Climate almanac
Sumter
South Carolina, United States · 33.92°, -80.34°
What is the weather like in Sumter in January?
In January, Sumter is typically 58°F (14°C) during the day and 39°F (4°C) at night. The month brings about 3.6 in (91 mm) of precipitation in total. Snowfall averages about 0.6 in (14 mm) over the month.
- Average high58°F (14°C)
- Average low39°F (4°C)
- Precipitation3.6 in (91 mm)
- Clear or mostly clear days12
- Snowfall0.6 in (14 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)