Lehigh County, Pennsylvania
AQI 42 · Good42
Median AQI
67
90th Percentile
115
Max AQI
208
Days with Data
Ranked #24 of 37 counties in Pennsylvania (by median AQI, lower is better)
Monthly Median AQI — 2025
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42
Median AQI
67
90th Percentile
115
Max AQI
208
Days with Data
Ranked #24 of 37 counties in Pennsylvania (by median AQI, lower is better)
Click a bar to view that month's details