Mt. Jefferson saw 108cm of snow across the 2025/26 season, down 20% on last winter. That puts it 30th snowiest of the last 31 winters.
0
powder daysmornings over 15cm, worth setting an alarm for.
7cm
biggest single daythe mountain reset overnight on 26 Jan 2026.
29cm
deepest basemeasured on 27 Jan 2026.
29cm
snowiest monthJanuary 2026 stole the show.
13cm
best weekseven days from 2 Dec 2025.
61%
of a typical winter's snowfall. A leaner year than usual.
Snow reliability
17/100
MarginalTypically about 53 ski days a season, declining by 5 days per decade.
Snowfall by season
The 30th snowiest of the last 31 winters.
Snowfall by month
January was the mid-winter peak, with 27% of the season's snow.
Modelled base-altitude snowfall from ERA5 reanalysis (Copernicus), EM Snow archive. The grid sits near resort base, not the summit, so treat totals as a valley-level estimate.