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Air Quality History for San Jose, United States

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

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

Air Quality Index Station

478h

PM2.5 Station

478h · 80 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-05-30 17 15–20 4.0 µg/m³ 6h 82
2026-05-29 19 15–22 4.5 µg/m³ 24h 82
2026-05-28 25 18–58 6.1 µg/m³ 24h 75
2026-05-27 22 20–26 5.2 µg/m³ 24h 82
2026-05-26 22 17–27 5.2 µg/m³ 24h 83
2026-05-25 19 15–23 4.6 µg/m³ 24h 82
2026-05-24 23 18–28 5.4 µg/m³ 24h 83
2026-05-23 26 24–30 6.3 µg/m³ 24h 83
2026-05-22 32 26–60 7.7 µg/m³ 24h 79
2026-05-21 40 32–47 9.7 µg/m³ 24h 83
2026-05-20 36 26–40 8.5 µg/m³ 24h 83
2026-05-19 28 19–32 6.8 µg/m³ 24h 82
2026-05-18 22 17–56 5.3 µg/m³ 24h 82
2026-05-17 37 29–42 8.9 µg/m³ 24h 81
2026-05-16 37 31–42 8.8 µg/m³ 24h 80
2026-05-15 31 28–34 7.6 µg/m³ 24h 81
2026-05-14 26 23–29 6.3 µg/m³ 24h 82
2026-05-13 24 20–30 5.7 µg/m³ 24h 81
2026-05-12 26 23–32 6.2 µg/m³ 24h 82
2026-05-11 32 25–56 7.8 µg/m³ 24h 81
2026-05-10 24 22–29 5.9 µg/m³ 16h 81
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