Windham County, Connecticut
AQI 37 · Good37
Median AQI
50
90th Percentile
108
Max AQI
241
Days with Data
Ranked #1 of 8 counties in Connecticut (by median AQI, lower is better)
Monthly Median AQI — 2025
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37
Median AQI
50
90th Percentile
108
Max AQI
241
Days with Data
Ranked #1 of 8 counties in Connecticut (by median AQI, lower is better)
Click a bar to view that month's details