December weather in Champaign, IL
The average temperature in Champaign in December is 31.1°F (23.6°F–38.5°F). Average precipitation: 2.40 inches. Average snowfall is 4.8 inches.
December is a winter month in Champaign, and is cooler than the annual average of 52.3°F. Daily temperatures swing about 14.9°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 9h 10m. For travel, December is cold.
Avg High
38.5°F
Avg Low
23.6°F
Precipitation
2.40 in
Snow
4.8 in
December records in Champaign
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 68.0°F (1970) | 10.0°F (1985) | 1.26 in (2006) |
| December 2 | 69.1°F (1982) | 0.0°F (1942) | 2.35 in (1967) |
| December 3 | 71.1°F (2012) | -8.0°F (1929) | 0.93 in (1938) |
| December 4 | 71.1°F (1998) | 1.0°F (1991) | 1.17 in (1923) |
| December 5 | 68.0°F (1956) | 1.0°F (2025) | 1.33 in (1906) |
| December 6 | 69.1°F (1998) | -2.0°F (1977) | 1.05 in (1932) |
| December 7 | 66.0°F (1916) | 0.0°F (1977) | 2.74 in (1966) |
| December 8 | 64.9°F (1946) | -6.0°F (1909) | 0.92 in (1924) |
| December 9 | 64.9°F (1918) | -7.1°F (1909) | 0.71 in (2009) |
| December 10 | 64.0°F (1971) | -9.9°F (1917) | 1.38 in (1971) |
| December 11 | 64.0°F (1949) | -11.9°F (1917) | 1.20 in (1915) |
| December 12 | 66.0°F (2015) | -7.1°F (1962) | 1.47 in (1903) |
| December 13 | 64.0°F (1975) | -7.1°F (1903) | 1.10 in (1928) |
| December 14 | 63.0°F (1948) | -8.0°F (2025) | 1.95 in (1971) |
| December 15 | 70.0°F (1948) | -13.0°F (2025) | 1.41 in (2022) |
| December 16 | 64.0°F (1984) | -11.0°F (1951) | 0.65 in (1994) |
| December 17 | 62.1°F (1908) | -9.9°F (1914) | 1.54 in (1924) |
| December 18 | 60.1°F (1962) | -11.0°F (1983) | 1.94 in (1924) |
| December 19 | 59.0°F (1957) | -13.0°F (1983) | 1.35 in (2008) |
| December 20 | 64.0°F (1988) | -18.0°F (1989) | 0.83 in (2012) |
| December 21 | 63.0°F (1967) | -16.1°F (1989) | 1.97 in (1949) |
| December 22 | 57.0°F (1931) | -16.1°F (1989) | 1.81 in (1988) |
| December 23 | 64.0°F (1933) | -18.0°F (1989) | 1.36 in (1907) |
| December 24 | 59.0°F (1982) | -20.0°F (1983) | 1.29 in (1982) |
| December 25 | 63.0°F (2019) | -15.0°F (1983) | 1.18 in (2009) |
| December 26 | 64.0°F (2019) | -13.0°F (1914) | 0.51 in (1916) |
| December 27 | 62.1°F (1907) | -9.0°F (1935) | 2.72 in (2015) |
| December 28 | 68.0°F (1984) | -20.0°F (1924) | 1.41 in (2008) |
| December 29 | 68.0°F (2025) | -9.0°F (1983) | 2.41 in (1990) |
| December 30 | 63.0°F (1965) | -13.0°F (1909) | 1.96 in (1936) |
| December 31 | 64.0°F (1951) | -9.9°F (1967) | 1.17 in (1984) |