What is the air quality in Appleton WI?

Appleton WI, United States of America has an annual US AQI of 48 (Reasonable) and average PM2.5 of 9.3 µg/m³, ranking #612 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Appleton WI?

October is typically the cleanest month (AQI 39) and February the most polluted (AQI 53).

Where does Appleton WI's air quality data come from?

PM2.5: 1998–2026 (monitors 1999–2026, satellite 1998–1999, 2005; 2026 provisional (AirNow)). Measured by government monitoring stations. Full sources are on the methodology page.

Appleton WI, United States of America — Air Quality & Clean City Guide 2026

Appleton WI Air Quality Data

Global rank	City	Continent	AQI	PM2.5
612	Appleton WI, United States of America	North America	AQI 48	PM2.5 9.3 µg/m³