Air Quality History for Downey, United States
Historical PM2.5 and AQI trend from monitoring stations near Downey, United States.
37
Current AQI
Good Station
Good Station
Air Quality Index Station
448hPM2.5 Station
448h · 1 stationTemperature GFS model
80ptPrecipitation GFS model
mm/dayDaily Summary Station
| Date | AQI | Range | PM2.5 avg | PM10 avg | Hours | Stations |
|---|---|---|---|---|---|---|
| 2026-06-09 | 24 | 21–25 | 5.7 µg/m³ | 6.7 | 3h | 1 |
| 2026-06-08 | 40 | 29–55 | 9.6 µg/m³ | 10.5 | 24h | 1 |
| 2026-06-07 | 38 | 21–53 | 9.0 µg/m³ | 10.1 | 24h | 1 |
| 2026-06-06 | 56 | 41–68 | 14.7 µg/m³ | 16.5 | 24h | 1 |
| 2026-06-05 | 81 | 57–99 | 26.2 µg/m³ | 28.9 | 24h | 1 |
| 2026-06-04 | 64 | 38–80 | 18.4 µg/m³ | 20.0 | 24h | 1 |
| 2026-06-03 | 56 | 21–76 | 16.1 µg/m³ | 17.5 | 24h | 1 |
| 2026-06-02 | 58 | 38–72 | 15.8 µg/m³ | 17.5 | 24h | 1 |
| 2026-06-01 | 46 | 29–76 | 11.7 µg/m³ | 13.4 | 21h | 1 |
| 2026-05-31 | 38 | 17–57 | 9.1 µg/m³ | 9.7 | 24h | 1 |
| 2026-05-30 | 10 | 4–38 | 2.4 µg/m³ | 2.9 | 20h | 1 |
| 2026-05-29 | 5 | 4–8 | 1.2 µg/m³ | 1.4 | 12h | 1 |
| 2026-05-28 | 6 | 4–17 | 1.4 µg/m³ | 1.6 | 16h | 1 |
| 2026-05-27 | 8 | 4–17 | 2.0 µg/m³ | 2.7 | 22h | 1 |
| 2026-05-26 | 17 | 8–25 | 4.1 µg/m³ | 4.8 | 24h | 1 |
| 2026-05-25 | 23 | 12–42 | 5.5 µg/m³ | 6.1 | 24h | 1 |
| 2026-05-24 | 52 | 33–70 | 13.7 µg/m³ | 14.6 | 24h | 1 |
| 2026-05-23 | 56 | 33–80 | 14.8 µg/m³ | 16.5 | 24h | 1 |
| 2026-05-22 | 53 | 25–74 | 14.7 µg/m³ | 16.0 | 22h | 1 |
| 2026-05-21 | 51 | 25–76 | 13.3 µg/m³ | 14.9 | 24h | 1 |
| 2026-05-20 | 70 | 25–119 | 21.6 µg/m³ | 23.4 | 20h | 1 |