Climate almanac
Idaho Falls
Idaho, United States · 43.47°, -112.03°
What is the weather like in Idaho Falls in December?
In December, Idaho Falls is typically 34°F (1°C) during the day and 21°F (-6°C) at night. The month brings about 1.9 in (49 mm) of precipitation in total. Snowfall averages about 11 in (280 mm) over the month.
- Average high34°F (1°C)
- Average low21°F (-6°C)
- Precipitation1.9 in (49 mm)
- Clear or mostly clear days7
- Snowfall11 in (280 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)