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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.

73
Current AQI
Moderate Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

335h

PM2.5 Station

335h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-07-22 3 3–3 0.7 µg/m³ 0.8 1h 2
2026-07-21 35 23–40 8.3 µg/m³ 4.0 24h 102
2026-07-20 46 25–53 11.1 µg/m³ 7.1 24h 98
2026-07-19 46 20–53 11.1 µg/m³ 7.9 24h 103
2026-07-18 39 20–45 9.4 µg/m³ 5.4 24h 103
2026-07-17 44 35–53 10.6 µg/m³ 9.5 24h 107
2026-07-16 40 36–46 9.7 µg/m³ 5.6 24h 100
2026-07-15 38 20–45 9.1 µg/m³ 5.3 24h 104
2026-07-14 38 33–43 9.2 µg/m³ 6.1 24h 100
2026-07-13 44 36–52 10.7 µg/m³ 8.1 24h 104
2026-07-12 40 21–45 9.6 µg/m³ 7.9 24h 99
2026-07-11 48 36–58 12.0 µg/m³ 10.6 24h 82
2026-07-10 57 47–65 15.0 µg/m³ 16.3 24h 99
2026-07-09 44 32–56 10.7 µg/m³ 9.0 23h 108
2026-07-08 31 26–38 7.3 µg/m³ 4.1 23h 107
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