Air Quality History for Pacifica, United States
Historical PM2.5 and AQI trend from monitoring stations near Pacifica, United States.
12
Current AQI
Good Station
Good Station
Air Quality Index Station
375hPM2.5 Station
375h · 1 stationTemperature GFS model
80ptPrecipitation GFS model
mm/dayDaily Summary Station
| Date | AQI | Range | PM2.5 avg | PM10 avg | Hours | Stations |
|---|---|---|---|---|---|---|
| 2026-05-29 | 11 | 3–23 | 2.6 µg/m³ | 4.2 | 16h | 1 |
| 2026-05-28 | 10 | 3–15 | 2.3 µg/m³ | 3.7 | 13h | 1 |
| 2026-05-27 | 7 | 1–30 | 1.7 µg/m³ | 3.2 | 24h | 1 |
| 2026-05-26 | 13 | 1–27 | 2.8 µg/m³ | 3.8 | 14h | 1 |
| 2026-05-25 | 4 | 1–8 | 0.8 µg/m³ | 1.8 | 9h | 1 |
| 2026-05-24 | 4 | 1–9 | 0.8 µg/m³ | 1.4 | 5h | 1 |
| 2026-05-23 | 7 | 1–19 | 1.8 µg/m³ | 2.9 | 21h | 1 |
| 2026-05-22 | 11 | 2–39 | 2.7 µg/m³ | 4.1 | 18h | 1 |
| 2026-05-21 | 33 | 14–50 | 7.8 µg/m³ | 13.0 | 24h | 1 |
| 2026-05-20 | 28 | 11–52 | 6.6 µg/m³ | 11.4 | 24h | 1 |
| 2026-05-19 | 34 | 1–94 | 8.9 µg/m³ | 13.5 | 24h | 1 |
| 2026-05-18 | 10 | 2–20 | 2.3 µg/m³ | 4.1 | 6h | 1 |
| 2026-05-17 | 21 | 5–37 | 5.0 µg/m³ | 7.6 | 24h | 1 |
| 2026-05-16 | 24 | 11–36 | 5.8 µg/m³ | 8.9 | 24h | 1 |
| 2026-05-15 | 21 | 3–52 | 4.9 µg/m³ | 8.4 | 24h | 1 |
| 2026-05-14 | 14 | 2–31 | 3.3 µg/m³ | 5.5 | 23h | 1 |
| 2026-05-13 | 5 | 1–16 | 1.2 µg/m³ | 2.4 | 23h | 1 |
| 2026-05-12 | 10 | 1–24 | 2.2 µg/m³ | 3.2 | 11h | 1 |
| 2026-05-11 | 15 | 5–25 | 3.6 µg/m³ | 5.2 | 23h | 1 |
| 2026-05-10 | 12 | 1–21 | 2.8 µg/m³ | 4.1 | 23h | 1 |
| 2026-05-09 | 9 | 6–12 | 2.1 µg/m³ | 3.8 | 2h | 1 |