Home › United States › San Juan › History

Air Quality History for San Juan, United States

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

44
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

311h

PM2.5 Station

311h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-06-09 38 18–54 9.0 µg/m³ 12h 2
2026-06-08 44 24–59 10.8 µg/m³ 23h 2
2026-06-07 49 30–78 12.6 µg/m³ 21h 2
2026-06-06 43 23–70 10.6 µg/m³ 23h 2
2026-06-05 37 18–58 9.1 µg/m³ 24h 2
2026-06-04 25 8–37 5.9 µg/m³ 23h 2
2026-06-03 38 13–96 9.4 µg/m³ 24h 2
2026-06-02 50 15–68 13.0 µg/m³ 24h 2
2026-06-01 42 11–68 10.7 µg/m³ 21h 2
2026-05-31 35 12–75 8.9 µg/m³ 20h 1
2026-05-30 33 12–68 8.3 µg/m³ 18h 1
2026-05-29 27 4–63 6.6 µg/m³ 22h 2
2026-05-28 31 12–56 7.6 µg/m³ 23h 2
2026-05-27 35 10–91 8.9 µg/m³ 24h 2
2026-05-26 31 11–48 7.5 µg/m³ 9h 2
Back to San Juan Air Quality