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Air Quality History for Walnut Creek, United States

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

25
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

336h

PM2.5 Station

336h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-06-09 16 12–21 3.9 µg/m³ 5.3 4h 53
2026-06-08 25 19–28 6.0 µg/m³ 3.7 24h 106
2026-06-07 29 26–41 6.9 µg/m³ 4.1 24h 105
2026-06-06 33 28–44 7.8 µg/m³ 6.8 24h 100
2026-06-05 40 36–41 9.5 µg/m³ 11.3 24h 105
2026-06-04 28 21–35 6.8 µg/m³ 5.5 24h 104
2026-06-03 31 27–35 7.4 µg/m³ 4.1 24h 104
2026-06-02 40 35–44 9.7 µg/m³ 8.2 24h 105
2026-06-01 38 28–45 9.1 µg/m³ 11.3 24h 94
2026-05-31 34 30–38 8.2 µg/m³ 8.9 24h 106
2026-05-30 25 16–32 5.9 µg/m³ 4.1 24h 106
2026-05-29 19 15–23 4.6 µg/m³ 4.2 24h 104
2026-05-28 24 15–60 5.8 µg/m³ 3.7 24h 97
2026-05-27 22 20–25 5.1 µg/m³ 3.2 24h 106
2026-05-26 21 15–28 5.1 µg/m³ 3.8 20h 106
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