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White Pass Winter Weather

What a typical winter is like at White Pass: 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 White Pass gets measurable precipitation (rain vs. snow), and typical high/low temperatures, December 1–April 15, based on 40 years of real ERA5 reanalysis data.

47% of days get measurable precipitation, season average

Precipitation calibrated against real observations from the White Pass E.S. SNOTEL station (×0.84 correction). See full station data

Dec 50%
Jan 50%
Feb 45%
Mar 46%
Apr 1-15 40%
Elevation:

Precipitation frequency by week (rain vs. snow)

Average high/low temperature by week

Winter Sun & Clouds

How much of White Pass'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.

64% of possible sunshine, Dec–Mar average
Dec 60%
Jan 61%
Feb 66%
Mar 69%

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