Connecticut
18 monitoring stations · readings from 46 to 54
Average AQI
Air quality in Connecticut
Air quality in Connecticut is currently 47 on the AQI scale, which falls in the Good band. That number is the average across every monitoring station reporting in Connecticut right now.
We aggregate 18 stations across Connecticut. Individual stations range from 46 at the cleanest to 54 at the worst, so conditions vary across Connecticut — the local figure matters more than the average.
Connecticut breaks down into 11 cities you can open individually. Of those listed below, Danbury is reading highest at 54 and Litchfield lowest at 46.
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.
Cities in Connecticut
11 cities
54Danbury
Moderate
- Stations
- 2
- Range
- 54–54
47Bridgeport
Good
- Stations
- 2
- Range
- 46–47
47Groton
Good
- Stations
- 2
- Range
- 46–47
47Hartford
Good
- Stations
- 2
- Range
- 46–47
47New Haven
Good
- Stations
- 2
- Range
- 46–47
Pomfret
Good
- Stations
- 1
- Range
- 47–47
Cornwall
Good
- Stations
- 1
- Range
- 46–46
46East Hartford
Good
- Stations
- 2
- Range
- 46–46
Litchfield
Good
- Stations
- 1
- Range
- 46–46
46Waterbury
Good
- Stations
- 2
- Range
- 46–46
Westport
Good
- Stations
- 1
- Range
- 46–46
About Connecticut
Coordinates
41.516, -72.884
Centroid of monitored stations
Stations
18
Reporting in this area
Spread
46 – 54
Cleanest to worst station reading
Other regions nearby
Connecticut air quality, answered
Connecticut is currently reading an AQI of 47, which is Good. It is the average across 18 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.
47 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 18 stations in Connecticut, reading between 46 and 54.
Of the cities currently listed for Connecticut, Danbury is reading highest at 54 (Moderate).
Hourly. We pull from the official monitoring networks that publish for this region, and this page refreshes on the same cadence.
See Connecticut on the map.
Every station around it, live — or find out what today's reading means for you personally.