2025-12-20T04:00:00-08:00
* WHAT...Southwest winds 25 to 35 mph with gusts up to 55 mph. Wind prone areas along US-395 may see localized gusts up to 75 mph. Ridge top gusts 80 to 100 mph. * WHERE...Mono County. * WHEN...From 7 AM this morning to 4 AM PST Saturday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.
Mammoth Mountain Ski Report
Rate this placeNearby: June Mountain
Last Updated: December 19, 2025
Bluebird skies greet skiers and riders this December 19 at Mammoth Mountain, where the resort has officially kicked off its 2024–25 season. Mammoth Mountain is a top ski resort in the United States located in California's Sierra Nevada Mountains.
Snowfall Totals & Snow Forecast
Hourly Snowfall
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Wind
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Humidity
Summary
While early-season conditions are still ramping up with a modest 7-inch snowpack—about 56% below average—excitement is building fast. Temperatures hovered around a mild 36.9°F overnight, keeping snow firm in the morning with softening expected by noon. Although only 0.15 inches of snow is forecast in the next 24 hours, a massive winter storm system looms ahead, promising a game-changing 22+ inches by the weekend and up to a staggering 55 inches in the next five days.
Despite a slow snow start, terrain is open, and crews are hard at work preparing more runs. Visitors should remain cautious: a recent inbounds avalanche and the tragic loss of a ski patroller earlier this month serve as sobering reminders of mountain risks. In nearby news, the 3,000-acre Pack Fire is now over 50% contained and poses no immediate threat to skiers, though smoky conditions may linger intermittently. With high energy on the mountain and a major snowfall event on the horizon, this weekend could mark the real start of winter in Mammoth—just in time for the holidays.
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, mostly sunny, with a high near 42. very windy, with a southwest wind around 55 mph, with gusts as high as 85 mph.
How much new snowfall is forecasted for Mammoth Mountain this week?
Mammoth Mountain is expected to receive up to 55.54" 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 snowfall expected in the central and southern Sierra. Leavitt Lake and Sonora Pass are forecast to receive up to 127 cm and 119 cm of snow respectively over the next five days, positioning nearby resorts like Bear Valley and Dodge Ridge for significant powder days. Mammoth Mountain, ... Read more
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