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Air Quality History for Duluth, United States

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

56
Current AQI
Moderate Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

424h

PM2.5 Station

424h · 1 station

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 9 1–22 2.2 µg/m³ 2.5 22h 1
2026-07-20 17 4–32 4.1 µg/m³ 4.3 24h 1
2026-07-19 35 4–63 8.9 µg/m³ 9.4 22h 1
2026-07-18 16 5–57 4.0 µg/m³ 4.2 24h 1
2026-07-17 27 5–60 6.7 µg/m³ 7.0 24h 1
2026-07-16 39 15–64 10.0 µg/m³ 10.4 24h 1
2026-07-15 24 5–63 6.0 µg/m³ 6.2 24h 1
2026-07-14 5 2–7 1.2 µg/m³ 1.2 9h 1
2026-07-13 14 1–43 3.4 µg/m³ 3.9 16h 1
2026-07-12 20 5–37 4.8 µg/m³ 5.1 24h 1
2026-07-11 28 5–58 6.7 µg/m³ 6.9 24h 1
2026-07-10 38 5–64 9.6 µg/m³ 10.0 24h 1
2026-07-09 42 10–78 10.9 µg/m³ 11.5 22h 1
2026-07-08 46 22–99 12.1 µg/m³ 12.6 23h 1
2026-07-07 45 15–78 11.4 µg/m³ 11.8 22h 1
2026-07-06 34 4–69 8.9 µg/m³ 10.6 12h 1
2026-07-05 58 4–187 24.2 µg/m³ 24.7 24h 1
2026-07-04 72 23–106 22.4 µg/m³ 23.7 24h 1
2026-07-03 64 1–90 20.1 µg/m³ 20.7 24h 1
2026-07-02 59 4–82 17.5 µg/m³ 19.4 12h 1
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