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Air Quality History for Duluth, United States

Historical PM2.5 and AQI trend from monitoring stations near Duluth, United States.

31
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

322h

PM2.5 Station

322h · 3 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-07-22 25 21–29 6.0 µg/m³ 3h 4
2026-07-21 47 27–68 12.0 µg/m³ 24h 4
2026-07-20 72 59–102 22.2 µg/m³ 24h 4
2026-07-19 87 58–137 28.7 µg/m³ 24h 4
2026-07-18 89 51–162 30.1 µg/m³ 23h 4
2026-07-17 218 151–436 159.2 µg/m³ 24h 4
2026-07-16 100 22–302 54.4 µg/m³ 23h 2
2026-07-15 52 22–159 15.4 µg/m³ 23h 2
2026-07-14 42 24–95 10.6 µg/m³ 23h 2
2026-07-13 32 5–45 7.8 µg/m³ 22h 2
2026-07-12 35 18–49 8.4 µg/m³ 21h 2
2026-07-11 37 17–51 8.9 µg/m³ 22h 3
2026-07-10 36 16–54 8.8 µg/m³ 22h 2
2026-07-09 34 22–56 8.3 µg/m³ 23h 3
2026-07-08 34 20–49 8.2 µg/m³ 21h 2
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