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Air Quality History for Ashburn, United States

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

40
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

456h

PM2.5 Station

456h · 29 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-07-21 52 28–77 14.3 µg/m³ 24h 28
2026-07-20 68 59–84 20.4 µg/m³ 24h 28
2026-07-19 63 36–88 18.4 µg/m³ 24h 30
2026-07-18 130 59–160 50.5 µg/m³ 24h 31
2026-07-17 169 57–221 101.0 µg/m³ 24h 32
2026-07-16 83 53–273 33.6 µg/m³ 24h 30
2026-07-15 52 44–81 13.4 µg/m³ 24h 31
2026-07-14 40 32–52 9.6 µg/m³ 24h 28
2026-07-13 37 30–47 8.9 µg/m³ 24h 29
2026-07-12 42 30–50 10.0 µg/m³ 24h 28
2026-07-11 42 23–51 10.1 µg/m³ 24h 23
2026-07-10 45 28–73 11.6 µg/m³ 24h 27
2026-07-09 35 25–43 8.4 µg/m³ 24h 29
2026-07-08 38 27–52 9.1 µg/m³ 24h 31
2026-07-07 50 34–106 12.8 µg/m³ 24h 33
2026-07-06 48 36–57 11.7 µg/m³ 12h 34
2026-07-05 100 54–157 34.9 µg/m³ 24h 33
2026-07-04 54 39–66 14.1 µg/m³ 24h 32
2026-07-03 55 50–60 14.3 µg/m³ 24h 35
2026-07-02 56 52–69 14.3 µg/m³ 12h 29
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