What is the weather like in Big Sky vs Sun Valley in January?

In January, Big Sky averages -2°C high / -10°C low with about 42 mm of rain; Sun Valley averages -1°C high / -14°C low with about 51 mm.

Big Sky vs Sun Valley in January

Big Sky is the better pick in January — 90 vs 86 on SeasonMap's comfort score. Big Sky is freezing, a little rain, clean air, while Sun Valley is freezing, a little rain, clean air.

Big Sky vs Sun Valley — January climate, side by side

	Big Sky	Sun Valley
Comfort score	90/100 (S)	86/100 (A)
Feels-like high	-6°C	-5°C
Avg high / low	-2° / -10°	-1° / -14°
Rainfall	42 mm	51 mm
Rainy days	12	9
Humidity	78%	78%
Air quality (AQI)	40	40

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

Big Sky vs Sun Valley in January — FAQ

Is January better in Big Sky or Sun Valley?: Big Sky is the better pick in January — 90 vs 86 on SeasonMap's comfort score. Big Sky is freezing, a little rain, clean air, while Sun Valley is freezing, a little rain, clean air.
What is the weather like in Big Sky vs Sun Valley in January?: In January, Big Sky averages -2°C high / -10°C low with about 42 mm of rain; Sun Valley averages -1°C high / -14°C low with about 51 mm.