NA
Dec 10 -5° 4.4° -19° (1977) 16° (1990) 0.08" NA
Dec 11 -5.6° 3.9° -18° (1977) 18° (1979) 0.08" NA
Dec 12 -5.6° 3.9° -18° (1988) 18° (1990) 0.08" NA
Dec 13 -5.6° 3.3° -19° (2000) 21° (1991) 0.08" NA
Dec 14 -6.1° 3.3° -16° (1985) 14° (1995) 0.07" NA
Dec 15 -6.1° 3.3° -16° (1985) 13.9° (2006) 0.07" NA
Dec 16 -6.1° 2.8° -16° (1988) 16° (1984) 0.07" NA
Dec 17 -6.7° 2.8° -17° (2000) 18.9° (2006) 0.07" NA
Dec 18 -6.7° 2.8° -22° (1981) 14° (2002) 0.07" NA
Dec 19 -6.7° 2.8° -27° (1983) 18° (2002) 0.07" NA
Dec 20 -6.7° 2.2° -24° (1981) 17° (1988) 0.07" NA
Dec 21 -7.2° 2.2° -22° (1983) 13° (1988) 0.06" NA
Dec 22 -7.2° 2.2° -22° (1983) 16° (1984) 0.06" NA
Dec 23 -7.2° 2.2° -24° (1983) 13° (2001) 0.06" NA
Dec 24 -7.2° 1.7° -27° (1983) 18° (1982) 0.06" NA
Dec 25 -7.8° 1.7° -28° (1983) 15° (1982) 0.06" NA
Dec 26 -7.8° 1.7° -28° (1983) 12° (1982) 0.06" NA
Dec 27 -7.8° 1.7° -25° (1983) 9° (1988) 0.06" NA
Dec 28 -7.8° 1.7° -18° (2000) 17° (1984) 0.05" NA
Dec 29 -8.3° 1.1° -24° (1983) 22° (1984) 0.05" NA
Dec 30 -8.3° 1.1° -25° (1983) 16° (1999) 0.05" NA
Dec 31 -8.3° 1.1° -24° (1983) 19° (2004) 0.05" NA
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