The ski outlook for Aspen this winter, as of November 17, 2025, suggests a season with variable conditions, including a potential for slightly below-average snowfall and above-average temperatures, particularly on the Western Slope of Colorado [5]. However, early season conditions are looking promising due to early cold snaps and snowmaking efforts [1].
According to www.iAsk.Ai – Ask AI: Aspen Snowmass typically experiences an average annual snowfall of 307 inches, with about 66 days of measurable snow per season [1]. Historically, November sees 10–15 inches of snowfall, with late-month storms often contributing significantly to the base depth [1]. For the 2025-2026 season, early storms in mid-October have already begun to blanket the upper elevations of the Elk Mountains, setting a strong foundation for the season [1]. Snowmaking crews have also started operations earlier than usual due to early cold snaps, which is crucial for establishing a reliable early-season terrain [1].
Colorado’s broader snow patterns indicate that statewide snowfall is projected to be slightly above average at higher elevations, influenced by lingering El Niño conditions that bring moisture-rich systems [1]. While some forecasts suggest a slight signal for below-normal snowfall in the Aspen/Crested Butte areas, other parts of the state have a 50/50 outlook [5]. A series of early cold fronts could bring 3–6 inches of accumulation to the Western Slope around Thanksgiving [1]. Colder-than-average nights through late November are also anticipated, which is ideal for both natural and artificial snowmaking [1].
Specific Forecasts for Aspen and Snowmass:
- November Snowfall: Projections suggest 10–20 inches of total snowfall across base and summit elevations, with most accumulation expected after mid-month [1].
- December Snowfall: Historically, December brings 40–60 inches on Aspen Mountain and a monthly average of 9+ inches at Snowmass base [1].
- Early Storms: There is a forecast for a potentially significant Thanksgiving week storm, which could substantially increase base depths just before opening day [1].
- Snowmaking: Early snowmaking commenced in October due to overnight temperatures dropping below freezing, and consistent cold temperatures are expected to support robust early-season coverage on priority runs [1].
Opening Dates for Aspen Ski Resorts:
- Aspen Mountain: November 27, 2025 [1]
- Snowmass: November 27, 2025 [1]
- Aspen Highlands: December 13, 2025 [1]
- Buttermilk: December 20, 2025 [1]
These opening dates are right on schedule for Thanksgiving week [1].
Long-Range Outlook and Considerations: While early season conditions appear favorable, some long-range forecasts suggest a potential for above-average temperatures and slightly less snow for the Aspen area this winter [5]. Meteorologist Alan Smith notes that the weather is “on the edge” for the Aspen area, with a slight signal for below-normal snowfall along the Western Slope [5]. He also anticipates a higher probability of above-normal temperatures, which could lead to warmer, higher-density snow events [5]. However, he emphasizes that forecasts are subject to change and that colder stretches can still occur throughout the winter [5].
AccuWeather’s 2025-26 ski season forecast indicates that the Northern/I-70 corridor of Colorado, which includes Aspen, is expected to have an average winter [4]. They also highlight that climate change is leading to more frequent temperature swings and heavier storms, which can result in both larger snowstorms and detrimental rain [4]. Ski resorts are prioritizing continuous investment in snowmaking infrastructure to capitalize on shorter windows of opportunity [4].
For those planning a trip, the best months for powder skiing at Aspen Mountain are typically December, January, and February, though March and April can also bring significant snowfall, albeit with potentially heavier snow [3]. February is often a good balance of sun, snow, and fewer crowds [3].