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Air Quality History for Cupertino, United States

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

12
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
2026-05-30 13 2–18 3.3 µg/m³ 1.9 9h 51
2026-05-29 18 14–22 4.4 µg/m³ 4.2 24h 66
2026-05-28 26 16–56 6.2 µg/m³ 3.7 24h 61
2026-05-27 21 19–25 5.1 µg/m³ 3.2 24h 67
2026-05-26 21 16–26 5.1 µg/m³ 3.8 24h 68
2026-05-25 19 15–23 4.5 µg/m³ 1.8 24h 66
2026-05-24 22 18–28 5.3 µg/m³ 1.4 24h 67
2026-05-23 25 23–28 6.1 µg/m³ 2.9 24h 67
2026-05-22 30 25–46 7.3 µg/m³ 4.1 24h 65
2026-05-21 40 32–47 9.5 µg/m³ 13.0 24h 67
2026-05-20 34 25–41 8.3 µg/m³ 11.4 24h 67
2026-05-19 27 20–32 6.4 µg/m³ 13.5 24h 66
2026-05-18 22 16–61 5.3 µg/m³ 4.1 24h 66
2026-05-17 37 28–41 8.8 µg/m³ 7.6 24h 66
2026-05-16 34 26–39 8.3 µg/m³ 7.2 15h 62
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