Mammoth Mountain saw 470cm of snow across the 2025/26 season, down 9% on last winter, with 3 fewer powder days than last year. That puts it seventh snowiest of the last 15 winters.
11
powder daysmornings over 15cm, worth setting an alarm for.
69cm
biggest single daythe mountain reset overnight on 24 Dec 2025.
149cm
deepest basemeasured on 19 Feb 2026.
133cm
snowiest monthFebruary 2026 stole the show.
120cm
best weekseven days from 20 Dec 2025.
111%
of a typical winter's snowfall. A properly big season.
Snow reliability
74/100
GoodTypically about 134 ski days a season, declining by 6 days per decade.
Snowfall by season
The seventh snowiest of the last 15 winters.
Snowfall by month
February was the mid-winter peak, with 28% of the season's snow.
Modelled base-altitude snowfall from the Open-Meteo ERA5 archive. The grid sits near resort base, not the summit, so treat totals as a valley-level estimate. Source: open-meteo.com.