Overview
Aspen is in United States. The figures below are long-term monthly averages (2014-2023), not a forecast.
- Warmest month: July, with daytime highs around 26°C.
- Coolest month: January, with daytime highs around -0°C.
- Driest month: June, about 29 mm of rain.
- Wettest month: March, about 72 mm of rain.
- Sunniest month: June, about 13.6 hr of sunshine per day.
Best months by holiday type
- Skiing (cold with snowfall)
- January, February, March, November, and December
Judged by simple climate rules applied to the monthly averages, not by local knowledge.
Climate by month
| Month | Day high | Night low | Rain (mm) | Rainy days | Sun (h/day) | Humidity | Wind (km/h) |
|---|---|---|---|---|---|---|---|
| January | -0°C | -12°C | 56 mm | 12 | 7.5 | 69% | 5 km/h |
| February | 1°C | -10°C | 65 mm | 13 | 8.5 | 67% | 6 km/h |
| March | 5°C | -7°C | 72 mm | 14 | 9.9 | 65% | 6 km/h |
| April | 9°C | -4°C | 66 mm | 13 | 11.3 | 64% | 7 km/h |
| May | 14°C | -1°C | 64 mm | 12 | 12.6 | 64% | 7 km/h |
| June | 22°C | 4°C | 29 mm | 7 | 13.6 | 53% | 7 km/h |
| July | 26°C | 9°C | 39 mm | 10 | 13.2 | 54% | 6 km/h |
| August | 24°C | 8°C | 40 mm | 9 | 12.5 | 54% | 6 km/h |
| September | 21°C | 5°C | 35 mm | 7 | 11.4 | 52% | 7 km/h |
| October | 13°C | -2°C | 53 mm | 9 | 9.8 | 60% | 6 km/h |
| November | 5°C | -10°C | 55 mm | 10 | 8.5 | 66% | 6 km/h |
| December | 1°C | -13°C | 70 mm | 12 | 7.0 | 69% | 6 km/h |
Similar destinations
Data and sources
- Air climate: Open-Meteo Historical Weather API (ERA5 / ERA5-Land reanalysis), 2014-2023. CC BY 4.0 (Open-Meteo); underlying ERA5 data: Copernicus licence
- Sea temperature: not available for this destination.
- Last updated October 8, 2026.