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

In December, Grand Teton National Park averages -3°C high / -14°C low with about 81 mm of rain; Rocky Mountain National Park averages -2°C high / -9°C low with about 75 mm.

Grand Teton National Park vs Rocky Mountain National Park in December

Rocky Mountain National Park is the better pick in December — 47 vs 42 on SeasonMap's comfort score. Rocky Mountain National Park is freezing, a little rain, clean air, while Grand Teton National Park is freezing, rainy, clean air.

Grand Teton National Park vs Rocky Mountain National Park — December climate, side by side

	🇺🇸 Grand Teton National Park	🇺🇸 Rocky Mountain National Park
Comfort score	42/100 (F)	47/100 (F)
Feels-like high	-7°C	-7°C
Avg high / low	-3° / -14°	-2° / -9°
Rainfall	81 mm	75 mm
Rainy days	14	13
Humidity	82%	68%
Air quality (AQI)	40	44

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

Month by month

Grand Teton National Park 🇺🇸 United Statesfreezing, rainy, clean air · best June42
Rocky Mountain National Park 🇺🇸 United Statesfreezing, a little rain, clean air · best August47

Grand Teton National Park vs Rocky Mountain National Park in December — FAQ

Is December better in Grand Teton National Park or Rocky Mountain National Park?: Rocky Mountain National Park is the better pick in December — 47 vs 42 on SeasonMap's comfort score. Rocky Mountain National Park is freezing, a little rain, clean air, while Grand Teton National Park is freezing, rainy, clean air.
What is the weather like in Grand Teton National Park vs Rocky Mountain National Park in December?: In December, Grand Teton National Park averages -3°C high / -14°C low with about 81 mm of rain; Rocky Mountain National Park averages -2°C high / -9°C low with about 75 mm.