What is the air quality in Fresno CA?

Fresno CA, United States of America has an annual US AQI of 75 (Polluted) and average PM2.5 of 16.2 µg/m³, ranking #3515 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Fresno CA?

March is typically the cleanest month (AQI 50) and December the most polluted (AQI 93).

Where does Fresno CA's air quality data come from?

PM2.5: 1998–2026 (monitors 1999–2026, satellite 1998, 2000; 2026 provisional (AirNow)). Measured by government monitoring stations. Full sources are on the methodology page.

Fresno CA, United States of America — Air Quality & Clean City Guide 2026

Fresno CA Air Quality Data

Global rank	City	Continent	AQI	PM2.5
3515	Fresno CA, United States of America	North America	AQI 75	PM2.5 16.2 µg/m³