Butler County, Ohio
AQI 55 · Moderate55
Median AQI
77
90th Percentile
151
Max AQI
273
Days with Data
Ranked #37 of 37 counties in Ohio (by median AQI, lower is better)
Monthly Median AQI — 2025
Click a bar to view that month's details
55
Median AQI
77
90th Percentile
151
Max AQI
273
Days with Data
Ranked #37 of 37 counties in Ohio (by median AQI, lower is better)
Click a bar to view that month's details