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Air Quality History for Los Altos, United States

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

23
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

334h

PM2.5 Station

334h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-07-22 5 5–5 1.1 µg/m³ 1.1 1h 1
2026-07-21 29 22–58 7.0 µg/m³ 4.9 24h 100
2026-07-20 22 18–69 5.5 µg/m³ 2.8 24h 94
2026-07-19 26 20–31 6.1 µg/m³ 4.3 24h 98
2026-07-18 28 23–33 6.6 µg/m³ 3.4 24h 98
2026-07-17 35 31–38 8.4 µg/m³ 8.7 24h 101
2026-07-16 42 25–247 15.9 µg/m³ 6.8 24h 94
2026-07-15 35 29–60 8.4 µg/m³ 5.9 24h 98
2026-07-14 32 29–40 7.7 µg/m³ 9.1 24h 96
2026-07-13 29 26–44 7.1 µg/m³ 5.4 24h 98
2026-07-12 24 20–27 5.7 µg/m³ 2.7 24h 93
2026-07-11 22 10–40 5.4 µg/m³ 1.8 23h 80
2026-07-10 37 27–61 9.1 µg/m³ 7.0 24h 93
2026-07-09 23 17–32 5.6 µg/m³ 3.0 23h 101
2026-07-08 26 23–28 6.1 µg/m³ 3.3 23h 102
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