Climate almanac
Joint Base Lewis McChord
Washington, United States · 47.11°, -122.58°
What is the weather like in Joint Base Lewis McChord in December?
In December, Joint Base Lewis McChord is typically 45°F (7°C) during the day and 38°F (3°C) at night. The month brings about 8.5 in (216 mm) of precipitation in total. Snowfall averages about 3.0 in (77 mm) over the month.
- Average high45°F (7°C)
- Average low38°F (3°C)
- Precipitation8.5 in (216 mm)
- Clear or mostly clear days2
- Snowfall3.0 in (77 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)