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Air Quality History for San Dimas, United States

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

58
Current AQI
Moderate Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

478h

PM2.5 Station

478h · 107 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-10-20 33 17–42 7.9 µg/m³ 4.8 21h 91
2026-10-19 29 21–36 6.9 µg/m³ 2.8 24h 106
2026-10-18 25 13–34 6.0 µg/m³ 1.5 24h 98
2026-10-17 25 15–35 6.1 µg/m³ 0.7 24h 106
2026-10-16 26 15–36 6.2 µg/m³ 0.7 24h 101
2026-10-15 26 16–36 6.3 µg/m³ 1.9 24h 106
2026-10-14 25 18–30 6.0 µg/m³ 1.6 24h 106
2026-10-13 23 18–26 5.5 µg/m³ 1.6 24h 105
2026-10-12 22 18–30 5.4 µg/m³ 1.5 24h 105
2026-10-11 31 28–34 7.4 µg/m³ 3.8 24h 106
2026-10-10 41 29–49 9.8 µg/m³ 5.7 24h 93
2026-10-09 39 25–48 9.4 µg/m³ 5.6 24h 97
2026-10-08 47 34–55 11.4 µg/m³ 5.1 24h 106
2026-10-07 40 23–70 9.7 µg/m³ 3.4 24h 103
2026-10-06 26 23–30 6.3 µg/m³ 2.0 24h 103
2026-10-05 30 19–38 7.1 µg/m³ 2.5 24h 107
2026-10-04 25 9–35 5.9 µg/m³ 1.3 24h 99
2026-10-03 33 18–45 7.9 µg/m³ 2.1 24h 104
2026-10-02 45 31–56 10.9 µg/m³ 5.0 24h 106
2026-10-01 50 38–63 12.8 µg/m³ 7.6 24h 106
2026-09-30 40 40–40 9.6 µg/m³ 8.7 1h 107
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