Boulder
3 monitoring stations · readings from 33 to 38
Average AQI
Air quality in Boulder
Air quality in Boulder is currently 36 on the AQI scale, which falls in the Good band. That number is the average across every monitoring station reporting in Boulder right now.
We aggregate 3 stations across Boulder. Individual stations range from 33 at the cleanest to 38 at the worst, so conditions vary across Boulder — the local figure matters more than the average.
Boulder breaks down into 3 stations you can open individually. Of those listed below, 20th Street is reading highest at 38 and Athens lowest at 33.
Readings refresh hourly from the official monitoring networks we track. Conditions can still change quickly, so check back before planning time outdoors.
What to do at good levels
Outdoor activity
No restrictions. This is a good day for exercise, commuting on foot or bike, and time outside.
Sensitive groups
Children, older adults and people with asthma or heart conditions can go about their day as normal.
Indoor air
Open the windows. Outdoor air is currently cleaner than typical indoor air, so ventilating helps.
Stations in Boulder
About Boulder
Coordinates
40.032, -105.251
Centroid of monitored stations
Stations
3
Reporting in this area
Spread
33 – 38
Cleanest to worst station reading
Boulder air quality, answered
Boulder is currently reading an AQI of 36, which is Good. It is the average across 3 reporting stations.
No restrictions. This is a good day for exercise, commuting on foot or bike, and time outside. Children, older adults and people with asthma or heart conditions can go about their day as normal.
36 sits in the Good band of the air quality index. The index runs from 0 to 500, and the lower the number the cleaner the air.
We currently aggregate 3 stations in Boulder, reading between 33 and 38.
Of the stations currently listed for Boulder, 20th Street is reading highest at 38 (Good).
Hourly. We pull from the official monitoring networks that publish for this city, and this page refreshes on the same cadence.
See Boulder on the map.
Every station around it, live — or find out what today's reading means for you personally.