What is the air quality in Pueblo CO?

Pueblo CO, United States of America has an annual US AQI of 44 (Reasonable) and average PM2.5 of 6.4 µg/m³, ranking #400 of 5856 cities. Main pollutant: O3.

What is the cleanest month in Pueblo CO?

October is typically the cleanest month (AQI 37) and July the most polluted (AQI 53).

Where does Pueblo CO's air quality data come from?

PM2.5: 1998–2026 (monitors 1999–2026, satellite 1998–1999, 2002, 2007–2009, 2011–2012, 2014, 2018, 2020–2021; 2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Pueblo CO, United States of America — Air Quality & Clean City Guide 2026

Pueblo CO Air Quality Data

Global rank	City	Continent	AQI	PM2.5
400	Pueblo CO, United States of America	North America	AQI 44	PM2.5 6.4 µg/m³