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Air Quality History for Johnstown, United States

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

30
Current AQI
Good CAMS model
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

334h

PM2.5 Station

334h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-08-08 27 18–35 6.5 µg/m³ 5h 2
2026-08-07 30 15–55 7.1 µg/m³ 19h 2
2026-08-06 43 9–83 11.7 µg/m³ 14h 2
2026-08-05 30 5–59 7.3 µg/m³ 13h 1
2026-08-04 44 7–192 15.9 µg/m³ 20h 2
2026-08-03 26 7–46 6.2 µg/m³ 15h 2
2026-08-02 36 23–50 8.7 µg/m³ 22h 2
2026-08-01 40 18–68 9.7 µg/m³ 23h 2
2026-07-31 39 14–60 9.6 µg/m³ 17h 2
2026-07-30 28 8–54 6.6 µg/m³ 15h 2
2026-07-29 34 10–56 8.2 µg/m³ 18h 2
2026-07-28 41 7–81 10.4 µg/m³ 20h 2
2026-07-27 45 24–155 12.4 µg/m³ 18h 2
2026-07-26 39 25–58 9.5 µg/m³ 19h 2
2026-07-25 29 5–50 6.9 µg/m³ 13h 2
2026-07-24 32 13–70 8.1 µg/m³ 16h 1
2026-07-23 34 7–65 8.7 µg/m³ 13h 1
2026-07-22 28 13–55 6.7 µg/m³ 15h 2
2026-07-21 44 6–95 11.9 µg/m³ 13h 2
2026-07-20 57 12–129 17.2 µg/m³ 16h 2
2026-07-19 69 39–157 21.7 µg/m³ 10h 2
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