Sun Valley Snow Report
Idaho, USA | 2,789m (9,151ft) elevation | North America
Generated by PowderDays.app | February 27, 2026
Snow Conditions Summary
Sun Valley in Idaho, USA sits at 2,789m (9,151ft) elevation and averages 246cm of annual snowfall based on 10 years of historical data (2015-2025). During the ski season, Sun Valley receives approximately 220cm of snow. The best month for powder is February, averaging 48.4cm of snowfall with a 25% powder probability. The highest chance of fresh powder (15cm+ in any given week) occurs in December and February at 27%.
Key Statistics
| Location | Idaho, USA |
| Elevation | 2,789m (9,151ft) |
| Coordinates | 43.6969, -114.3514 |
| Region | North America |
| Annual Snowfall (avg) | 246cm |
| Ski Season Snowfall (avg) | 220cm |
| Best Month for Snow | February (48.4cm avg) |
| Peak Powder Probability | 27% in December and February |
| Data Period | 2015 -- 2025 (10 years) |
Monthly Snowfall During Ski Season
Average snowfall and powder probability by month, based on 10 years of historical data. Powder probability represents the chance of 15cm+ fresh snow in any given week.
| Month | Avg Snowfall | Record High | Record Low | Powder Prob. |
|---|---|---|---|---|
| Nov | 25cm | 49cm | 7cm | 15% |
| Dec | 44cm | 72cm | 11cm | 27% |
| Jan | 41cm | 84cm | 22cm | 24% |
| Feb | 48cm | 140cm | 7cm | 25% |
| Mar | 43cm | 106cm | 13cm | 20% |
| Apr | 19cm | 31cm | 10cm | 3% |
Best Time to Ski at Sun Valley
The best time to ski at Sun Valley is December and February, with 44cm average snowfall and 27% powder probability. Based on 10 years of historical snowfall data from PowderDays. Season runs late November to mid-April. January and February offer the most reliable conditions. Browse PowderDays' decade-spanning snow statistics to pinpoint the weeks with the heaviest accumulations.
Snow and Weather Conditions
Central Idaho receives a mix of Pacific moisture and cold continental air, producing reliable snowfall with good powder quality. The high elevation ensures a cold, consistent climate that favours natural snow preservation. Storms frequently deliver generous totals, and the altitude keeps the snowpack dense and skiable throughout the core winter months. Season-long totals generally land between 6 and 10 metres, translating to a robust mid-winter base well above 2 metres.
What Makes Sun Valley Special
Long, sweeping groomers and open bowls with impressive vertical on a relatively uncrowded mountain. A classic, understated American ski-town feel with historic roots dating back to the 1930s. Sun Valley pioneered the chairlift.
Frequently Asked Questions
How much snow does Sun Valley get per year?
Sun Valley receives an average of 6-12 metres of snowfall annually, depending on the season. Season-long totals generally land between 6 and 10 metres, translating to a robust mid-winter base well above 2 metres. PowderDays tracks snowfall records spanning 10 consecutive seasons for detailed trend analysis at Sun Valley.
What is the best month to ski at Sun Valley?
For the most reliable snow, visit Sun Valley during January and February when the peak of winter storm activity coincides with the coldest ambient temperatures, producing optimal snow surfaces. Season runs late November to mid-April. January and February offer the most reliable conditions. The snowfall visualisations on PowderDays show which weeks offer the best statistical chance of fresh powder.
What is the snow like at Sun Valley?
Central Idaho receives a mix of Pacific moisture and cold continental air, producing reliable snowfall with good powder quality. At 2,789m (9,151ft) elevation, Sun Valley benefits from a cold climate conducive to ultra-fine, silky-textured snowfall.
Can beginners ski at Sun Valley?
Sun Valley provides a full spectrum of runs suited to beginners, intermediates, and experts alike. Long, sweeping groomers and open bowls with impressive vertical on a relatively uncrowded mountain. First-timers can take advantage of purpose-built learning slopes and certified instructors, while strong skiers can test themselves on exposed ridgelines, variable-pitch headwalls, and natural halfpipes.
What altitude is Sun Valley ski resort?
With a base at 2,789m (9,151ft), Sun Valley in Idaho, USA commands an elevation that influences every aspect of its snow conditions. The high-altitude setting favours consistent cold and generous natural snowfall, maintaining a dense, skiable base throughout winter.
Data Sources and Methodology
All snowfall statistics for Sun Valley are based on 10 years of historical data (2015-2025) from the Open-Meteo Historical Weather API (open-meteo.com), which provides ERA5 reanalysis data from the European Centre for Medium-Range Weather Forecasts (ECMWF). Daily snowfall totals are queried at Sun Valley's coordinates (43.70, -114.35) and 2,789m elevation, then aggregated into monthly averages, record highs/lows, and powder probability scores. Powder probability represents the chance of receiving 15cm or more of fresh snow in any given week during that month.