Air Quality History for San Juan, United States
Historical PM2.5 and AQI trend from monitoring stations near San Juan, United States.
46
Current AQI
Good Station
Good Station
Air Quality Index Station
270hPM2.5 Station
270h · 1 stationTemperature GFS model
56ptPrecipitation GFS model
mm/dayDaily Summary Station
| Date | AQI | Range | PM2.5 avg | Hours | Stations |
|---|---|---|---|---|---|
| 2026-06-09 | 48 | 31–62 | 12.1 µg/m³ | 7h | 1 |
| 2026-06-08 | 48 | 30–65 | 12.0 µg/m³ | 23h | 2 |
| 2026-06-07 | 53 | 2–83 | 14.2 µg/m³ | 23h | 1 |
| 2026-06-06 | 40 | 16–70 | 10.1 µg/m³ | 20h | 2 |
| 2026-06-05 | 30 | 14–58 | 7.2 µg/m³ | 22h | 1 |
| 2026-06-04 | 26 | 10–44 | 6.3 µg/m³ | 21h | 2 |
| 2026-06-03 | 28 | 6–52 | 6.8 µg/m³ | 21h | 1 |
| 2026-06-02 | 52 | 23–72 | 13.8 µg/m³ | 21h | 1 |
| 2026-06-01 | 46 | 6–78 | 11.7 µg/m³ | 17h | 1 |
| 2026-05-31 | 37 | 13–59 | 9.0 µg/m³ | 13h | 1 |
| 2026-05-30 | 39 | 11–62 | 9.7 µg/m³ | 11h | 1 |
| 2026-05-29 | 28 | 10–50 | 6.7 µg/m³ | 18h | 1 |
| 2026-05-28 | 35 | 12–66 | 8.8 µg/m³ | 22h | 1 |
| 2026-05-27 | 30 | 1–52 | 7.2 µg/m³ | 21h | 1 |
| 2026-05-26 | 41 | 27–60 | 10.0 µg/m³ | 10h | 2 |