What is the air quality in Allentown PA?

Allentown PA, United States of America has an annual US AQI of 53 (Reasonable) and average PM2.5 of 11 µg/m³, ranking #1061 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Allentown PA?

October is typically the cleanest month (AQI 43) and July the most polluted (AQI 60).

Where does Allentown PA's air quality data come from?

PM2.5: 1998–2026 (monitors 1999–2005, 2010–2026, satellite 1998–1999, 2003, 2006–2009, 2012, 2017, 2020, 2022; 2026 provisional (AirNow)). Measured by government monitoring stations. Full sources are on the methodology page.

Allentown PA, United States of America — Air Quality & Clean City Guide 2026

Allentown PA Air Quality Data

Global rank	City	Continent	AQI	PM2.5
1061	Allentown PA, United States of America	North America	AQI 53	PM2.5 11 µg/m³