Bluebird skies and brisk mountain air greeted skiers and snowboarders at Mammoth Mountain today, December 27, 2025, with a chilly overnight low of 18°F preserving the slopes in prime condition. Mammoth Mountain is a top ski resort in the United States located in California's Sierra Nevada Mountains.
Wind
Humidity
The snowpack currently sits at a solid 46 inches—about 86% of the seasonal average—providing ample coverage across much of the resort. While the forecast only calls for a light dusting of 0.04 inches over the next 72 hours, the existing snow is holding well thanks to lower temps and dry weather, making for fast groomers and playful tree runs. The Snow Water Equivalent (SWE) is at 7.1 inches, indicating decent snow moisture content and good skiable quality despite a lack of recent snowfall.
Skiers are reminded to stay alert and cautious following recent avalanche activity. Just days ago, a major inbounds avalanche reportedly swept through part of the mountain, tragically claiming the life of a ski patroller. Patrol teams have since ramped up mitigation efforts, and affected areas remain under close watch. Meanwhile, Mammoth continues to buzz with energy thanks to newly opened terrain and the debut of its state-of-the-art D-Line Chairlift, ensuring quicker access to upper zones. While conditions remain stable, always check for avalanche warnings and terrain updates before heading out.
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.
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.
Recent air temperature fluctuations at Mammoth Mountain impact snow quality and stability, from powder to slush.
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 |
The ski area received -1" of new snowfall since yesterday.
Weather today, sunny, with a high near 24. northwest wind 10 to 15 mph.
California ski resorts are seeing a fresh layer of snow, with the heaviest 24-hour snowfall totals centered in the central Sierra and northern Lake Tahoe areas. Heavenly Mountain Resort and Palisades Tahoe are key beneficiaries, receiving 10" and 7" respectively. Echo Peak (9") and Ward Creek (13") report strong gains, confirming solid conditions in the Lake Tahoe region. Black Springs ... Read more