Monterey County, California
AQI 40 · Good40
Median AQI
55
90th Percentile
62
Max AQI
182
Days with Data
Ranked #16 of 46 counties in California (by median AQI, lower is better)
Monthly Median AQI — 2025
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40
Median AQI
55
90th Percentile
62
Max AQI
182
Days with Data
Ranked #16 of 46 counties in California (by median AQI, lower is better)
Click a bar to view that month's details