What is the air quality trend in Massillon?

Over the past 21 days, Massillon had an average AQI of 33 based on station measurements. The worst day was 2026-05-17 with AQI 44.

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
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

430h

PM2.5 Station

430h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	42	19–76	11.2 µg/m³	8h	1
2026-05-29	37	23–66	9.0 µg/m³	20h	1
2026-05-28	29	8–56	7.0 µg/m³	23h	2
2026-05-27	31	16–60	7.6 µg/m³	23h	1
2026-05-26	33	13–83	8.1 µg/m³	22h	2
2026-05-25	23	5–42	5.5 µg/m³	23h	1
2026-05-24	29	15–74	7.3 µg/m³	22h	2
2026-05-23	25	8–38	6.0 µg/m³	21h	1
2026-05-22	24	11–40	5.8 µg/m³	23h	1
2026-05-21	25	11–57	6.1 µg/m³	21h	1
2026-05-20	31	18–49	7.3 µg/m³	23h	1
2026-05-19	38	15–61	9.5 µg/m³	23h	1
2026-05-18	41	14–54	9.9 µg/m³	19h	1
2026-05-17	44	15–85	11.1 µg/m³	18h	2
2026-05-16	31	17–56	7.5 µg/m³	20h	2
2026-05-15	27	15–44	6.4 µg/m³	19h	2
2026-05-14	43	19–187	14.0 µg/m³	22h	2
2026-05-13	37	19–55	8.8 µg/m³	20h	2
2026-05-12	35	5–76	8.9 µg/m³	24h	2
2026-05-11	37	22–73	9.1 µg/m³	22h	1
2026-05-10	43	22–57	10.5 µg/m³	14h	2

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