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Air Quality History for Diamond Bar, United States

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

26
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

477h

PM2.5 Station

477h · 108 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-09-05 33 29–42 7.8 µg/m³ 4.9 16h 109
2026-09-04 30 24–35 7.1 µg/m³ 3.6 24h 109
2026-09-03 37 28–54 8.9 µg/m³ 5.3 24h 108
2026-09-02 34 31–39 8.2 µg/m³ 4.9 24h 109
2026-09-01 40 35–49 9.5 µg/m³ 5.7 24h 104
2026-08-31 50 45–55 12.1 µg/m³ 9.5 24h 108
2026-08-30 54 52–55 13.2 µg/m³ 10.7 24h 108
2026-08-29 45 37–52 10.8 µg/m³ 6.5 24h 108
2026-08-28 45 41–54 10.9 µg/m³ 8.0 24h 109
2026-08-27 42 40–56 10.1 µg/m³ 6.4 24h 110
2026-08-26 41 32–51 9.7 µg/m³ 6.5 24h 110
2026-08-25 39 35–45 9.3 µg/m³ 5.4 24h 110
2026-08-24 41 35–48 9.9 µg/m³ 4.3 24h 108
2026-08-23 40 36–44 9.6 µg/m³ 5.2 24h 108
2026-08-22 40 35–47 9.7 µg/m³ 6.6 24h 109
2026-08-21 47 40–54 11.4 µg/m³ 8.9 24h 109
2026-08-20 50 43–57 12.4 µg/m³ 8.6 24h 107
2026-08-19 44 40–70 10.7 µg/m³ 5.9 24h 105
2026-08-18 42 19–60 10.2 µg/m³ 5.2 24h 99
2026-08-17 40 36–51 9.6 µg/m³ 5.9 24h 103
2026-08-16 39 38–40 9.4 µg/m³ 6.5 5h 109
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