Hughes County, South Dakota
AQI 14 · Good14
Median AQI
41
90th Percentile
88
Max AQI
179
Days with Data
Ranked #1 of 10 counties in South Dakota (by median AQI, lower is better)
Monthly Median AQI — 2025
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14
Median AQI
41
90th Percentile
88
Max AQI
179
Days with Data
Ranked #1 of 10 counties in South Dakota (by median AQI, lower is better)
Click a bar to view that month's details