Butte County, California
AQI 47 · Good47
Median AQI
59
90th Percentile
96
Max AQI
245
Days with Data
Ranked #28 of 46 counties in California (by median AQI, lower is better)
Monthly Median AQI — 2025
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47
Median AQI
59
90th Percentile
96
Max AQI
245
Days with Data
Ranked #28 of 46 counties in California (by median AQI, lower is better)
Click a bar to view that month's details