What is the air quality in Sumter SC?

Sumter SC, United States of America has an annual US AQI of 50 (Reasonable) and average PM2.5 of 10.2 µg/m³, ranking #795 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Sumter SC?

December is typically the cleanest month (AQI 46) and July the most polluted (AQI 57).

Where does Sumter SC'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.

Sumter SC, United States of America — Air Quality & Clean City Guide 2026

Sumter SC Air Quality Data

Global rank	City	Continent	AQI	PM2.5
795	Sumter SC, United States of America	North America	AQI 50	PM2.5 10.2 µg/m³