What is the air quality in Bellevue WA?

Bellevue WA, United States of America has an annual US AQI of 36 (Reasonable) and average PM2.5 of 5.8 µg/m³, ranking #154 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Bellevue WA?

March is typically the cleanest month (AQI 33) and August the most polluted (AQI 39).

Where does Bellevue WA's air quality data come from?

PM2.5: 1998–2026 (monitors 1999–2012, 2015–2017, 2019, 2021–2022, 2024–2026, satellite 1998–2000, 2002–2003, 2013–2014, 2018, 2020, 2023; 2026 provisional (AirNow)). Measured by government monitoring stations. Full sources are on the methodology page.

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

Bellevue WA Air Quality Data

Global rank	City	Continent	AQI	PM2.5
154	Bellevue WA, United States of America	North America	AQI 36	PM2.5 5.8 µg/m³