Winona County, Minnesota
AQI 19 · Good19
Median AQI
49
90th Percentile
57
Max AQI
17
Days with Data
Ranked #3 of 22 counties in Minnesota (by median AQI, lower is better)
Monthly Median AQI — 2025
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19
Median AQI
49
90th Percentile
57
Max AQI
17
Days with Data
Ranked #3 of 22 counties in Minnesota (by median AQI, lower is better)
Click a bar to view that month's details