Air Quality History for SeaTac, United States
Historical PM2.5 and AQI trend from monitoring stations near SeaTac, United States.
48
Current AQI
Good Station
Good Station
Air Quality Index Station
460hPM2.5 Station
460h · 15 stationsTemperature GFS model
80ptPrecipitation GFS model
mm/dayDaily Summary Station
| Date | AQI | Range | PM2.5 avg | PM10 avg | Hours | Stations |
|---|---|---|---|---|---|---|
| 2026-07-21 | 49 | 34–64 | 12.0 µg/m³ | 10.5 | 24h | 4 |
| 2026-07-20 | 18 | 13–35 | 4.4 µg/m³ | 3.9 | 24h | 3 |
| 2026-07-19 | 20 | 14–34 | 4.9 µg/m³ | 4.5 | 24h | 3 |
| 2026-07-18 | 20 | 11–42 | 4.7 µg/m³ | 3.8 | 24h | 3 |
| 2026-07-17 | 22 | 9–53 | 5.2 µg/m³ | 5.0 | 24h | 3 |
| 2026-07-16 | 32 | 19–54 | 7.6 µg/m³ | 7.2 | 24h | 3 |
| 2026-07-15 | 28 | 15–44 | 6.8 µg/m³ | 6.1 | 24h | 3 |
| 2026-07-14 | 12 | 5–25 | 2.8 µg/m³ | 2.4 | 24h | 3 |
| 2026-07-13 | 8 | 3–13 | 1.9 µg/m³ | 1.8 | 24h | 3 |
| 2026-07-12 | 5 | 3–8 | 1.2 µg/m³ | 0.3 | 24h | 2 |
| 2026-07-11 | 7 | 2–12 | 1.7 µg/m³ | 1.6 | 24h | 3 |
| 2026-07-10 | 10 | 4–16 | 2.4 µg/m³ | 2.3 | 24h | 3 |
| 2026-07-09 | 16 | 8–26 | 3.8 µg/m³ | 3.5 | 24h | 3 |
| 2026-07-08 | 11 | 8–25 | 2.8 µg/m³ | 0.8 | 24h | 4 |
| 2026-07-07 | 32 | 17–55 | 7.8 µg/m³ | 0.4 | 24h | 6 |
| 2026-07-06 | 22 | 10–46 | 5.2 µg/m³ | 2.3 | 14h | 5 |
| 2026-07-05 | 33 | 8–96 | 9.5 µg/m³ | 9.3 | 24h | 3 |
| 2026-07-04 | 8 | 4–19 | 2.0 µg/m³ | 1.7 | 24h | 3 |
| 2026-07-03 | 5 | 2–15 | 1.2 µg/m³ | 0.5 | 24h | 3 |
| 2026-07-02 | 12 | 7–17 | 2.8 µg/m³ | 2.0 | 14h | 2 |