Webster County, Iowa
AQI 48 · Good48
Median AQI
68
90th Percentile
165
Max AQI
123
Days with Data
Ranked #15 of 15 counties in Iowa (by median AQI, lower is better)
Monthly Median AQI — 2025
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48
Median AQI
68
90th Percentile
165
Max AQI
123
Days with Data
Ranked #15 of 15 counties in Iowa (by median AQI, lower is better)
Click a bar to view that month's details