Climate Overview
The climate in Aspen–Pitkin County Airport is cold. The average annual temperature is 1°C and approximately 682mm of precipitation falls per year. Aspen–Pitkin County Airport receives a notable amount of rainfall throughout the year, including during its driest month. Aspen–Pitkin County Airport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are December, January, November, when temperatures can drop to -14°C. Aspen–Pitkin County Airport experiences heavy snowfall, typically from January through December.
Temperature
Temperatures in Aspen–Pitkin County Airport vary considerably across the year, with a 35°C difference between the coldest and warmest months. July is the warmest month, though highs remain moderate at 21°C with a mean of 13°C. The coldest month is December, when overnight lows fall to -14°C and the daily average is -9°C. On average, daily temperatures fluctuate by about 13°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 8°C shift in average temperatures.
Precipitation
Aspen–Pitkin County Airport is a relatively dry area, receiving approximately 682mm of precipitation annually, which averages out to around 57mm per month. The wettest month is March, averaging 78mm of rainfall. April and December also tend to see above-average precipitation. The driest month is September, with just 33mm. That's 46mm less than March, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Aspen–Pitkin County Airport receives heavy snowfall, accumulating around 337cm annually from January through December. The snowiest month is March, with approximately 55cm. Winter travel should account for significant snow cover.
Wind
Aspen–Pitkin County Airport is mildly breezy, with an average annual wind speed of 13km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 16km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/h gap between the calmest and windiest months.
Seasons
88 days until Summer
It is currently spring in Aspen–Pitkin County Airport, which began on March 20, 2026. Aspen–Pitkin County Airport is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 21°C, while the coldest stretch bottoms out in December near -14°C. Summer is next, beginning on June 21, 2026 — 88 days from now.
Spring
Temperatures range from -8 to 9°C. Precipitation is moderate at around 214mm for the season, averaging 71mm per month. Winds are generally light, averaging 15km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 2 to 21°C. Rainfall is relatively light, with around 142mm over the season and a monthly average of 47mm. Winds are generally light, averaging 13km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from -12 to 17°C. Rainfall is relatively light, with around 139mm over the season and a monthly average of 46mm. Expect around 66cm of snow accumulation during this period. Winds are generally light, averaging 13km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from -14 to -2°C. Precipitation is moderate at around 188mm for the season, averaging 63mm per month. Expect around 139cm of snow accumulation during this period. Winds are generally light, averaging 12km/h. Heavy layering and insulated outerwear are essential — exposed skin should be minimised outdoors.
Monthly Climate Data
The table below shows monthly climate averages for Aspen–Pitkin County Airport based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
