WeatherArchive / Climate averages / Atlanta
Atlanta climate: average weather by month
Atlanta averages 62°F (17°C) over the year. July is warmest, with highs around 87°F (31°C); January is coldest, with lows near 35°F (2°C). About 49 inches (1245 mm) of precipitation falls on roughly 128 days a year, from 30 years of ERA5 data (1996–2025).
| Month | Avg high | Avg low | Precip. | Days ≥1 mm | Sunshine / day |
|---|---|---|---|---|---|
| January | 10.9°C | 1.5°C | 109.3 mm | 10.1 | 6.8 h |
| February | 13.5°C | 3.5°C | 115.7 mm | 10.1 | 7.1 h |
| March | 17.4°C | 6.7°C | 116.2 mm | 10.2 | 8.4 h |
| April | 21.8°C | 10.6°C | 99.4 mm | 9.7 | 10.1 h |
| May | 26.2°C | 15.4°C | 92.7 mm | 10.4 | 10.9 h |
| June | 29.6°C | 19.7°C | 100.9 mm | 14.1 | 11.3 h |
| July | 30.8°C | 21.6°C | 128.5 mm | 16.1 | 11.4 h |
| August | 30.4°C | 21.2°C | 107.7 mm | 13.7 | 11.0 h |
| September | 27.5°C | 18.3°C | 102.3 mm | 8.9 | 9.6 h |
| October | 22.4°C | 12.4°C | 70.8 mm | 6.7 | 8.7 h |
| November | 16.8°C | 6.8°C | 89.7 mm | 8.0 | 7.5 h |
| December | 12.4°C | 3.4°C | 111.9 mm | 10.2 | 6.2 h |
Record high 1996–2025: 39.9°C on 2012-06-30. Record low: -13.6°C on 2022-12-24.
Source: Open-Meteo Historical Weather API (CC BY 4.0). Values are ERA5 reanalysis model data on a ~9–25 km grid, not readings from a weather station, so a single town’s thermometer can differ by a few degrees and local showers can be missed. Grid cell 33.78, -84.40 at 327 m. For snowfall, humidity and a best-time-to-visit score, open Atlanta in the climate tool.