Franklin County, Idaho
AQI 22 · Good22
Median AQI
40
90th Percentile
82
Max AQI
167
Days with Data
Ranked #4 of 19 counties in Idaho (by median AQI, lower is better)
Monthly Median AQI — 2025
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22
Median AQI
40
90th Percentile
82
Max AQI
167
Days with Data
Ranked #4 of 19 counties in Idaho (by median AQI, lower is better)
Click a bar to view that month's details