December weather in Quincy, IL
The average temperature in Quincy in December is 32.3°F (24.5°F–40.2°F). Average precipitation: 1.73 inches.
December is a winter month in Quincy, and is cooler than the annual average of 53.7°F. Daily temperatures swing about 15.7°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 9h 11m. For travel, December is cold.
Avg High
40.2°F
Avg Low
24.5°F
Precipitation
1.73 in
Daylight
9h 11m
December records in Quincy
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 68.0°F (1995) | 12.9°F (1944) | 1.23 in (1985) |
| December 2 | 68.0°F (1995) | 7.0°F (1942) | 1.26 in (1982) |
| December 3 | 66.9°F (1995) | 3.0°F (1940) | 3.75 in (1982) |
| December 4 | 73.9°F (2012) | 5.0°F (1991) | 1.36 in (1947) |
| December 5 | 70.0°F (1998) | 5.0°F (1991) | 1.21 in (1999) |
| December 6 | 70.0°F (2001) | 1.0°F (1977) | 0.71 in (1943) |
| December 7 | 70.0°F (1980) | -0.9°F (1977) | 1.26 in (1980) |
| December 8 | 66.9°F (1946) | 1.9°F (2005) | 1.66 in (1980) |
| December 9 | 66.0°F (1940) | -2.0°F (1977) | 0.42 in (1992) |
| December 10 | 64.0°F (1939) | -2.9°F (1977) | 2.00 in (2003) |
| December 11 | 64.9°F (1979) | -7.1°F (1988) | 1.13 in (1983) |
| December 12 | 64.9°F (1990) | -4.0°F (1982) | 1.38 in (2020) |
| December 13 | 69.1°F (1991) | -2.9°F (2000) | 0.87 in (1946) |
| December 14 | 63.0°F (2015) | 1.9°F (2010) | 1.45 in (2022) |
| December 15 | 63.0°F (2021) | -4.0°F (1943) | 1.54 in (1971) |
| December 16 | 75.9°F (2021) | -6.0°F (1943) | 1.07 in (1940) |
| December 17 | 66.0°F (2006) | -2.0°F (1945) | 0.42 in (1967) |
| December 18 | 68.0°F (1939) | -7.1°F (1981) | 0.40 in (2002) |
| December 19 | 64.0°F (2002) | -16.1°F (1983) | 0.79 in (1973) |
| December 20 | 64.9°F (1941) | -11.9°F (1981) | 1.30 in (2011) |
| December 21 | 57.9°F (1941) | -8.0°F (1983) | 0.48 in (1949) |
| December 22 | 66.0°F (2006) | -8.0°F (1983) | 2.25 in (1949) |
| December 23 | 57.0°F (1941) | -11.0°F (1983) | 0.52 in (1979) |
| December 24 | 64.9°F (1982) | -16.1°F (1983) | 0.94 in (1965) |
| December 25 | 71.1°F (2021) | -18.0°F (1983) | 1.48 in (1982) |
| December 26 | 66.0°F (2019) | -18.0°F (1983) | 0.65 in (2016) |
| December 27 | 70.0°F (1946) | -5.1°F (1983) | 2.25 in (1942) |
| December 28 | 66.9°F (1946) | -4.0°F (2017) | 0.83 in (2015) |
| December 29 | 71.1°F (1984) | -11.0°F (1983) | 0.65 in (2019) |
| December 30 | 70.0°F (2022) | -13.0°F (1983) | 1.22 in (1971) |
| December 31 | 66.0°F (2004) | -11.9°F (1983) | 0.65 in (2006) |