What is the air quality trend in Windsor?

Over the past 7 days, Windsor had an average AQI of 22 based on station measurements. The worst day was 2026-05-27 with AQI 37.

How is Windsor air quality measured?

Air quality in Windsor 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 Windsor, Canada

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

105h

PM2.5 Station

105h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-30	13	6–21	3.1 µg/m³	3.6	3h	1
2026-05-29	7	4–15	1.7 µg/m³	2.2	7h	1
2026-05-28	4	4–5	1.0 µg/m³	1.7	4h	1
2026-05-27	37	1–90	10.9 µg/m³	11.5	21h	1
2026-05-26	36	2–138	11.4 µg/m³	12.7	23h	1
2026-05-25	30	1–97	8.2 µg/m³	9.0	24h	1
2026-05-24	33	3–85	8.9 µg/m³	9.4	23h	1

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