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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.

Mammoth Mountain, California

SeasonOpeningClosing
2025-2026May 1, 2025Jan 27, 2026
2024-2025May 1, 2024Apr 30, 2025
2023-2024May 1, 2023Apr 30, 2024
2022-2023May 2, 2022Apr 30, 2023
2021-2022May 3, 2021Apr 30, 2022
2020-2021Nov 13, 2020Apr 30, 2021
2019-2020May 1, 2019Mar 14, 2020
2018-2019May 1, 2018Apr 30, 2019
2017-2018May 2, 2017Apr 30, 2018
2016-2017May 2, 2016Apr 30, 2017
2015-2016Jan 1, 2016Apr 30, 2016
Lobby of Mammoth Mountain Inn
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Lobby of Juniper Springs Resort
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