Is Sun Valley snowsure?
The snowiest week in Sun Valley is week 2 of December. There are typically 2.9 snowy days during this week with 19 cm of snowfall. Check out the Sun Valley Snow History graphs below. Select any week of the year to see the typical Ski Conditions, Snowfall Amount and Temperature based on nowcast weather data over the last 11 years.Average monthly snow in Sun Valley
| Month | Snow amount (week) | Snow days (week) |
|---|---|---|
| December | 15 cm | 2.9 days |
| January | 13 cm | 2.6 days |
| February | 16 cm | 3.3 days |
| March | 14 cm | 3.2 days |
| April | 7 cm | 2.7 days |
Average Snow and Weather Conditions in Sun Valley during May (week 1):
The average snowfall forecast during week 1 of May for Sun Valley is 4 cm. There are typically 1.4 snowy days during this week.Sun Valley expected weather and snow conditions during the first week of May at the middle elevation of the ski area at 2262m, based on historical averages over the last 16 years: At this time of year the typical freezing level (2870m) is a long way above the middle elevation of Sun Valley. On average, expect one or two days with snowfall per week in Sun Valley at the start of May with the same probbaility of rain falling rather than snow. Forecast model average snowfall for the week is 4cm. Temperatures averaging above freezing both day and night in Sun Valley during week one of May with average maximum temperature 5.1°C and minimum temperature 3.3°C at the middle elevation. Expect the sun to come out on two or three days per week. Generally light winds (average 13km/h).
Snow History: Compare Resorts
Sun Valley Snow Depths
Recorded snow depths for the upper and lower slopes in Sun Valley and (2007 – 2024).
The most cherished days on the mountain in Sun Valley are Bluebird Powder days when it is mostly sunny with light winds following very recent snowfall. Poorer weather conditions may prevail on Powder days when the visibility can be limited but the snow is significantly deep and fresh for keen powder-hounds. Bluebird days can suit many skiers that aren’t necessarily hunting powder but want to enjoy the snowy mountains in sunnier conditions and light winds.
The snowiest weeks of the year in Sun Valley are shown but also bear in mind the number of days that it typically snows each week if you want regular fresh tracks. The risk of a rainy day is shown but be sure to switch between elevations to see if lower lifts are rain affected or higher lifts remain snowy despite any rain further down the mountain.
The highest and lowest temperatures averaged for each week of the year in Sun Valley are shown. Check out the risk of freze-thaw conditions prevailing at different elevations for any given week. We also show the extremes of temperature (blue/red dots) that reveal the chance of unusually warm or cold conditions.
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