What is the air quality in Windsor?

Windsor, Canada has an annual US AQI of 54 (Reasonable) and average PM2.5 of 11.6 µg/m³, ranking #1251 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Windsor?

October is typically the cleanest month (AQI 47) and July the most polluted (AQI 60).

Where does Windsor's air quality data come from?

PM2.5: 1998–2026 (monitors 1999–2000, low-cost sensors 2025–2026, satellite 1998–1999, 2001–2024). Measured by government monitoring stations. Full sources are on the methodology page.

Windsor, Canada — Air Quality & Clean City Guide 2026

Windsor Air Quality Data

Global rank	City	Continent	AQI	PM2.5
1251	Windsor, Canada	North America	AQI 54	PM2.5 11.6 µg/m³