Mammoth Mountain 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.
Mammoth Mountain
California, USA
- Elevation
- 3,369m / 11,054ft
- Annual Snowfall
- 695cm
- Best Month
- March
- Powder Probability
- 52%
- Season Snowfall
- 657cm
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 | Mammoth Mountain (cm) | Sun Valley (cm) |
|---|---|---|
| November | 61.8 | 24.5 |
| December | 119.5 | 44 |
| January | 146.5 | 40.5 |
| February | 136.8 | 48.4 |
| March | 147 | 43.2 |
| April | 45.7 | 19 |
Which Resort Gets More Snow?
Based on 10 years of data, Mammoth Mountain receives more annual snowfall (695cm) compared to Sun Valley (246cm) — a difference of 449cm per year. The best month for powder at Mammoth Mountain is March (52% 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, Mammoth Mountain's snowiest month has been March, averaging 147cm but ranging from a lean 25cm in the driest winter to 386cm 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.