Climate almanac
Spearfish
South Dakota, United States · 44.49°, -103.86°
What is the weather like in Spearfish in January?
In January, Spearfish is typically 36°F (2°C) during the day and 19°F (-7°C) at night. The month brings about 0.9 in (23 mm) of precipitation in total. Snowfall averages about 5.9 in (150 mm) over the month.
- Average high36°F (2°C)
- Average low19°F (-7°C)
- Precipitation0.9 in (23 mm)
- Clear or mostly clear days10
- Snowfall5.9 in (150 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)