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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.

21
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

460h

PM2.5 Station

460h · 101 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-07-22 20 20–21 4.9 µg/m³ 1.1 3h 101
2026-07-21 29 23–55 7.0 µg/m³ 4.9 24h 100
2026-07-20 22 17–56 5.2 µg/m³ 2.8 24h 94
2026-07-19 26 21–30 6.1 µg/m³ 4.3 24h 98
2026-07-18 29 23–57 7.0 µg/m³ 3.4 24h 98
2026-07-17 35 31–37 8.4 µg/m³ 8.7 24h 101
2026-07-16 33 20–37 7.9 µg/m³ 6.8 24h 94
2026-07-15 34 29–58 8.3 µg/m³ 5.9 24h 99
2026-07-14 32 29–37 7.7 µg/m³ 9.1 24h 97
2026-07-13 29 25–45 7.1 µg/m³ 5.4 24h 99
2026-07-12 25 21–50 6.0 µg/m³ 2.7 24h 94
2026-07-11 25 16–65 6.2 µg/m³ 1.8 24h 77
2026-07-10 36 27–43 8.6 µg/m³ 7.0 24h 93
2026-07-09 23 12–32 5.5 µg/m³ 3.0 24h 97
2026-07-08 26 23–28 6.1 µg/m³ 3.3 24h 102
2026-07-07 21 17–24 5.0 µg/m³ 2.5 24h 102
2026-07-06 18 15–20 4.2 µg/m³ 1.8 13h 94
2026-07-05 30 16–73 7.9 µg/m³ 6.2 24h 102
2026-07-04 22 18–25 5.2 µg/m³ 2.4 24h 102
2026-07-03 27 22–33 6.5 µg/m³ 3.8 24h 102
2026-07-02 33 29–50 7.9 µg/m³ 4.8 12h 85
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