What is the air quality in Tucson AZ?

Tucson AZ, United States of America has an annual US AQI of 44 (Reasonable) and average PM2.5 of 6.1 µg/m³, ranking #399 of 5856 cities. Main pollutant: O3.

What is the cleanest month in Tucson AZ?

February is typically the cleanest month (AQI 37) and May the most polluted (AQI 52).

Where does Tucson AZ's air quality data come from?

PM2.5: 1998–2026 (monitors 1999–2026, satellite 1998–2003; 2026 provisional (AirNow)). Measured by government monitoring stations. Full sources are on the methodology page.

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

Tucson AZ Air Quality Data

Global rank	City	Continent	AQI	PM2.5
399	Tucson AZ, United States of America	North America	AQI 44	PM2.5 6.1 µg/m³