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Air Quality History for Rancho Cucamonga, United States

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

45
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

458h

PM2.5 Station

458h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-07-22 4 4–4 1.0 µg/m³ 1.0 1h 1
2026-07-21 39 29–56 9.4 µg/m³ 7.1 24h 9
2026-07-20 44 30–68 11.0 µg/m³ 12.9 24h 9
2026-07-19 44 31–58 10.6 µg/m³ 13.8 24h 9
2026-07-18 35 23–52 8.5 µg/m³ 9.6 24h 10
2026-07-17 41 30–53 9.9 µg/m³ 13.6 24h 10
2026-07-16 37 29–60 8.9 µg/m³ 8.6 24h 10
2026-07-15 33 29–39 7.9 µg/m³ 8.5 24h 10
2026-07-14 38 26–47 9.0 µg/m³ 10.8 24h 9
2026-07-13 43 32–55 10.3 µg/m³ 14.9 24h 10
2026-07-12 38 23–47 9.1 µg/m³ 13.2 24h 10
2026-07-11 46 35–69 11.2 µg/m³ 16.6 24h 9
2026-07-10 47 36–63 11.6 µg/m³ 24.2 24h 10
2026-07-09 36 25–45 8.6 µg/m³ 12.2 24h 10
2026-07-08 30 25–35 7.2 µg/m³ 6.3 24h 11
2026-07-07 29 22–39 6.9 µg/m³ 6.5 24h 11
2026-07-06 31 12–41 7.3 µg/m³ 5.5 14h 9
2026-07-05 76 29–121 24.5 µg/m³ 46.6 24h 11
2026-07-04 35 26–44 8.4 µg/m³ 12.2 24h 12
2026-07-03 39 32–53 9.5 µg/m³ 14.4 24h 12
2026-07-02 48 29–56 11.8 µg/m³ 15.1 11h 11
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