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Air Quality History for San Juan, United States

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

54
Current AQI
Moderate Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

463h

PM2.5 Station

463h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-06-09 41 11–55 10.1 µg/m³ 12h 2
2026-06-08 43 26–59 10.6 µg/m³ 23h 3
2026-06-07 46 25–73 11.6 µg/m³ 24h 2
2026-06-06 37 18–65 9.0 µg/m³ 23h 3
2026-06-05 38 23–58 9.4 µg/m³ 24h 2
2026-06-04 28 17–40 6.7 µg/m³ 23h 3
2026-06-03 34 12–52 8.0 µg/m³ 24h 2
2026-06-02 48 28–75 11.8 µg/m³ 24h 3
2026-06-01 43 19–60 10.5 µg/m³ 21h 2
2026-05-31 32 17–59 7.7 µg/m³ 23h 2
2026-05-30 34 9–64 8.3 µg/m³ 21h 2
2026-05-29 28 17–56 6.8 µg/m³ 22h 2
2026-05-28 31 13–58 7.6 µg/m³ 24h 2
2026-05-27 34 12–133 8.9 µg/m³ 24h 2
2026-05-26 33 20–54 7.9 µg/m³ 24h 2
2026-05-25 36 21–88 9.1 µg/m³ 23h 3
2026-05-24 33 15–49 8.0 µg/m³ 24h 2
2026-05-23 44 28–70 11.3 µg/m³ 22h 2
2026-05-22 38 26–59 9.2 µg/m³ 23h 3
2026-05-21 39 23–80 9.8 µg/m³ 24h 3
2026-05-20 46 18–125 12.7 µg/m³ 11h 2
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