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

In December, Glacier National Park averages -3°C high / -9°C low with about 167 mm of rain; Grand Teton National Park averages -3°C high / -14°C low with about 81 mm.

Glacier National Park vs Grand Teton National Park in December

Grand Teton National Park is the better pick in December — 42 vs 35 on SeasonMap's comfort score. Grand Teton National Park is freezing, rainy, clean air, while Glacier National Park is freezing, soaked, clean air.

Glacier National Park vs Grand Teton National Park — December climate, side by side

	🇺🇸 Glacier National Park	🇺🇸 Grand Teton National Park
Comfort score	35/100 (F)	42/100 (F)
Feels-like high	-8°C	-7°C
Avg high / low	-3° / -9°	-3° / -14°
Rainfall	167 mm	81 mm
Rainy days	19	14
Humidity	87%	82%
Air quality (AQI)	37	40

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

Month by month

Glacier National Park 🇺🇸 United Statesfreezing, soaked, clean air · best July35
Grand Teton National Park 🇺🇸 United Statesfreezing, rainy, clean air · best June42

Glacier National Park vs Grand Teton National Park in December — FAQ

Is December better in Glacier National Park or Grand Teton National Park?: Grand Teton National Park is the better pick in December — 42 vs 35 on SeasonMap's comfort score. Grand Teton National Park is freezing, rainy, clean air, while Glacier National Park is freezing, soaked, clean air.
What is the weather like in Glacier National Park vs Grand Teton National Park in December?: In December, Glacier National Park averages -3°C high / -9°C low with about 167 mm of rain; Grand Teton National Park averages -3°C high / -14°C low with about 81 mm.