Climate almanac
Great Falls
Montana, United States · 47.50°, -111.30°
What is the weather like in Great Falls in January?
In January, Great Falls is typically 34°F (1°C) during the day and 20°F (-7°C) at night. The month brings about 0.9 in (23 mm) of precipitation in total. Snowfall averages about 5.5 in (139 mm) over the month.
- Average high34°F (1°C)
- Average low20°F (-7°C)
- Precipitation0.9 in (23 mm)
- Clear or mostly clear days7
- Snowfall5.5 in (139 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)