What is the weather like in Glacier National Park vs Yellowstone National Park in December?

In December, Glacier National Park averages -3°C high / -9°C low with about 167 mm of rain; Yellowstone National Park averages -4°C high / -15°C low with about 60 mm.

Glacier National Park vs Yellowstone National Park in December

Yellowstone National Park is the better pick in December — 42 vs 35 on SeasonMap's comfort score. Yellowstone National Park is freezing, a little rain, clean air, while Glacier National Park is freezing, soaked, clean air.

Glacier National Park vs Yellowstone National Park — December climate, side by side

	🇺🇸 Glacier National Park	🇺🇸 Yellowstone National Park
Comfort score	35/100 (F)	42/100 (F)
Feels-like high	-8°C	-9°C
Avg high / low	-3° / -9°	-4° / -15°
Rainfall	167 mm	60 mm
Rainy days	19	12
Humidity	87%	83%
Air quality (AQI)	37	42

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

Glacier National Park 🇺🇸 United Statesfreezing, soaked, clean air · best July35
Yellowstone National Park 🇺🇸 United Statesfreezing, a little rain, clean air · best August42

Glacier National Park vs Yellowstone National Park in December — FAQ

Is December better in Glacier National Park or Yellowstone National Park?: Yellowstone National Park is the better pick in December — 42 vs 35 on SeasonMap's comfort score. Yellowstone National Park is freezing, a little rain, clean air, while Glacier National Park is freezing, soaked, clean air.
What is the weather like in Glacier National Park vs Yellowstone National Park in December?: In December, Glacier National Park averages -3°C high / -9°C low with about 167 mm of rain; Yellowstone National Park averages -4°C high / -15°C low with about 60 mm.