Opening and Closing Dates Mammoth Mountain Closed
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.
| Season | Opening | Closing |
|---|---|---|
| Dates | ||
| 24/25 | 11/07/2024 (estimated) | 06/24/2025 (estimated) |
| 23/24 | 11/10/2023 | 05/27/2024 |
| 22/23 | 11/05/2022 | 08/06/2023 |
| 21/22 | 10/29/2021 | 06/05/2022 |
| 20/21 | 11/13/2020 | 05/31/2021 |
| 19/20 | 11/09/2019 | 03/14/2020 * |
| 18/19 | 11/10/2018 | 07/07/2019 |
| 17/18 | 11/09/2017 | 06/17/2018 |
| 16/17 | 11/10/2016 | 08/06/2017 |
| 15/16 | 11/05/2015 | 07/04/2016 |
| 14/15 | 11/13/2014 | 05/25/2015 |
* Closed due to COVID-19
| Season | Opening | Closing |
|---|---|---|
| Snow Depth | ||
| 18/19 | 18″ | N/A |
| 17/18 | 12″ | N/A |
| 16/17 | 36″ | - |
| 15/16 | 30″ | - |
| 14/15 | 40″ | |