What is the air quality trend in Yellowknife?

Over the past 15 days, Yellowknife had an average AQI of 47 based on station measurements. The worst day was 2026-06-07 with AQI 77.

How is Yellowknife air quality measured?

Air quality in Yellowknife 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 Yellowknife, Canada

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

260h

PM2.5 Station

260h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-06-09	46	13–98	12.4 µg/m³	8h	3
2026-06-08	37	9–132	10.7 µg/m³	20h	2
2026-06-07	77	12–298	33.8 µg/m³	16h	2
2026-06-06	39	13–102	11.0 µg/m³	15h	2
2026-06-05	57	14–104	17.5 µg/m³	14h	2
2026-06-04	55	14–154	17.8 µg/m³	17h	2
2026-06-03	52	20–85	14.6 µg/m³	11h	2
2026-06-02	42	13–119	11.9 µg/m³	17h	2
2026-06-01	46	4–128	13.3 µg/m³	19h	3
2026-05-31	42	8–157	12.3 µg/m³	22h	3
2026-05-30	43	18–91	11.5 µg/m³	21h	3
2026-05-29	47	15–95	13.3 µg/m³	23h	4
2026-05-28	38	3–137	10.4 µg/m³	24h	3
2026-05-27	38	9–99	10.6 µg/m³	22h	3
2026-05-26	55	5–147	17.2 µg/m³	11h	2

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