Johnson County, Wyoming
AQI 42 · Good42
Median AQI
50
90th Percentile
84
Max AQI
180
Days with Data
Ranked #9 of 17 counties in Wyoming (by median AQI, lower is better)
Monthly Median AQI — 2025
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42
Median AQI
50
90th Percentile
84
Max AQI
180
Days with Data
Ranked #9 of 17 counties in Wyoming (by median AQI, lower is better)
Click a bar to view that month's details