Hardin County, Kentucky
AQI 44 · Good44
Median AQI
56
90th Percentile
73
Max AQI
127
Days with Data
Ranked #24 of 25 counties in Kentucky (by median AQI, lower is better)
Monthly Median AQI — 2025
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44
Median AQI
56
90th Percentile
73
Max AQI
127
Days with Data
Ranked #24 of 25 counties in Kentucky (by median AQI, lower is better)
Click a bar to view that month's details