What is the air quality trend in Joliette?

Over the past 21 days, Joliette had an average AQI of 31 based on station measurements. The worst day was 2026-08-16 with AQI 45.

How is Joliette air quality measured?

Air quality in Joliette 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 Joliette, Canada

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

476h

PM2.5 Station

476h · 6 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-05	17	12–22	4.0 µg/m³	14h	9
2026-09-04	19	15–25	4.6 µg/m³	24h	10
2026-09-03	23	16–33	5.5 µg/m³	24h	8
2026-09-02	36	12–313	16.5 µg/m³	24h	9
2026-09-01	26	16–66	6.5 µg/m³	24h	11
2026-08-31	25	15–60	6.0 µg/m³	24h	9
2026-08-30	23	13–34	5.5 µg/m³	24h	10
2026-08-29	27	15–70	7.0 µg/m³	24h	9
2026-08-28	27	12–58	6.5 µg/m³	24h	9
2026-08-27	31	17–53	7.5 µg/m³	24h	8
2026-08-26	40	19–93	10.2 µg/m³	24h	8
2026-08-25	30	12–55	7.3 µg/m³	24h	10
2026-08-24	26	16–41	6.2 µg/m³	24h	10
2026-08-23	29	18–63	7.1 µg/m³	24h	10
2026-08-22	41	22–66	10.4 µg/m³	24h	9
2026-08-21	44	22–119	12.0 µg/m³	24h	9
2026-08-20	35	14–78	8.9 µg/m³	24h	10
2026-08-19	43	13–163	12.6 µg/m³	24h	7
2026-08-18	35	17–60	8.5 µg/m³	24h	10
2026-08-17	35	14–53	8.4 µg/m³	24h	9
2026-08-16	45	28–82	12.2 µg/m³	6h	9

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