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Air Quality History for Castro Valley, United States

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

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

Air Quality Index Station

480h

PM2.5 Station

480h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-06-09 18 2–23 4.3 µg/m³ 4.2 12h 94
2026-06-08 25 19–28 5.9 µg/m³ 3.7 24h 113
2026-06-07 28 25–30 6.6 µg/m³ 4.1 24h 112
2026-06-06 32 26–36 7.6 µg/m³ 6.8 24h 106
2026-06-05 39 35–42 9.4 µg/m³ 11.3 24h 111
2026-06-04 28 20–35 6.6 µg/m³ 5.5 24h 111
2026-06-03 31 28–35 7.4 µg/m³ 4.1 24h 110
2026-06-02 40 35–44 9.6 µg/m³ 8.2 24h 112
2026-06-01 37 27–44 9.0 µg/m³ 11.3 24h 99
2026-05-31 33 29–35 8.0 µg/m³ 8.9 24h 113
2026-05-30 24 14–32 5.9 µg/m³ 4.1 24h 111
2026-05-29 19 15–22 4.5 µg/m³ 4.2 24h 110
2026-05-28 24 15–45 5.7 µg/m³ 3.7 24h 101
2026-05-27 21 19–28 5.1 µg/m³ 3.2 24h 110
2026-05-26 22 16–28 5.3 µg/m³ 3.8 24h 112
2026-05-25 18 15–23 4.4 µg/m³ 1.8 24h 111
2026-05-24 21 18–24 5.0 µg/m³ 1.4 24h 112
2026-05-23 25 23–29 6.1 µg/m³ 2.9 24h 114
2026-05-22 31 27–41 7.4 µg/m³ 4.1 24h 109
2026-05-21 40 32–48 9.6 µg/m³ 13.0 24h 112
2026-05-20 38 32–42 9.2 µg/m³ 9.4 12h 111
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