Elly Noelle

Mammoth Closing Date 2024. Join us on memorial day for the grand finale of our 23/24 winter season at mammoth mountain. The official opening and closing dates for mammoth mountain, california for current and past seasons.

If weather forecasts hold true, mammoth officials said, that record is likely to fall next week. Mammoth’s longest season took place nearly 30 years ago, when it was open from oct.