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Weather & Climate in Aspen, CO
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Aspen has a cool climate with an average annual temperature of 41°F (5°C). Winters average 21°F in January while summers reach 62°F in July. The area gets 326 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 24.5 inches (drier than the 38-inch national average). The area receives 170.8 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 7,926 feet.
Temperature
21°F Jan (-6°C)
62°F Jul (17°C)
| Annual Average | 40.6°F |
| 25% below US avg | |
| January Average | 21°F (-6°C) |
| July Average | 62°F (17°C) |
| Sunny Days | 326 days/yr |
Geography
| Elevation | 7,926 ft (2,416 m) |
| Area | 3.9 sq mi (10.0 km²) |
| Population Density | 1,778/sq mi |
| Coordinates | 39.1952°N, 106.8368°W |
| Timezone | America/Denver |
| County | Pitkin County County |
| Nearest Airport | Eagle County Regional (EGE) 31 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 54.1 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 69.0 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | No Rating |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Very Low |
| Landslide | Relatively High |
| Volcano | Very Low |
| Avalanche | Very High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
56 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.3.
| Jan 31, 2002 | 28 km SSW of Craig, Colorado | M4.3 | 142 km | 5 km |
| Aug 9, 2001 | 11 km NNE of Chacra, Colorado | M4.0 | 70 km | 5 km |
| Feb 10, 2006 | 1 km NNE of Chacra, Colorado | M3.8 | 68 km | 5 km |
| Jun 6, 2011 | 17 km NNW of Oak Creek, Colorado | M3.5 | 137 km | 5 km |
| Apr 10, 2011 | 12 km N of Oak Creek, Colorado | M3.4 | 133 km | 5 km |
| Aug 21, 2012 | 12 km SSW of Gypsum, Colorado | M3.4 | 40 km | 5 km |
| Jan 30, 2017 | 5 km SW of New Castle, Colorado | M3.3 | 75 km | 5 km |
| Jul 8, 1993 | 9 km ENE of Aspen, Colorado | M3.1 | 11 km | 5 km |
| Jul 22, 2001 | 6 km WNW of Woodland Park, Colorado | M3.1 | 149 km | 5 km |
| Feb 1, 2019 | 3 km NW of Glenwood Springs, Colorado | M3.1 | 61 km | 2 km |
| Jan 26, 2008 | 12 km NE of Cotopaxi, Colorado | M3.1 | 137 km | 5 km |
| Sep 12, 1990 | 13 km NW of Silverthorne, Colorado | M3.0 | 78 km | 5 km |
| Dec 5, 2000 | 10 km NNW of Redstone, Colorado | M2.9 | 40 km | 5 km |
| May 1, 2009 | 21 km NW of Dotsero, Colorado | M2.9 | 74 km | 5 km |
| Oct 18, 2024 | 6 km NNE of Chacra, Colorado | M2.9 | 69 km | 5 km |
| Feb 26, 2008 | 29 km WNW of Westcreek, Colorado | M2.9 | 118 km | 2 km |
| May 2, 2013 | 2 km E of Loghill Village, Colorado | M2.9 | 136 km | 4 km |
| Jan 1, 2003 | 6 km SE of Aspen, Colorado | M2.9 | 8 km | 5 km |
| Oct 27, 2013 | 17 km NNW of Oak Creek, Colorado | M2.8 | 137 km | 1 km |
| Jul 30, 2000 | 7 km SW of Steamboat Springs, Colorado | M2.8 | 139 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
7 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2.
| Date | Rating | Distance | Path | Fatalities |
| Jun 13, 1977 | EF2 | 79 km | 1.0 mi | 0 |
| Jun 20, 1975 | EF2 | 34 km | 0.5 mi | 0 |
| May 13, 2004 | EF1 | 88 km | 0.7 mi | 0 |
| Apr 6, 1974 | EF1 | 53 km | 0.1 mi | 0 |
| Jul 23, 2018 | EF0 | 92 km | 0.0 mi | 0 |
| Jul 5, 2018 | EF0 | 74 km | 0.0 mi | 0 |
| Jun 30, 2004 | EF0 | 51 km | 0.1 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: GRIZZLY CREEK (30,705 acres, 2020).
| Year | Name | Acres Burned | Distance |
| 2020 | GRIZZLY CREEK | 30,705 | 55 km |
| 2002 | BIG FISH | 17,273 | 96 km |
| 2018 | WESTON PASS | 13,169 | 72 km |
| 2018 | LAKE CHRISTINE | 12,506 | 30 km |
| 2002 | COAL SEAM | 12,007 | 62 km |
| 2002 | SPRING CREEK | 10,552 | 78 km |
| 2016 | LOST SOLAR | 5,141 | 92 km |
| 1994 | WAKE | 3,834 | 81 km |
| 2021 | SYLVAN | 3,480 | 30 km |
| 2004 | MCGRUDER | 2,998 | 91 km |
| 2018 | CACHE CREEK | 2,690 | 94 km |
| 1994 | SO. CANYON | 2,014 | 65 km |
| 2023 | THREEMILE CREEK RX | 1,863 | 81 km |
| 2023 | LOWLINE | 1,855 | 57 km |
| 1988 | FLAT IRON | 1,679 | 88 km |
| 2010 | MEADOW CREEK | 1,432 | 84 km |
| 2001 | BATTLEMENT | 1,401 | 92 km |
| 2002 | WILEY RIDG | 1,396 | 66 km |
| 2003 | DOTSERO CRATER | 1,322 | 55 km |
| 2007 | NEWCASTLE | 1,269 | 69 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 21°F (-6°C) | 1.4 in | |
| February | 19°F (-7°C) | 1.1 in | Driest |
| March | 26°F (-3°C) | 1.4 in | |
| April | 34°F (1°C) | 1.2 in | |
| May | 44°F (7°C) | 1.3 in | |
| June | 53°F (12°C) | 1.1 in | |
| July | 62°F (17°C) | 1.6 in | Warmest |
| August | 59°F (15°C) | 1.7 in | Wettest |
| September | 52°F (11°C) | 1.5 in | |
| October | 42°F (6°C) | 1.3 in | |
| November | 29°F (-2°C) | 1.3 in | |
| December | 19°F (-7°C) | 1.5 in | Coldest |
Aspen has a seasonal temperature swing of 43°F / from 19°F in December to 62°F in July. Total annual precipitation is 16.4 inches, with August being the wettest month (1.7") and February the driest (1.1").