Aspen (CO) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Aspen.
Climate overview of Aspen
The climate in Aspen, Colorado, United States of America, is marked by large temperature swings across the seasons, ranging from 24°C (75°F) in July to 0°C (32°F) in December.
The city receives around 653 mm (26 in) of rain/snowfall per year. It experiences warm summers and very cold winters. December is the wettest month and June the driest.
Aspen Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Aspen - and find the best time to visit.
Monthly Temperature in Aspen
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
Rainfall in Aspen
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
Humidity in Aspen by Month
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
Best Time to Visit Aspen
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July and August
- Warmest weather: July
- Fewest rainy days: June
- Seasonal pattern: Warm summers and very cold winters
- Coldest conditions: December, with freezing nights around -13°C (9°F).
Frequently asked questions about the climate in Aspen
What is the best time to visit Aspen?
June, July and August typically offer the most optimal weather in Aspen. In contrast, January, February, March, April, November and December tend to have less optimal conditions. Aspen has warm summers and very cold winters.
What temperatures can I expect in Aspen?
Daytime highs range from 0°C (32°F) in December to 24°C (75°F) in July. Nighttime lows range from -13°C (9°F) to 9°C (48°F). Temperatures vary considerably through the year.
How much rain does Aspen get?
Annual rainfall is around 653 mm (26 in). December is the wettest month with 71 mm (2.8 in), while June is the driest with 19 mm (0.7 in). In the coldest months, precipitation may fall as snow.
Aspen 3-Day Forecast
Aspen (CO) 3-Day Forecast
Aspen on the map
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