Cass County, Nebraska
AQI 20 · Good20
Median AQI
35
90th Percentile
64
Max AQI
288
Days with Data
Ranked #2 of 10 counties in Nebraska (by median AQI, lower is better)
Monthly Median AQI — 2025
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20
Median AQI
35
90th Percentile
64
Max AQI
288
Days with Data
Ranked #2 of 10 counties in Nebraska (by median AQI, lower is better)
Click a bar to view that month's details