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Air Quality History for Rockville, United States

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

36
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

336h

PM2.5 Station

336h · 4 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-07-21 53 30–74 14.5 µg/m³ 23h 29
2026-07-20 67 48–80 19.9 µg/m³ 24h 30
2026-07-19 63 37–91 18.4 µg/m³ 24h 31
2026-07-18 131 59–157 50.2 µg/m³ 24h 32
2026-07-17 166 56–217 96.7 µg/m³ 24h 33
2026-07-16 78 54–183 28.1 µg/m³ 24h 32
2026-07-15 51 34–80 12.9 µg/m³ 24h 33
2026-07-14 40 33–52 9.5 µg/m³ 24h 30
2026-07-13 37 29–46 8.8 µg/m³ 24h 31
2026-07-12 42 29–55 10.1 µg/m³ 24h 30
2026-07-11 43 28–50 10.3 µg/m³ 24h 26
2026-07-10 44 28–76 11.4 µg/m³ 24h 29
2026-07-09 35 26–42 8.3 µg/m³ 24h 31
2026-07-08 38 26–51 9.2 µg/m³ 24h 34
2026-07-07 52 52–52 12.8 µg/m³ 1h 36
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