A view from Mammoth Mountain's Main Lodge at the end of May. The resort is shutting down after a season that stretched 275 days after record-breaking snowfall over the winter.

Usually, Mammoth Mountain receives an average of about 33 feet of snow — enough to fuel a season lasting from November through June. This winter shattered that norm.

In the first significant storm of the season, Mammoth Mountain saw nearly 50 inches of snow Nov. 23-26, according to the National Weather Service.

Thanks to historic snowfall during the 2022–23 ski season, California’s Mammoth Mountain ski resort just extended the 2023–24 season by one week. The new closing day is August 6.

Mammoth Mountain set its closing date, but summer adventures are abloom The last day to get your spring-style schussing is on fast approach. By Alysia Gray Painter • Published June 3, 2025 ...

Mammoth Mountain shut down snow operations on Sunday, Aug. 6, ending an extremely long season for the popular California mountain resort. The summer snow season wrapped up on Aug. 6, ...