What is the air quality trend in Seymour?

Over the past 8 days, Seymour had an average AQI of 54 based on station measurements. The worst day was 2026-07-17 with AQI 74.

How is Seymour air quality measured?

Air quality in Seymour 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 Seymour, United States

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

130h

PM2.5 Station

130h · 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	45	22–68	11.8 µg/m³	12h	1
2026-07-20	68	23–152	20.9 µg/m³	16h	1
2026-07-19	55	21–147	16.7 µg/m³	20h	1
2026-07-18	57	15–161	18.1 µg/m³	17h	1
2026-07-17	74	17–207	34.0 µg/m³	20h	1
2026-07-16	66	19–368	31.3 µg/m³	22h	1
2026-07-15	39	21–55	9.6 µg/m³	21h	1
2026-07-14	34	30–38	8.2 µg/m³	2h	1

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