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Sun Valley Winter Weather

What a typical winter is like at Sun Valley: how often it snows (or rains), how cold it gets at the base, mid-mountain and summit, and how much sun to expect, week by week, from 40 years of weather data.

Winter Weather

How often Sun Valley gets measurable precipitation (rain vs. snow), and typical high/low temperatures, December 1–April 15, based on 40 years of real ERA5 reanalysis data.

23% of days get measurable precipitation, season average

Precipitation calibrated against real observations from the Chocolate Gulch SNOTEL station (×1.00 correction). See full station data

Dec 25%
Jan 21%
Feb 22%
Mar 25%
Apr 1-15 22%
Elevation:

Precipitation frequency by week (rain vs. snow)

Average high/low temperature by week

Winter Sun & Clouds

How much of Sun Valley's theoretically possible winter sunshine it actually gets, December–March, based on 40 years of real ERA5 satellite/reanalysis solar radiation data compared against a clear-sky model.

79% of possible sunshine, Dec–Mar average
Dec 77%
Jan 79%
Feb 80%
Mar 81%

Sun Valley and El Niño → Sun Valley climate change profile → Back to Sun Valley →