What is the air quality trend in Massillon?

Over the past 7 days, Massillon had an average AQI of 71 based on station measurements. The worst day was 2026-07-19 with AQI 124.

How is Massillon air quality measured?

Air quality in Massillon is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Massillon, United States

Name: Massillon Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Massillon, United States.

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

75h

PM2.5 Station

75h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	53	8–72	14.7 µg/m³	10h	1
2026-07-20	89	13–153	31.7 µg/m³	4h	1
2026-07-19	124	60–169	51.8 µg/m³	7h	1
2026-07-18	46	16–76	11.8 µg/m³	13h	1
2026-07-17	89	22–397	58.7 µg/m³	12h	1
2026-07-16	53	20–193	18.5 µg/m³	17h	1
2026-07-15	45	13–65	11.2 µg/m³	12h	1

Back to Massillon Air Quality