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Climate · Aspen

Aspen in December

Cold and damp, as the days hold steady.

Typical weather, averaged over 30 years

December in Aspen is cold: highs near 35°F, lows near 7°F. Rain or snow falls on about three days a week, more often as the month goes on, and daylight holds at about 9 hours 27 minutes.December in Aspen is cold: highs near 2°C, lows near -14°C. Rain or snow falls on about three days a week, more often as the month goes on, and daylight holds at about 9 hours 27 minutes.

High
35°F2°Caverage
Low
7°F-14°Caverage
Wet days
3a week · 39% of days
Daylight
9h 27mon average

Is December a good time to visit Aspen?

December sits outside Aspen's best months, which run from June to September. Expect cold days and rain or snow on about three days a week.

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How December sits in the year

week by week

Temperature

Highs near 35°F in December, against 34°F to 80°F through the year.Highs near 2°C in December, against 1°C to 27°C through the year.

Chance of a wet day

39% of days in December, against 28% to 51% through the year.

Cloud cover

45% cover in December, against 28% to 50% through the year.

Daylight

9h 27m in December, against 9h 27m to 14h 53m through the year.

Week by week, lightly smoothed, with December shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. November46°8°low 14°low -10°2 wet days a weekRain on about two days a week.
  2. December35°2°low 7°low -14°3 wet days a weekRain on about three days a week.
  3. January34°1°low 9°low -13°3 wet days a weekRain on about three days a week.

Where Aspen sits, in December

America/Denver
this place
typical high in December 40°F4°C95°F35°C
Sunrise, mid-December
7:19 AMsets 4:45 PM
Above the sea
2,410 mhigh country
Latitude
39.2°Nnorthern hemisphere
Nearest of ours
Crested Butte38 km south

The land around Aspen, shaded by its typical high in December, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in United States in December

high · low · wet days
See December on the planning mapThe whole year in Aspen

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Aspen. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (2,410 m) against the climate model's (2,933 m).Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (2,410 m) against the climate model's (2,933 m). Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.