Air Quality History for McHenry, United States
Historical PM2.5 and AQI trend from monitoring stations near McHenry, United States.
36
Current AQI
Good Station
Good Station
Air Quality Index Station
459hPM2.5 Station
459h · 1 stationTemperature GFS model
80ptPrecipitation GFS model
mm/dayDaily Summary Station
| Date | AQI | Range | PM2.5 avg | Hours | Stations |
|---|---|---|---|---|---|
| 2026-07-22 | 28 | 24–32 | 6.7 µg/m³ | 2h | 2 |
| 2026-07-21 | 60 | 29–97 | 17.5 µg/m³ | 24h | 78 |
| 2026-07-20 | 98 | 55–107 | 34.2 µg/m³ | 24h | 77 |
| 2026-07-19 | 109 | 63–160 | 39.8 µg/m³ | 24h | 80 |
| 2026-07-18 | 50 | 9–92 | 13.3 µg/m³ | 24h | 79 |
| 2026-07-17 | 225 | 74–348 | 170.5 µg/m³ | 24h | 84 |
| 2026-07-16 | 164 | 48–329 | 108.6 µg/m³ | 24h | 78 |
| 2026-07-15 | 51 | 48–60 | 12.5 µg/m³ | 24h | 80 |
| 2026-07-14 | 59 | 51–66 | 15.8 µg/m³ | 24h | 78 |
| 2026-07-13 | 60 | 46–64 | 16.3 µg/m³ | 24h | 80 |
| 2026-07-12 | 48 | 30–56 | 11.9 µg/m³ | 24h | 77 |
| 2026-07-11 | 36 | 23–45 | 8.6 µg/m³ | 24h | 64 |
| 2026-07-10 | 34 | 23–52 | 8.1 µg/m³ | 24h | 77 |
| 2026-07-09 | 50 | 36–53 | 12.1 µg/m³ | 24h | 81 |
| 2026-07-08 | 54 | 46–60 | 13.9 µg/m³ | 24h | 85 |
| 2026-07-07 | 41 | 33–48 | 9.8 µg/m³ | 24h | 84 |
| 2026-07-06 | 41 | 28–59 | 9.9 µg/m³ | 14h | 73 |
| 2026-07-05 | 74 | 57–134 | 22.6 µg/m³ | 24h | 85 |
| 2026-07-04 | 43 | 32–56 | 10.4 µg/m³ | 24h | 84 |
| 2026-07-03 | 34 | 23–50 | 8.3 µg/m³ | 24h | 83 |
| 2026-07-02 | 45 | 31–80 | 11.4 µg/m³ | 11h | 75 |