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Air Quality History for Montréal, Canada

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

44
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

457h

PM2.5 Station

457h · 3 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-07-21 58 32–85 16.5 µg/m³ 7.7 23h 3
2026-07-20 39 15–57 9.4 µg/m³ 3.8 24h 3
2026-07-19 46 9–157 15.0 µg/m³ 6.9 24h 3
2026-07-18 59 21–169 21.7 µg/m³ 9.8 24h 3
2026-07-17 18 4–34 4.2 µg/m³ 1.6 24h 3
2026-07-16 42 6–76 11.0 µg/m³ 5.3 24h 3
2026-07-15 82 17–149 27.8 µg/m³ 13.5 24h 3
2026-07-14 84 61–115 27.4 µg/m³ 12.6 24h 3
2026-07-13 85 66–102 28.4 µg/m³ 13.1 24h 3
2026-07-12 55 30–86 15.5 µg/m³ 7.1 24h 3
2026-07-11 45 29–59 11.1 µg/m³ 4.9 24h 3
2026-07-10 61 37–84 17.3 µg/m³ 7.1 24h 3
2026-07-09 41 4–77 11.4 µg/m³ 4.3 24h 3
2026-07-08 50 19–69 13.2 µg/m³ 5.6 24h 3
2026-07-07 59 37–75 16.2 µg/m³ 9.5 24h 3
2026-07-06 58 31–69 16.0 µg/m³ 11.2 13h 3
2026-07-05 38 19–55 9.2 µg/m³ 4.1 24h 3
2026-07-04 60 26–79 17.0 µg/m³ 7.3 24h 3
2026-07-03 55 33–70 14.7 µg/m³ 6.7 24h 3
2026-07-02 36 19–60 8.8 µg/m³ 3.9 13h 4
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