What is the air quality in Tacoma WA?

Tacoma WA, United States of America has an annual US AQI of 44 (Reasonable) and average PM2.5 of 8.6 µg/m³, ranking #433 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Tacoma WA?

June is typically the cleanest month (AQI 34) and November the most polluted (AQI 55).

Where does Tacoma WA'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.

Tacoma WA, United States of America — Air Quality & Clean City Guide 2026

Tacoma WA Air Quality Data

Global rank	City	Continent	AQI	PM2.5
433	Tacoma WA, United States of America	North America	AQI 44	PM2.5 8.6 µg/m³