Aspen weather in December
December in Aspen: freezing, a little rain, with clean air — a great time to visit.
#6 of 12 months in Aspen · #166 of 604 destinations to visit in December · comfort 79/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Aspen climate normals — December
| Daytime high | 1°C / 33°F | 🥶 freezing |
|---|---|---|
| Nighttime low | -12°C / 11°F | |
| Feels like (high) | -3°C / 27°F | |
| Rainfall | 74 mm / 2.9 in | 🌦 some rain |
| Rainy days | 11 days | |
| Humidity | 75% | 💦 very humid |
| Dew point | -10°C / 13°F | |
| Sunshine | 7.2 h/day | |
| Daylight | 9.5 h | |
| Wind | 11 km/h / 7 mph | |
| Snowfall | 74.7 cm / 29.4 in | |
| Air quality (US AQI) | 46 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Aspen?
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Aspen in December — FAQ
- Is December a good time to visit Aspen?
- December in Aspen: freezing, a little rain, with clean air — a great time to visit. It ranks #6 of 12 months for Aspen on SeasonMap's comfort score (79/100).
- What is the weather like in Aspen in December?
- In December, Aspen averages a daily high of 0.6°C and a low of -11.9°C, with about 74.4 mm of rain over roughly 11.4 rainy days.
- What is the air quality in Aspen in December?
- Aspen has a mean US Air Quality Index of about 46 in December.
- Does it snow in Aspen in December?
- Aspen sees roughly 74.7 cm of snowfall in December.