What is the air quality in Dayton OH?

Dayton OH, United States of America has an annual US AQI of 56 (Reasonable) and average PM2.5 of 12.1 µg/m³, ranking #1443 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Dayton OH?

October is typically the cleanest month (AQI 49) and July the most polluted (AQI 62).

Where does Dayton OH's air quality data come from?

PM2.5: 1998–2026 (monitors 1999–2026, satellite 1998; 2026 provisional (AirNow)). Measured by government monitoring stations. Full sources are on the methodology page.

Dayton OH, United States of America — Air Quality & Clean City Guide 2026

Dayton OH Air Quality Data

Global rank	City	Continent	AQI	PM2.5
1443	Dayton OH, United States of America	North America	AQI 56	PM2.5 12.1 µg/m³