Air Quality History for Highlands Ranch, United States
Historical PM2.5 and AQI trend from monitoring stations near Highlands Ranch, United States.
17
Current AQI
Good Station
Good Station
Air Quality Index Station
46hPM2.5 Station
46h · 1 stationTemperature GFS model
56ptPrecipitation GFS model
mm/dayDaily Summary Station
| Date | AQI | Range | PM2.5 avg | PM10 avg | Hours | Stations |
|---|---|---|---|---|---|---|
| 2026-09-03 | 46 | 4–87 | 15.2 µg/m³ | 15.7 | 2h | 1 |
| 2026-09-02 | 3 | 1–5 | 0.8 µg/m³ | 1.2 | 5h | 1 |
| 2026-09-01 | 4 | 4–4 | 1.0 µg/m³ | 1.0 | 1h | 1 |
| 2026-08-31 | 49 | 5–93 | 16.7 µg/m³ | 18.8 | 2h | 1 |
| 2026-08-30 | 160 | 160–160 | 73.2 µg/m³ | 79.7 | 1h | 1 |
| 2026-08-29 | 16 | 1–37 | 3.8 µg/m³ | 4.1 | 3h | 1 |
| 2026-08-28 | 5 | 3–8 | 1.3 µg/m³ | 1.5 | 9h | 1 |
| 2026-08-27 | 11 | 4–18 | 2.6 µg/m³ | 2.7 | 10h | 1 |
| 2026-08-26 | 5 | 2–11 | 1.1 µg/m³ | 1.5 | 7h | 1 |
| 2026-08-25 | 5 | 4–6 | 1.2 µg/m³ | 1.8 | 2h | 1 |
| 2026-08-24 | 6 | 6–6 | 1.5 µg/m³ | 1.9 | 1h | 1 |
| 2026-08-23 | 16 | 4–29 | 4.0 µg/m³ | 4.2 | 2h | 1 |