Climate almanac
Lewiston
Idaho, United States · 46.42°, -117.02°
What is the weather like in Lewiston in December?
In December, Lewiston is typically 39°F (4°C) during the day and 28°F (-2°C) at night. The month brings about 3.2 in (82 mm) of precipitation in total. Snowfall averages about 9.2 in (234 mm) over the month.
- Average high39°F (4°C)
- Average low28°F (-2°C)
- Precipitation3.2 in (82 mm)
- Clear or mostly clear days3
- Snowfall9.2 in (234 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)