What is the air quality trend in Cranbrook?

Over the past 20 days, Cranbrook had an average AQI of 30 based on station measurements. The worst day was 2026-05-25 with AQI 54.

How is Cranbrook air quality measured?

Air quality in Cranbrook 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 Cranbrook, Canada

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

399h

PM2.5 Station

399h · 2 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	29	15–71	7.2 µg/m³	23h	2
2026-05-28	34	18–64	8.2 µg/m³	23h	2
2026-05-27	31	14–63	7.6 µg/m³	24h	2
2026-05-26	45	22–196	15.4 µg/m³	24h	2
2026-05-25	54	16–303	23.5 µg/m³	24h	2
2026-05-24	40	10–160	12.6 µg/m³	24h	2
2026-05-23	19	11–61	4.7 µg/m³	24h	1
2026-05-22	24	1–146	7.0 µg/m³	22h	2
2026-05-21	18	3–56	4.3 µg/m³	24h	2
2026-05-20	21	2–63	5.2 µg/m³	24h	1
2026-05-19	36	2–160	13.5 µg/m³	10h	1
2026-05-18	26	17–46	6.3 µg/m³	5h	1
2026-05-17	40	22–75	11.5 µg/m³	3h	1
2026-05-16	36	6–149	10.6 µg/m³	15h	1
2026-05-15	20	1–103	5.4 µg/m³	20h	2
2026-05-14	26	1–133	7.6 µg/m³	21h	2
2026-05-13	32	12–116	8.4 µg/m³	24h	2
2026-05-12	25	8–105	6.7 µg/m³	23h	2
2026-05-11	30	6–87	7.9 µg/m³	23h	2
2026-05-10	32	10–77	8.3 µg/m³	19h	2

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