Rock County, Wisconsin
AQI 42 · Good42
Median AQI
64
90th Percentile
93
Max AQI
92
Days with Data
Ranked #28 of 29 counties in Wisconsin (by median AQI, lower is better)
Monthly Median AQI — 2025
Click a bar to view that month's details
42
Median AQI
64
90th Percentile
93
Max AQI
92
Days with Data
Ranked #28 of 29 counties in Wisconsin (by median AQI, lower is better)
Click a bar to view that month's details