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Air Quality History for Gaithersburg, United States

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

22
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

334h

PM2.5 Station

334h · 30 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-07-22 24 23–25 5.8 µg/m³ 2h 29
2026-07-21 53 27–76 14.5 µg/m³ 24h 28
2026-07-20 71 58–100 21.4 µg/m³ 24h 27
2026-07-19 73 36–288 27.8 µg/m³ 24h 30
2026-07-18 131 58–161 51.2 µg/m³ 24h 30
2026-07-17 168 60–215 100.8 µg/m³ 24h 32
2026-07-16 65 54–151 18.6 µg/m³ 24h 29
2026-07-15 51 42–68 12.7 µg/m³ 24h 30
2026-07-14 40 33–52 9.7 µg/m³ 24h 28
2026-07-13 36 22–44 8.6 µg/m³ 24h 29
2026-07-12 42 30–56 10.1 µg/m³ 24h 28
2026-07-11 43 22–54 10.3 µg/m³ 24h 22
2026-07-10 43 27–64 11.0 µg/m³ 24h 27
2026-07-09 35 25–41 8.3 µg/m³ 24h 28
2026-07-08 36 25–45 8.7 µg/m³ 20h 30
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