Phillips County, Montana
AQI 18 · Good18
Median AQI
41
90th Percentile
168
Max AQI
171
Days with Data
Ranked #12 of 23 counties in Montana (by median AQI, lower is better)
Monthly Median AQI — 2025
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18
Median AQI
41
90th Percentile
168
Max AQI
171
Days with Data
Ranked #12 of 23 counties in Montana (by median AQI, lower is better)
Click a bar to view that month's details