December weather in Stone Mountain, GA
The average temperature in Stone Mountain in December is 44.9°F (35.5°F–54.4°F). Average precipitation: 4.36 inches.
December is a winter month in Stone Mountain, and is cooler than the annual average of 61.5°F. Daily temperatures swing about 18.9°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 9h 46m. For travel, December is cool.
Avg High
54.4°F
Avg Low
35.5°F
Precipitation
4.36 in
Daylight
9h 46m
December records in Stone Mountain
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 73.9°F (1998) | 25.2°F (2024) | 2.01 in (2018) |
| December 2 | 73.0°F (1998) | 24.1°F (2002) | 2.23 in (2009) |
| December 3 | 75.9°F (2021) | 25.2°F (2008) | 0.24 in (2013) |
| December 4 | 75.9°F (1998) | 22.1°F (2024) | 1.29 in (2005) |
| December 5 | 75.9°F (1998) | 27.0°F (2000) | 1.54 in (2022) |
| December 6 | 75.0°F (1998) | 21.2°F (2024) | 0.81 in (2011) |
| December 7 | 73.9°F (2001) | 22.1°F (2010) | 0.30 in (2011) |
| December 8 | 75.9°F (2022) | 19.2°F (2006) | 1.65 in (2018) |
| December 9 | 75.9°F (2007) | 18.1°F (2006) | 1.57 in (2004) |
| December 10 | 77.0°F (2007) | 23.2°F (2016) | 1.89 in (2008) |
| December 11 | 75.9°F (2007) | 25.2°F (2013) | 0.87 in (2008) |
| December 12 | 77.0°F (2007) | 25.2°F (2023) | 0.46 in (1998) |
| December 13 | 72.0°F (2015) | 17.2°F (2010) | 1.73 in (2019) |
| December 14 | 72.0°F (2001) | 15.3°F (2010) | 0.87 in (2022) |
| December 15 | 73.0°F (2015) | 17.1°F (2025) | 1.27 in (2005) |
| December 16 | 73.9°F (2006) | 19.9°F (2004) | 0.76 in (2000) |
| December 17 | 72.0°F (2008) | 21.0°F (2000) | 1.20 in (2015) |
| December 18 | 73.9°F (2006) | 19.0°F (2000) | 2.04 in (2009) |
| December 19 | 71.1°F (2006) | 19.0°F (2000) | 0.69 in (2002) |
| December 20 | 69.1°F (2008) | 12.9°F (2000) | 1.18 in (2017) |
| December 21 | 72.0°F (1998) | 21.0°F (2003) | 0.96 in (2011) |
| December 22 | 69.1°F (2013) | 18.1°F (2008) | 2.74 in (2013) |
| December 23 | 66.9°F (2017) | 13.1°F (2022) | 1.20 in (2015) |
| December 24 | 77.0°F (2025) | 7.2°F (2022) | 2.60 in (2015) |
| December 25 | 75.9°F (2015) | 17.2°F (2022) | 1.75 in (2023) |
| December 26 | 77.0°F (2015) | 17.2°F (2022) | 0.38 in (2023) |
| December 27 | 78.1°F (2025) | 23.2°F (2020) | 1.32 in (2011) |
| December 28 | 73.0°F (2025) | 22.1°F (2010) | 3.12 in (2018) |
| December 29 | 73.0°F (2021) | 23.0°F (2000) | 1.01 in (2016) |
| December 30 | 70.0°F (2021) | 18.0°F (2000) | 3.00 in (2021) |
| December 31 | 71.1°F (2024) | 19.0°F (2000) | 1.40 in (2006) |