Fresno County, California
AQI 54 · Moderate54
Median AQI
100
90th Percentile
157
Max AQI
304
Days with Data
Ranked #37 of 46 counties in California (by median AQI, lower is better)
Monthly Median AQI — 2025
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54
Median AQI
100
90th Percentile
157
Max AQI
304
Days with Data
Ranked #37 of 46 counties in California (by median AQI, lower is better)
Click a bar to view that month's details