Aspen (CO) Weather & Climate: Best Time to Visit

In Aspen, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 24°C (75°F) in July to a very cold 0°C (32°F) in December.

Nighttime temperatures range from 9°C (48°F) in July to -13°C (9°F) in December.

Check out our detailed temperature page for more information.

Temperature ranges by month

On average, Aspen receives a reasonable amount of rain/snowfall, with an annual precipitation of 653 mm (26 in). The seasons in Aspen bring significant changes in precipitation. The wettest month, December, receives moderate snowfall, with an average of 71 mm (2.8 in) of precipitation. This snowfall is distributed across 17 snowy days.

In contrast, the driest month, June, experiences much less rainfall, totaling 19 mm (0.7 in) over 6 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Aspen Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

The relative humidity is moderate throughout the year in Aspen.

The city experiences its highest humidity in December, reaching 64%. In June, the humidity drops to its lowest level at 43%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year