Big Sky vs Sun Valley — Snowfall Comparison
Side-by-side snowfall comparison based on 10 years of historical data (2015–2025). See which resort gets more snow, the best months for powder, and how they compare on elevation and location.
Big Sky
Montana, USA
- Elevation
- 3,403m / 11,165ft
- Annual Snowfall
- 425cm
- Best Month
- April
- Powder Probability
- 50%
- Season Snowfall
- 292cm
Sun Valley
Idaho, USA
- Elevation
- 2,789m / 9,151ft
- Annual Snowfall
- 246cm
- Best Month
- February
- Powder Probability
- 27%
- Season Snowfall
- 220cm
Monthly Snowfall Comparison
| Month | Big Sky (cm) | Sun Valley (cm) |
|---|---|---|
| November | 42.6 | 24.5 |
| December | 41.7 | 44 |
| January | 37.3 | 40.5 |
| February | 51.4 | 48.4 |
| March | 52.1 | 43.2 |
| April | 66.4 | 19 |
Which Resort Gets More Snow?
Based on 10 years of data, Big Sky receives more annual snowfall (425cm) compared to Sun Valley (246cm) — a difference of 179cm per year. The best month for powder at Big Sky is April (50% probability), while Sun Valley's best is February (27% probability).
Snow History: 10 Winters of Data
This comparison draws on 10 consecutive winters of snowfall records (2015–2025) for each resort. Over that span, Big Sky's snowiest month has been April, averaging 66.4cm but ranging from a lean 24cm in the driest winter to 108cm in the deepest — a swing that shows how much any single season can vary. At Sun Valley, the snowiest month is February, averaging 48.4cm and spanning 7cm to 140cm across the record. Comparing these historical ranges, rather than a single season, is the most reliable way to judge which resort delivers more dependable snow for the dates you want to ski.