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Air Quality History for Simi Valley, United States

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

33
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

453h

PM2.5 Station

453h · 2 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-07-21 22 6–52 5.3 µg/m³ 5.7 22h 2
2026-07-20 52 24–68 13.8 µg/m³ 14.2 24h 2
2026-07-19 48 13–69 12.4 µg/m³ 12.7 24h 2
2026-07-18 52 29–69 13.6 µg/m³ 14.7 24h 2
2026-07-17 42 22–70 10.7 µg/m³ 11.0 24h 2
2026-07-16 32 11–55 7.7 µg/m³ 8.0 24h 2
2026-07-15 29 11–57 7.1 µg/m³ 7.1 24h 2
2026-07-14 24 8–44 5.8 µg/m³ 5.8 24h 2
2026-07-13 41 15–60 10.3 µg/m³ 10.1 24h 2
2026-07-12 29 14–47 6.9 µg/m³ 6.7 24h 2
2026-07-11 59 25–90 16.5 µg/m³ 16.0 24h 2
2026-07-10 54 10–82 15.0 µg/m³ 14.0 24h 2
2026-07-09 20 9–41 4.8 µg/m³ 4.6 24h 2
2026-07-08 16 5–38 3.9 µg/m³ 3.3 23h 2
2026-07-07 13 5–21 3.2 µg/m³ 2.7 22h 2
2026-07-06 16 4–32 3.9 µg/m³ 2.4 12h 5
2026-07-05 46 8–104 13.8 µg/m³ 12.2 24h 2
2026-07-04 24 9–41 5.8 µg/m³ 5.2 24h 2
2026-07-03 23 9–36 5.4 µg/m³ 4.6 24h 2
2026-07-02 26 13–39 6.1 µg/m³ 5.1 13h 5
2026-07-01 14 14–14 3.3 µg/m³ 2.2 1h 2
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