Climate almanac
Decatur
Georgia, United States · 33.77°, -84.30°
What is the weather like in Decatur in January?
In January, Decatur is typically 54°F (12°C) during the day and 37°F (3°C) at night. The month brings about 4.9 in (125 mm) of precipitation in total. Snowfall averages about 0.8 in (21 mm) over the month.
- Average high54°F (12°C)
- Average low37°F (3°C)
- Precipitation4.9 in (125 mm)
- Clear or mostly clear days12
- Snowfall0.8 in (21 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)