December weather in Atlanta, IL
The average temperature in Atlanta in December is 31.1°F (23.1°F–39.2°F). Average precipitation: 2.29 inches. Average snowfall is 4.9 inches.
December is a winter month in Atlanta, and is cooler than the annual average of 52.3°F. Daily temperatures swing about 16.1°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 9h 9m. For travel, December is cold.
Avg High
39.2°F
Avg Low
23.1°F
Precipitation
2.29 in
Snow
4.9 in
December records in Atlanta
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 64.0°F (1941) | 8.1°F (1964) | 1.51 in (2018) |
| December 2 | 68.0°F (1950) | 0.0°F (1942) | 1.12 in (1986) |
| December 3 | 72.0°F (1970) | -8.0°F (1929) | 5.18 in (1982) |
| December 4 | 69.1°F (1916) | -7.1°F (2025) | 1.08 in (1982) |
| December 5 | 72.0°F (1998) | -7.1°F (2025) | 1.15 in (1999) |
| December 6 | 70.0°F (1980) | -2.0°F (1977) | 1.46 in (1906) |
| December 7 | 68.0°F (1916) | -2.9°F (2005) | 1.40 in (1927) |
| December 8 | 64.9°F (1946) | -2.9°F (1909) | 0.85 in (1980) |
| December 9 | 69.1°F (1918) | -9.9°F (1958) | 1.70 in (1907) |
| December 10 | 64.9°F (1918) | -11.0°F (1917) | 1.09 in (1971) |
| December 11 | 66.0°F (1949) | -18.0°F (1917) | 1.55 in (1949) |
| December 12 | 66.9°F (2015) | -11.9°F (1962) | 1.44 in (1972) |
| December 13 | 64.0°F (1948) | -6.0°F (1958) | 1.09 in (1920) |
| December 14 | 66.9°F (1975) | -13.0°F (2025) | 1.91 in (2022) |
| December 15 | 70.0°F (1948) | -16.1°F (1917) | 1.18 in (1971) |
| December 16 | 64.0°F (2021) | -17.0°F (1932) | 0.76 in (1992) |
| December 17 | 64.0°F (1984) | -9.9°F (1914) | 0.85 in (1924) |
| December 18 | 63.0°F (1939) | -8.0°F (1922) | 2.18 in (1924) |
| December 19 | 60.1°F (1957) | -15.0°F (1983) | 0.63 in (1973) |
| December 20 | 63.0°F (1949) | -13.0°F (1914) | 0.97 in (1957) |
| December 21 | 62.1°F (1941) | -11.9°F (1963) | 2.81 in (1949) |
| December 22 | 61.0°F (1933) | -11.9°F (1963) | 0.78 in (1941) |
| December 23 | 64.9°F (1933) | -11.9°F (1983) | 2.26 in (1988) |
| December 24 | 64.9°F (1955) | -18.9°F (1983) | 0.98 in (2009) |
| December 25 | 64.0°F (2019) | -18.0°F (1983) | 2.06 in (1982) |
| December 26 | 64.9°F (2019) | -29.0°F (1914) | 1.68 in (2015) |
| December 27 | 69.1°F (2008) | -8.0°F (1935) | 1.35 in (1942) |
| December 28 | 70.0°F (2025) | -24.0°F (1924) | 1.96 in (2015) |
| December 29 | 72.0°F (1984) | -11.9°F (1917) | 0.70 in (1946) |
| December 30 | 61.0°F (1936) | -15.0°F (1917) | 1.14 in (1908) |
| December 31 | 62.1°F (1951) | -9.0°F (1983) | 1.45 in (2018) |