Skip to main content
Mammoth Mountain ski resort
Tier C — ENSO-proof

📷 Mammoth Mountain

North America

Mammoth Mountain

Projected to open November 14, 2026

Best months to book: February, January, March · last season + 30-yr record

Projected to open Nov 14 — closed June 7

Weather data is still collected for informational purposes.

Last Snowfall

Oct 12

today

Past 24 Hours

0cm

Past 48 Hours

0cm

Past 10 Days

0cm

7-Day Forecast

1cm

Snow Depth

--

Updated: Oct 12, 9:00 PM•Weather at base: 2,424m
SnowSure™ Score2025-26 season
Projected to open Nov 14

Mammoth Mountain is projected to open November 14, 2026. Here is when it is usually best to book.

Best months to book: February, January, March. Best weeks: 20 Mar–25 Mar, 27 Mar–2 Apr, 10 Apr–16 Apr.NovDec2Jan1Feb3MarAprMayOpens 14 Nov

Best months to book

  1. #1February88cm avg
  2. #2January87cm avg
  3. #3March73cm avg · last season 14.3

Best weeks to book

  1. #1 20 Mar – 25 Mar · last season 14
  2. #2 27 Mar – 2 Apr · last season 18.4
  3. #3 10 Apr – 16 Apr · last season 34.4

Ranked on 25% last season's SnowSure score (2025-26) · 75% 30-year snowfall and base-depth record. The live score returns when the lifts turn.

Current Conditions

Reported Mon, Oct 12, 09:00 PM UTC

Terrain Open

Projected to open Nov 14

Projected to open November 14, 2026 · season ended June 7, 2026

178 runs · 25 lifts — live counts and the SnowSure™ Score return when the lifts turn.

Snow Summary

3,369m

Updated Oct 12, 2026 at 9:00 PM

0cm
24h
1cm
Past 10d
7-Day Forecast
0
Prev10d
0
Now12
0
T13
—
W14
—
T15
—
F16
—
S17
—
S18
Days 8–14 and every model are in Pro.Unlock with Pro
Past
Today
Forecast

Maps

All maps for Mammoth Mountain →

Webcams & Proof of Powder

All webcams & Proof of Powder →
Mammoth Mountain

About Mammoth Mountain

Mammoth Mountain is a premier ski resort located in California’s Eastern Sierra, offering over 3,500 acres of skiable terrain and a summit elevation of 11,053 feet. The resort features a long winter season, diverse runs for all abilities, modern lift infrastructure, and a vibrant base village with dining, lodging, and après-ski options. Signature experiences include expansive alpine views, terrain parks, and access to year-round mountain activities, making it a standout destination for both winter sports enthusiasts and families.

Read the full resort guide →

Frequently asked questions about Mammoth Mountain

Where is Mammoth Mountain?
Mammoth Mountain is a ski resort in the United States.
How high is Mammoth Mountain?
Mammoth Mountain runs from a base elevation of 2,424 m (7,953 ft) to a summit of 3,369 m (11,053 ft), giving a vertical drop of 945 m (3,100 ft).
How big is Mammoth Mountain?
Mammoth Mountain has 3,500 acres (1,416 hectares) of skiable terrain, 178 marked runs and 25 lifts.
Which ski pass covers Mammoth Mountain?
Mammoth Mountain is on the Ikon Pass. Access terms such as blackout dates and day limits vary by pass tier, so check the pass operator for the current season.
When is ski season at Mammoth Mountain?
Mammoth Mountain typically operates from November to June. Exact opening and closing dates shift each year with snowfall — check the resort's current season dates before booking.
How much snow does Mammoth Mountain get in a typical season?
Mammoth Mountain averages 400 inches / 1016 cm of snowfall in a typical season. Any individual season can run well above or below that.
How will El Niño affect Mammoth Mountain in winter 2026-27?
El Niño Signal Rank: #249 of 488 SnowSure resorts · Tier C · strong-event signal -3% vs its own 30-yr average. In the three strongest El Niño winters on record ('97-98, '15-16, '23-24), Mammoth Mountain averaged -3% versus its own 30-year snowfall baseline — effectively ENSO-proof. Mammoth Mountain has held within a few percent of normal across every phase of the Pacific cycle, making it one of the safest bets of a record El Niño winter 2026-27. Analog winters: '97-98 -4%, '15-16 -32%, '23-24 +27%.