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Air Quality History for Guelph, Canada

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

42
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

175h

PM2.5 Station

175h · 2 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-07-21 50 50–50 12.0 µg/m³ 1h 2
2026-07-20 46 25–91 13.2 µg/m³ 6h 2
2026-07-19 74 27–159 27.4 µg/m³ 4h 2
2026-07-18 130 70–181 65.2 µg/m³ 4h 2
2026-07-17 297 282–312 248.3 µg/m³ 2h 2
2026-07-14 59 50–65 16.2 µg/m³ 3h 2
2026-07-13 67 53–72 19.5 µg/m³ 8h 2
2026-07-12 64 55–70 18.1 µg/m³ 7h 2
2026-07-11 48 34–53 11.7 µg/m³ 13h 2
2026-07-10 25 17–36 5.9 µg/m³ 15h 2
2026-07-09 42 30–53 10.0 µg/m³ 13h 2
2026-07-08 25 2–42 6.0 µg/m³ 11h 2
2026-07-07 31 22–37 7.4 µg/m³ 6h 2
2026-07-06 38 23–46 9.0 µg/m³ 6h 2
2026-07-05 39 30–50 9.4 µg/m³ 20h 2
2026-07-04 31 25–42 7.5 µg/m³ 24h 2
2026-07-03 42 30–53 10.1 µg/m³ 24h 2
2026-07-02 62 57–65 17.3 µg/m³ 8h 2
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