What is the air quality in Phoenix AZ?

Phoenix AZ, United States of America has an annual US AQI of 56 (Reasonable) and average PM2.5 of 9.9 µg/m³, ranking #1403 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Phoenix AZ?

March is typically the cleanest month (AQI 47) and December the most polluted (AQI 68).

Where does Phoenix AZ'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.

Phoenix AZ, United States of America — Air Quality & Clean City Guide 2026

Phoenix AZ Air Quality Data

Global rank	City	Continent	AQI	PM2.5
1403	Phoenix AZ, United States of America	North America	AQI 56	PM2.5 9.9 µg/m³