Climate almanac
Chehalis
Washington, United States · 46.66°, -122.96°
What is the weather like in Chehalis in December?
In December, Chehalis is typically 46°F (8°C) during the day and 37°F (3°C) at night. The month brings about 8.3 in (210 mm) of precipitation in total. Snowfall averages about 2.4 in (61 mm) over the month.
- Average high46°F (8°C)
- Average low37°F (3°C)
- Precipitation8.3 in (210 mm)
- Clear or mostly clear days2
- Snowfall2.4 in (61 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)