Spencer County, Indiana
AQI 42 · Good42
Median AQI
59
90th Percentile
88
Max AQI
273
Days with Data
Ranked #18 of 33 counties in Indiana (by median AQI, lower is better)
Monthly Median AQI — 2025
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42
Median AQI
59
90th Percentile
88
Max AQI
273
Days with Data
Ranked #18 of 33 counties in Indiana (by median AQI, lower is better)
Click a bar to view that month's details