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Air Quality History for Decatur, United States

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

50
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

326h

PM2.5 Station

326h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-07-22 43 39–47 10.2 µg/m³ 3h 2
2026-07-21 50 8–100 13.9 µg/m³ 11h 1
2026-07-20 51 25–107 13.8 µg/m³ 15h 1
2026-07-19 46 9–99 12.5 µg/m³ 17h 1
2026-07-18 54 5–162 17.4 µg/m³ 17h 1
2026-07-17 57 23–189 20.3 µg/m³ 17h 1
2026-07-16 49 12–156 14.5 µg/m³ 17h 1
2026-07-15 34 10–76 8.6 µg/m³ 17h 1
2026-07-14 27 13–57 6.5 µg/m³ 16h 1
2026-07-13 29 13–53 7.0 µg/m³ 20h 1
2026-07-12 31 12–53 7.4 µg/m³ 15h 1
2026-07-11 30 17–52 7.1 µg/m³ 21h 1
2026-07-10 38 20–62 9.4 µg/m³ 17h 1
2026-07-09 38 13–52 9.1 µg/m³ 18h 1
2026-07-08 32 9–54 7.7 µg/m³ 19h 1
2026-07-07 32 18–51 7.6 µg/m³ 17h 1
2026-07-06 40 35–56 9.8 µg/m³ 9h 1
2026-07-05 46 23–75 11.7 µg/m³ 20h 1
2026-07-04 42 26–61 10.2 µg/m³ 17h 1
2026-07-03 45 20–71 11.7 µg/m³ 16h 1
2026-07-02 60 47–75 16.5 µg/m³ 7h 2
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