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Air Quality History for San Ramon, United States

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

19
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

334h

PM2.5 Station

334h · 102 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-10-20 21 17–45 5.0 µg/m³ 5.4 20h 89
2026-10-19 23 20–28 5.5 µg/m³ 11.7 24h 102
2026-10-18 34 18–42 8.2 µg/m³ 20.3 24h 95
2026-10-17 30 25–36 7.3 µg/m³ 12.8 24h 105
2026-10-16 32 23–44 7.7 µg/m³ 12.3 24h 100
2026-10-15 28 24–35 6.7 µg/m³ 12.3 24h 108
2026-10-14 25 21–35 6.0 µg/m³ 11.2 24h 109
2026-10-13 25 18–30 6.0 µg/m³ 12.1 24h 109
2026-10-12 25 23–28 6.1 µg/m³ 10.5 24h 109
2026-10-11 28 25–32 6.8 µg/m³ 14.5 24h 109
2026-10-10 29 22–44 7.0 µg/m³ 14.3 24h 98
2026-10-09 37 31–56 8.9 µg/m³ 19.9 24h 101
2026-10-08 29 25–37 7.0 µg/m³ 11.5 24h 109
2026-10-07 26 23–30 6.2 µg/m³ 12.7 24h 106
2026-10-06 30 29–30 7.1 µg/m³ 9.5 2h 112
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