Climate almanac
Boise
Idaho, United States · 43.61°, -116.20°
What is the weather like in Boise in December?
In December, Boise is typically 41°F (5°C) during the day and 29°F (-2°C) at night. The month brings about 2.1 in (54 mm) of precipitation in total. Snowfall averages about 5.1 in (131 mm) over the month.
- Average high41°F (5°C)
- Average low29°F (-2°C)
- Precipitation2.1 in (54 mm)
- Clear or mostly clear days8
- Snowfall5.1 in (131 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)