Aspen's summer air is usually about as clean as it gets. On a handful of days this season, drifting smoke from Utah and Nevada wildfires has nudged the air quality index (AQI) up from Good into Moderate for a few days, but the average score has been Good. Here's what that actually means for a stay in Aspen Snowmass, and how to read the numbers if you're checking conditions before or during a trip.
Quick Facts
- Current air quality driver: regional wildfire smoke, including Utah, Nevada, and the Pacific Northwest, but afternoon thunderstorms have helped clear the skies
- Recent 10-day range (early to mid August): AQI Good
- Highest single reading in that span: 55 AQI on August 7, still within the Moderate range
- Where to check current conditions: City of Aspen Current Air Quality
The recent trend
Over the past 10 days, Aspen's AQI has averaged Good at 43 AQI, with a few days sitting in Moderate.
- Aug 14 — AQI 31, Good: Crisp morning air; clearing wind patterns.
- Aug 13 — AQI 40, Good: Stable conditions; minimal low-level smoke haze.
- Aug 12 — AQI 35, Good: Clean mountain air; particulate levels remained low.
- Aug 11 — AQI 33, Good: Breezy afternoon; dispersed regional smoke drift.
- Aug 10 — AQI 42, Good: Clear skies; minor high-altitude haze.
- Aug 9 — AQI 48, Good: Approaching the moderate threshold but stayed healthy.
- Aug 8 — AQI 52, Moderate: Minor cross-state smoke drift settled temporarily.
- Aug 7 — AQI 55, Moderate: Record heat in the region (90°F) trapped brief surface haze.
- Aug 6 — AQI 46, Good: High winds dispersed lingering smoke plumes.
- Aug 5 — AQI 51, Moderate: Lingering surface smoke from regional cold front movement.
How to read the AQI scale
- 0–50 (Good): No health impacts for anyone.
- 51–100 (Moderate): Air quality is acceptable for the general public. This is where nearly all of the recent readings have landed. Unusually sensitive individuals may notice minor effects, but this range is not a concern for most guests hiking, biking, or dining outdoors.
- 101–150 (Unhealthy for Sensitive Groups): Not reached during this stretch. Recent readings have stayed at or below the top of the Moderate range.
Air Quality FAQs
Should sensitive groups take any precautions?
Small children, older adults, and guests with heart or lung conditions may want to pace prolonged or heavy outdoor exertion on the higher-AQI days noted above. The general public is not meaningfully affected at these levels.
Is there a reason to change travel plans?
No. Nothing in the recent data suggests air quality alone is a reason to cancel or reschedule a trip to Aspen Snowmass. Outdoor plans — hiking, biking, time on the Gondola, dining al fresco — remain reasonable for the vast majority of visitors. Guests in a sensitive group may simply want to keep half an eye on daily conditions and choose lighter activity on the higher end of the range.
Where can I check conditions during my stay?
Bookmark the City of Aspen's Current Air Quality page for real-time readings throughout your visit.
Frias Properties of Aspen Snowmass has been managing vacation rentals across Aspen, Aspen Highlands, and Snowmass Village since 1974. For questions about your stay, reach our team at 970.920.2000 or FriasProperties.com.