Climate almanac
Altamont
Oregon, United States · 42.21°, -121.74°
What is the weather like in Altamont in December?
In December, Altamont is typically 41°F (5°C) during the day and 28°F (-2°C) at night. The month brings about 3.7 in (95 mm) of precipitation in total. Snowfall averages about 14 in (356 mm) over the month.
- Average high41°F (5°C)
- Average low28°F (-2°C)
- Precipitation3.7 in (95 mm)
- Clear or mostly clear days5
- Snowfall14 in (356 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)