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Air Quality History for Katy, United States

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

27
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

335h

PM2.5 Station

335h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-06-09 30 21–39 7.2 µg/m³ 34.5 4h 21
2026-06-08 34 28–40 8.2 µg/m³ 31.0 24h 39
2026-06-07 34 24–44 8.3 µg/m³ 30.3 24h 39
2026-06-06 18 14–31 4.3 µg/m³ 14.0 24h 38
2026-06-05 23 18–29 5.6 µg/m³ 13.7 24h 40
2026-06-04 31 20–42 7.5 µg/m³ 16.3 24h 40
2026-06-03 26 19–34 6.2 µg/m³ 16.1 24h 39
2026-06-02 26 22–32 6.2 µg/m³ 20.7 24h 40
2026-06-01 27 12–32 6.4 µg/m³ 22.2 23h 37
2026-05-31 22 18–33 5.3 µg/m³ 12.9 24h 40
2026-05-30 33 25–40 7.8 µg/m³ 18.2 24h 40
2026-05-29 28 18–38 6.6 µg/m³ 16.9 24h 40
2026-05-28 36 23–58 8.8 µg/m³ 14.5 24h 37
2026-05-27 20 11–25 4.8 µg/m³ 11.1 24h 39
2026-05-26 22 19–29 5.3 µg/m³ 17.4 20h 40
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