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Air Quality History for McHenry, United States

Historical PM2.5 and AQI trend from monitoring stations near McHenry, United States.

28
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

479h

PM2.5 Station

479h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-06-09 21 17–28 5.1 µg/m³ 11h 69
2026-06-08 43 32–54 10.5 µg/m³ 24h 84
2026-06-07 27 21–36 6.5 µg/m³ 24h 84
2026-06-06 42 25–53 10.0 µg/m³ 24h 81
2026-06-05 51 42–55 12.6 µg/m³ 24h 84
2026-06-04 38 29–48 9.0 µg/m³ 24h 85
2026-06-03 27 23–31 6.4 µg/m³ 24h 85
2026-06-02 22 21–25 5.3 µg/m³ 24h 85
2026-06-01 25 20–37 6.1 µg/m³ 24h 75
2026-05-31 23 20–29 5.5 µg/m³ 24h 84
2026-05-30 41 19–68 10.6 µg/m³ 24h 85
2026-05-29 25 17–33 6.0 µg/m³ 24h 84
2026-05-28 25 20–34 6.0 µg/m³ 24h 78
2026-05-27 42 27–59 10.4 µg/m³ 24h 85
2026-05-26 31 26–43 7.4 µg/m³ 24h 85
2026-05-25 48 30–73 12.8 µg/m³ 24h 85
2026-05-24 50 36–59 12.4 µg/m³ 24h 85
2026-05-23 26 21–35 6.3 µg/m³ 24h 84
2026-05-22 22 19–25 5.3 µg/m³ 24h 81
2026-05-21 20 14–35 4.9 µg/m³ 24h 84
2026-05-20 16 15–18 3.9 µg/m³ 12h 84
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