Opening and Closing DatesMammoth MountainOpen
The official opening and closing dates for Mammoth Mountain, California for current and past seasons. These dates are subject to change at Mammoth Mountain's discretion based on weather and snowfall. Estimated dates are based on historical averages or advice from the resort.
Mammoth Mountain, California
| Season | Opening | Closing |
|---|---|---|
| 23/24 | Nov 10 2023 | Jun 28 2025 (estimated) |
| 22/23 | Nov 05 2022 | Aug 06 2023 |
| 21/22 | Oct 29 2021 | Jun 05 2022 |
| 20/21 | Nov 13 2020 | May 31 2021 |
| 19/20 | Nov 09 2019 | Mar 14 2020 * |
