Mount St. Helens (2549m) — December
Monthly conditions and weather data
Weather Quality
4
Temperature
-2–8°C
Precipitation
125 mm
Crowd Level
3
Snow Likelihood
2/5
Daylight Hours
8.5h
Avg Temperature
3°C
Summary
December on Mount St. Helens: cool conditions (-2C to 8C), wet (125mm).