2025-12-26T10:00:00-08:00
* WHAT...Heavy snow. For Mono County: Snow accumulations of 4 to 5 feet above 8,000 feet and 1 to 3 feet below 8,000 feet and along US-395. Winds gusting as high as 75 mph along the highest ridges and up to 45 mph along US-395. For Lassen, E. Plumas, and E. Sierra Counties: Snow accumulations of 1 to 3 feet above 6000 feet and west of US-395 and 1 to 6 inches along and east of US-395. Winds gusting as high as 45 mph along the highest ridges and up to 30 mph in lower valleys. * WHERE...Mono County and Lassen-Eastern Plumas-Eastern Sierra Counties. * WHEN...From 10 PM Tuesday to 10 AM PST Friday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Wednesday morning and evening commutes. Strong winds could cause damage to trees and power lines.
Mammoth Mountain Ski Report
Rate this placeNearby: June Mountain
Last Updated: December 22, 2025
Mammoth Mountain is open and ready for action this December 22, 2025 — and while the early-season snowpack sits at just 6 inches (a staggering 66% below average), all signs point to a major shift in conditions. Mammoth Mountain is a top ski resort in the United States located in California's Sierra Nevada Mountains.
Snowfall Totals & Snow Forecast
Hourly Snowfall
°F
°F
mph
Wind
%
Humidity
Summary
A modest 2" of fresh snow is expected today, but the real story is the incoming storm cycle: over 32" are forecasted in the next 72 hours, with a total of 66" projected over the next five days. This could be the long-awaited turning point for the season, transforming thin coverage into powder-laden paradise just in time for the holidays.
Despite the slower start, the atmosphere at Mammoth is buzzing. With the resort officially open, crowds are beginning to arrive in force, and local headlines warn of potential lift lines and logistical challenges this weekend. Skiers should expect rapidly improving conditions and memorable early-season turns — especially as the mountain braces for what could be one of the biggest dumps of the year. Bundle up, plan ahead, and get ready for a snow-filled holiday week on the slopes.
Snowstake Cam
Weather Forecast
Seasonal Comparison
Year over year snow water equivalent
Snow Water Equivalent (SWE) shows how much water the snow holds. This is ideal for year-to-year tracking of real snowfall and water resources. Measurements from Virginia Lakes Ridge.
Regional Snowpack Depth
Snow levels measured from Virginia Lakes Ridge
Snowpack depth measures how much snow has accumulated in the area. This is a key indicator of powder quality, trail coverage, and how epic your runs are going to be this season at Mammoth Mountain.
Historical Air Temperature
Temperature fluctuations at Mammoth Mountain
Recent air temperature fluctuations at Mammoth Mountain impact snow quality and stability, from powder to slush.
About the Area
Mammoth Mountain, located in the Eastern Sierra region of California, is part of the Sierra Nevada mountain range. The resort sits on the slopes of Mammoth Mountain itself, which is a lava dome complex that is part of the Long Valley Caldera. The mountain has an elevation of 11,053 feet and offers over 3,500 acres of skiable terrain.
Other nearby mountain ranges that can be seen from Mammoth Mountain include the White Mountains to the east and the Inyo Mountains to the southeast. These ranges add to the scenic beauty of the area and provide a stunning backdrop for skiing and snowboarding at the resort.
The resort boasts over 3,500 acres of skiable terrain, beautiful scenery, and a lengthy ski season. The best trails are the black diamond runs, such as the Paranoid Flats, which offer challenging terrain for advanced skiers. An interesting fact about Mammoth Mountain is that it is a volcano, and its last eruption was about 57,000 years ago. For beginner skiers, we recommend the gentle slopes of Little Eagle, which offer a great introduction to skiing. For an apres-ski drink, head to the Mammoth Brewing Company, which offers a range of locally brewed beers and delicious bites.
Night Skiing | No |
Lift Count | 29 Lifts |
Hourly Lift Capacity | 50000 per hour |
Base Elevation | 2424 Meters |
Terrain Park | Yes |
Acreage | 3500 Acres |
Established | 1955 |
Run Count | 150 Trails |
Mammoth Mountain FAQ
How much snow did Mammoth Mountain receive over the past day?
The ski area received 0" of new snowfall since yesterday.
What's the weather like at Mammoth Mountain today?
Weather today, a 50 percent chance of snow. partly sunny, with a high near 40. very windy, with a southwest wind 40 to 45 mph, with gusts as high as 70 mph. new snow accumulation of less than one inch possible.
How much new snowfall is forecasted for Mammoth Mountain this week?
Mammoth Mountain is expected to receive up to 66.81" of new snowfall in the next 5 days.
What are ski area conditions in California like right now?
California’s Sierra Nevada is bracing for a major snow event, with the heaviest accumulations projected over the central and northern ranges. The Tahoe region, in particular, is forecast to receive significant snowfall over the next five days. Squaw Valley (Palisades Tahoe), near the CSS Lab and Ward Creek sensors, is expecting up to 134 cm of new snow, making it ... Read more
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