Dewey County, Oklahoma
AQI 49 · Good49
Median AQI
71
90th Percentile
164
Max AQI
272
Days with Data
Ranked #17 of 20 counties in Oklahoma (by median AQI, lower is better)
Monthly Median AQI — 2025
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49
Median AQI
71
90th Percentile
164
Max AQI
272
Days with Data
Ranked #17 of 20 counties in Oklahoma (by median AQI, lower is better)
Click a bar to view that month's details