Climate almanac
Decatur
Alabama, United States · 34.61°, -86.98°
What is the weather like in Decatur in December?
In December, Decatur is typically 56°F (14°C) during the day and 40°F (5°C) at night. The month brings about 5.1 in (130 mm) of precipitation in total. Snowfall averages about 0.2 in (6 mm) over the month.
- Average high56°F (14°C)
- Average low40°F (5°C)
- Precipitation5.1 in (130 mm)
- Clear or mostly clear days9
- Snowfall0.2 in (6 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)