What is the air quality in Sierra Vista AZ?

Sierra Vista AZ, United States of America has an annual US AQI of 40 (Reasonable) and average PM2.5 of 5.5 µg/m³, ranking #250 of 5856 cities. Main pollutant: O3.

What is the cleanest month in Sierra Vista AZ?

January is typically the cleanest month (AQI 33) and May the most polluted (AQI 47).

Where does Sierra Vista AZ's air quality data come from?

PM2.5: 1998–2024 (satellite). From satellite data, because no government monitor covers the city. Full sources are on the methodology page.

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

Sierra Vista AZ Air Quality Data

Global rank	City	Continent	AQI	PM2.5
250	Sierra Vista AZ, United States of America	North America	AQI 40	PM2.5 5.5 µg/m³