Average daily temperature during the week of 18 August 2025 - 24 August 2025 was 30 °C (86 °F), average minimal (night) temperature was 11 °C (52 °F). These temperatures are above the long-time average for Aspen, being 24 °C (75 °F) for daily temperatures and 5 °C (41 °F) for night temperatures. In the end, Sunday was coldest day of the week. The average temperatures observed during different times of day (based on local time) were as below: 7am 11 °C (52 °F), 10am 21 °C (70 °F), 1pm 28 °C (82 °F), 4pm 28 °C (82 °F), 7pm 25 °C (77 °F), 10pm 18 °C (64 °F).

The week had 5 days without rain, 1 day with light rain and 1 day with moderate rain. Aspen received 3 mm (0.12 in) of precipitation throughout the week, which is below its long-term average of 11 mm (0.43 in). The average cloud coverage during the daytime (from dawn to dusk) was 16 %. The meteorological event(s) that occurred was: haze.

An average wind speed of 3.0 m/s was recorded. Prevailing wind direction(s) were North and South. The air pressure was 1010 hpa - 1031 hpa. The air in Aspen had an average humidity of 35 %.

During the daytime (from dawn to dusk), there were in average: 12 hours clear skies, 1 hour partially overcast skies, 1.5 hours overcast skies and 0.5 hours rainy weather. Average time of sunrise was 06:26, average time of sunset was 19:54.

Weather overview

Aspen (United States of America) in general has a mild continental climate. Temperatures during the day are in the range from 1 °C (34 °F) in January to 25 °C (77 °F) in July. Temperatures during the night go from -17 °C (1 °F) in January to 5 °C (41 °F) in July. The least rainy month in Aspen is June with its 8 days of rain, the rainiest month is August, when it rains 12 days.

January weather

The minimum of the day temperature can be noticed, with its value of 1 °C (34 °F) in Aspen, and the night temperature reaches its minimum too, its value is -17 °C (1 °F). The rainfall amount starts to descent, the value of this measure is 41 mm (1.61 in). The beginning of the rise of the number of sun hours (without clouds) could be noticed, with its value of 7 hours. The minimum of the wind speed is observable in January.

February weather

The number of rainy days starts to rise, its value is 10 days in Aspen. The number of sun hours (without clouds) rises similarly to the previous month, the value of this measure is 8 hours. The day temperature rise's start could be observed, with its value of 2 °C (35 °F).

March weather

The rise of the day temperature can be observed, with its value of 5 °C (41 °F) in Aspen, while the night temperature rise's start could be observed in March. The number of rainy days rises similarly to the previous month, its value is 11 days, while the rainfall amount starts to rise, its value is 44 mm (1.73 in). The number of sun hours (without clouds) rises similarly to the previous month, the value of this measure is 8 hours.

April weather

The day temperature continues to rise, with its value of 9 °C (48 °F) in Aspen, and the rise of the night temperature can be observed too, its value is -7 °C (19 °F). The wind speed is on its maximum in this month. The number of sun hours (without clouds) continues to rise, with its value being 9 hours.

May weather

The day temperature rises similarly to the previous month, its value is 15 °C (59 °F) in Aspen, and the night temperature continues to rise as well, the value of this measure is -2 °C (28 °F). The beginning of the descent of the number of rainy days could be noticed in this month. The rise of the number of sun hours (without clouds) can be observed, with its value of 10 hours.

June weather

The tourist season is about to start in Aspen. The minimum of the number of rainy days is observable, and the rainfall amount reaches its minimum as well, with its value of 31 mm (1.23 in). The day temperature rises similarly to the previous month, with its value of 21 °C (70 °F). The minimum of the humidity is observable, with its value being 41 %. The maximum of the number of sun hours (without clouds) is observable, the value of this measure is 10 hours.

July weather

The maximum of the day temperature is observable, with its value being 25 °C (77 °F) in Aspen, and the maximum of the night temperature is observable too in July. The number of rainy days starts to rise, its value is 12 days, and the rainfall amount starts to rise too, with its value being 45 mm (1.76 in). The tourist season is taking place this month. The beginning of the descent of the number of sun hours (without clouds) could be noticed, with its value of 10 hours.

August weather

The beginning of the descent of the day temperature could be noticed in this month in Aspen. The number of rainy days is on its maximum, with its value being 12 days, and the rainfall amount reaches its maximum too in this month. The number of sun hours (without clouds) descents similarly to the previous month, its value is 9 hours.

September weather

The day temperature descents similarly to the previous month, the value of this measure is 20 °C (69 °F) in Aspen, while the beginning of the descent of the night temperature could be noticed, its value is 1 °C (34 °F). The number of rainy days starts to descent, the value of this measure is 10 days. The number of sun hours (without clouds) descents similarly to the previous month, with its value being 9 hours.

October weather

The number of rainy days continues to descent, its value is 8 days in Aspen, while the rainfall amount starts to descent, the value of this measure is 39 mm (1.53 in). The day temperature descents similarly to the previous month, its value is 14 °C (57 °F), and the night temperature continues to descent as well, its value is -4 °C (25 °F). The number of sun hours (without clouds) descents similarly to the previous month, with its value of 8 hours.

November weather

The number of rainy days starts to rise, the value of this measure is 9 days in Aspen. The day temperature descents similarly to the previous month, with its value being 7 °C (44 °F), and the descent of the night temperature can be observed too, with its value of -9 °C (15 °F). The number of sun hours (without clouds) continues to descent, with its value of 6 hours.

December weather

The day temperature descents similarly to the previous month, its value is 1 °C (34 °F) in Aspen, and the night temperature descents similarly to the previous month as well, its value is -15 °C (4 °F). The minimum of the number of sun hours (without clouds) can be noticed in December. The maximum of the humidity is observable, with its value being 59 %. The day length is on its minimum in this month. The beginning of the rise of the rainfall amount could be noticed, with its value of 46 mm (1.82 in).

How many sunny hours can I expect in Aspen in May?

In Aspen in May, you can expect around 10 hours of sunshine.

What is the temperature in Aspen during the day in June?

The average daily temperature in June in Aspen is 21 °C (70 °F). A comfortable temperature for most people, where it is neither too cold nor too hot, and a large number of activities can be carried out comfortably, including sunbathing by the water. Lighter clothing will be suitable - shorts, skirts, t-shirts, jackets; a light sweater and long trousers may also be useful.

Is there a wet season in July in Aspen?

No, there is no wet season in July in Aspen - you can expect 12 days of rain during the month.

What is the night temperature in August in Aspen?

The average night temperature in August in Aspen is 5 °C (41 °F). The nights will be cool, layers of clothes will be needed for evening and morning walks, the hotel should be equipped with heating.

How many days of precipitation on average can I expect in September in Aspen?

In September in Aspen, we can expect 10 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.2 days of the week, or in general - 32 % days.

Are there good conditions to visit in Aspen in October?

Aspen can be visited in October - the weather will be moderate. A relatively low temperature of 14 °C (57 °F) may be ideal for walking or outdoor activities, but some people may have a different idea of the holiday. The night temperature of -4 °C (25 °F) is not inviting for evening and night activities except for visiting a bar and having beer or two.