December weather in Coalton, IL
The average temperature in Coalton in December is 32.6°F (24.5°F–40.7°F). Average precipitation: 2.22 inches. Average snowfall is 3.2 inches.
December is a winter month in Coalton, and is cooler than the annual average of 53.6°F. Daily temperatures swing about 16.2°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 9h 15m. For travel, December is cold.
Avg High
40.7°F
Avg Low
24.5°F
Precipitation
2.22 in
Snow
3.2 in
December records in Coalton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 64.0°F (1982) | 10.9°F (2002) | 2.45 in (2006) |
| December 2 | 66.9°F (1982) | 9.0°F (1985) | 0.86 in (1986) |
| December 3 | 71.1°F (2012) | 8.1°F (2006) | 1.95 in (1982) |
| December 4 | 71.1°F (1998) | 5.0°F (1991) | 0.79 in (1983) |
| December 5 | 69.1°F (1998) | 3.0°F (2025) | 0.77 in (1999) |
| December 6 | 64.9°F (1998) | 3.0°F (1984) | 0.31 in (1950) |
| December 7 | 69.1°F (1998) | 1.9°F (2005) | 1.34 in (2004) |
| December 8 | 62.1°F (1980) | 1.9°F (2005) | 0.87 in (1987) |
| December 9 | 63.0°F (1991) | -2.9°F (2005) | 0.60 in (2007) |
| December 10 | 57.0°F (1990) | -6.0°F (1995) | 0.41 in (1949) |
| December 11 | 61.0°F (1979) | 1.0°F (1995) | 2.21 in (1983) |
| December 12 | 64.9°F (1979) | 1.0°F (2013) | 0.41 in (2010) |
| December 13 | 62.1°F (1991) | 1.9°F (1989) | 0.57 in (2001) |
| December 14 | 57.0°F (2006) | -5.1°F (1989) | 0.99 in (1948) |
| December 15 | 57.9°F (1984) | -6.0°F (1989) | 1.97 in (1987) |
| December 16 | 62.1°F (1984) | -14.1°F (1989) | 1.01 in (1992) |
| December 17 | 64.9°F (1984) | -13.0°F (1989) | 0.91 in (2001) |
| December 18 | 61.0°F (1984) | -6.0°F (1985) | 0.57 in (2002) |
| December 19 | 57.9°F (2002) | -14.1°F (1983) | 1.54 in (2002) |
| December 20 | 59.0°F (1997) | -17.0°F (1989) | 0.89 in (1987) |
| December 21 | 64.9°F (1988) | -13.0°F (1989) | 2.55 in (1949) |
| December 22 | 59.0°F (1984) | -20.9°F (1989) | 0.80 in (1990) |
| December 23 | 57.0°F (2025) | -20.9°F (1989) | 1.87 in (1988) |
| December 24 | 62.1°F (2025) | -20.0°F (1989) | 1.48 in (2008) |
| December 25 | 63.0°F (2023) | -14.1°F (1983) | 1.40 in (1982) |
| December 26 | 62.1°F (2025) | -9.0°F (1983) | 0.63 in (2024) |
| December 27 | 63.0°F (2008) | -6.0°F (1983) | 0.38 in (1988) |
| December 28 | 68.0°F (2025) | 1.9°F (2000) | 1.76 in (2008) |
| December 29 | 72.0°F (2025) | -7.1°F (1981) | 0.46 in (2024) |
| December 30 | 64.0°F (1984) | -11.9°F (1983) | 1.69 in (1990) |
| December 31 | 59.0°F (1992) | -8.0°F (1983) | 0.40 in (2006) |