What is the air quality trend in Huntsville?

Over the past 14 days, Huntsville had an average AQI of 47 based on station measurements. The worst day was 2026-07-18 with AQI 148.

How is Huntsville air quality measured?

Air quality in Huntsville 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 Huntsville, Canada

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

Historical PM2.5 and AQI trend from monitoring stations near Huntsville, Canada.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

197h

PM2.5 Station

197h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	28	17–39	6.8 µg/m³	4h	1
2026-07-21	81	27–123	26.8 µg/m³	24h	1
2026-07-20	20	8–40	4.7 µg/m³	24h	1
2026-07-19	38	13–122	11.6 µg/m³	24h	1
2026-07-18	148	77–174	68.4 µg/m³	24h	1
2026-07-17	16	4–79	4.1 µg/m³	24h	1
2026-07-16	35	16–58	8.7 µg/m³	4h	1
2026-07-14	31	18–38	7.5 µg/m³	3h	1
2026-07-13	51	3–63	14.0 µg/m³	7h	1
2026-07-12	113	68–152	39.9 µg/m³	7h	1
2026-07-11	52	34–80	14.0 µg/m³	14h	1
2026-07-10	20	13–42	4.8 µg/m³	14h	1
2026-07-09	19	4–30	4.5 µg/m³	13h	1
2026-07-08	18	2–34	4.4 µg/m³	11h	1

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