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Air Quality History for Johnston, United States

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

25
Current AQI
Good CAMS model
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

245h

PM2.5 Station

245h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-06-09 18 18–18 4.3 µg/m³ 1h 1
2026-06-08 34 15–93 8.9 µg/m³ 18h 2
2026-06-07 37 15–85 9.2 µg/m³ 18h 1
2026-06-06 42 9–82 11.2 µg/m³ 19h 1
2026-06-05 36 19–97 9.1 µg/m³ 19h 1
2026-06-04 50 5–108 14.6 µg/m³ 19h 1
2026-06-03 43 15–89 11.8 µg/m³ 21h 1
2026-06-02 43 19–90 11.5 µg/m³ 18h 1
2026-06-01 38 9–67 9.5 µg/m³ 14h 1
2026-05-31 61 15–144 18.8 µg/m³ 16h 1
2026-05-30 43 10–71 11.1 µg/m³ 17h 1
2026-05-29 37 11–80 10.0 µg/m³ 19h 1
2026-05-28 48 24–80 12.6 µg/m³ 16h 1
2026-05-27 46 20–91 12.9 µg/m³ 14h 1
2026-05-26 43 11–85 11.7 µg/m³ 16h 1
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