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Air Quality History for Hayward, United States

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

68
Current AQI
Moderate CAMS model
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

334h

PM2.5 Station

334h · 105 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-08-08 34 33–35 8.1 µg/m³ 11.2 4h 102
2026-08-07 33 22–44 7.9 µg/m³ 5.5 24h 102
2026-08-06 34 28–59 8.2 µg/m³ 5.1 24h 98
2026-08-05 37 33–41 8.8 µg/m³ 7.0 24h 96
2026-08-04 40 33–47 9.6 µg/m³ 7.9 24h 99
2026-08-03 46 35–54 11.0 µg/m³ 15.9 24h 95
2026-08-02 34 30–40 8.3 µg/m³ 9.9 24h 101
2026-08-01 30 25–41 7.2 µg/m³ 5.2 24h 101
2026-07-31 38 30–60 9.3 µg/m³ 7.7 24h 101
2026-07-30 31 28–35 7.4 µg/m³ 6.0 24h 101
2026-07-29 23 19–26 5.5 µg/m³ 3.1 24h 101
2026-07-28 29 25–53 6.9 µg/m³ 7.5 24h 101
2026-07-27 19 17–24 4.6 µg/m³ 1.8 24h 112
2026-07-26 19 16–24 4.4 µg/m³ 1.7 24h 111
2026-07-25 27 24–29 6.4 µg/m³ 4.6 18h 110
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