Mountain town in Colorado, United States
Aspen weather by month and the best time to visit
When to go to Aspen
Jan–Mar is peak ski season. Jul–Sep is warm with hiking and festivals; late Sep brings aspen gold color. Apr–May and Nov are mud seasons when lifts and many shops close.
Aspen weather by month
Average daily high, rainfall and conditions.
- Jan-1°48 mm
- Feb-1°45 mm
- Mar4°45 mm
- Apr9°51 mm
- May15°43 mm
- Jun23°21 mm
- Jul27°46 mm
- Aug25°45 mm
- Sep20°46 mm
- Oct12°43 mm
- Nov5°42 mm
- Dec-1°51 mm
Monthly averages
| Month | High | Low | Rain | Humidity | Conditions |
|---|---|---|---|---|---|
| January | -1°C30°F | -12°C10°F | 48 mm | 91% | Freezing |
| February | -1°C31°F | -12°C10°F | 45 mm | 94% | Freezing |
| March | 4°C38°F | -8°C17°F | 45 mm | 89% | Cold |
| April | 9°C48°F | -3°C27°F | 51 mm | 74% | Cold |
| May | 15°C60°F | 2°C36°F | 43 mm | 63% | Cool |
| June | 23°C74°F | 7°C45°F | 21 mm | 50% | Pleasant |
| July | 27°C80°F | 11°C52°F | 46 mm | 56% | Pleasant |
| August | 25°C76°F | 10°C49°F | 45 mm | 58% | Pleasant |
| September | 20°C68°F | 6°C42°F | 46 mm | 56% | Pleasant |
| October | 12°C54°F | 0°C32°F | 43 mm | 63% | Cool |
| November | 5°C41°F | -6°C21°F | 42 mm | 75% | Cold |
| December | -1°C30°F | -12°C10°F | 51 mm | 89% | Freezing |
Best months across United States
| Place | Best months | Warmest month |
|---|---|---|
| New York City | Apr–Jun, Sep–Oct | Jul (26°C) |
| Las Vegas | Mar–May, Oct–Nov | Jul (42°C) |
| Los Angeles | Mar–May, Sep–Nov | Aug (32°C) |
| Orlando | Feb–Apr, Nov | May (31°C) |
| Miami | Nov–Apr | Aug (30°C) |
| San Francisco | Apr–May, Sep–Oct | Sep (24°C) |
| Honolulu | Apr–Jun, Sep–Oct | Sep (28°C) |
| Washington, D.C. | Mar–May, Sep–Oct | Jul (31°C) |
| Chicago | May–Jun, Sep–Oct | Jul (25°C) |
| Boston | May–Jun, Sep–Oct | Jul (28°C) |
| New Orleans | Feb–Apr, Oct–Nov | Jul (30°C) |
| San Diego | Apr–May, Sep–Nov | Aug (32°C) |
| Seattle | Jun–Sep | Aug (24°C) |
| Maui | Apr–May, Sep–Oct | Sep (22°C) |
| Nashville | Apr–May, Sep–Oct | Aug (32°C) |
| Austin | Mar–May, Oct–Nov | Aug (36°C) |
| Miami Beach | Nov–Apr | Aug (30°C) |
| Key West | Dec–Apr | Aug (30°C) |
| Denver | May–Jun, Sep–Oct | Jul (33°C) |
| Philadelphia | Apr–May, Sep–Oct | Jul (30°C) |
| Portland | Jun–Sep | Aug (29°C) |
| Atlanta | Mar–May, Oct–Nov | Jul (32°C) |
| San Antonio | Mar–May, Oct–Nov | Aug (36°C) |
| Charleston | Mar–May, Oct–Nov | Jul (32°C) |
| Savannah | Mar–May, Oct–Nov | Jul (33°C) |
| Fort Lauderdale | Dec–Apr | Aug (30°C) |
| Kauai | Apr–Jun, Sep–Oct | Sep (27°C) |
| Big Island | Apr–Jun, Sep–Oct | Aug (26°C) |
| Sedona | Mar–May, Sep–Nov | Jul (35°C) |
| Aspen | Jan–Mar, Jul–Sep | Jul (27°C) |
Quick answers
What is the best month to visit Aspen?
Jan–Mar, Jul–Sep. Jan–Mar is peak ski season. Jul–Sep is warm with hiking and festivals; late Sep brings aspen gold color. Apr–May and Nov are mud seasons when lifts and many shops close.
When is the rainy season in Aspen?
Rain peaks in April with about 51 mm. No month averages 150 mm or more.
What is the hottest month in Aspen?
July, with average highs of 27°C (80°F).
How cold does Aspen get?
The coolest nights are in January, averaging -12°C (10°F).
More about Aspen
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Sources
- NASA POWER climatology (2001–2020)
- Roaring Fork Transportation Authority (RFTA)
- Aspen/Pitkin County Airport
- City of Aspen
- Visit Aspen Snowmass
Climate averages are modelled from NASA POWER (MERRA-2) for 2001–2020 at about 50 km resolution, so coasts and valleys can differ a little. Temperatures are adjusted by 5.5°C for the city's elevation. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.