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Air Quality History for Crystal Lake, United States

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

26
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

477h

PM2.5 Station

477h · 83 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-10-21 53 53–53 12.9 µg/m³ 1h 83
2026-10-20 51 18–73 13.5 µg/m³ 24h 74
2026-10-19 29 22–45 6.8 µg/m³ 24h 84
2026-10-18 24 18–38 5.7 µg/m³ 24h 78
2026-10-17 16 13–25 3.9 µg/m³ 24h 84
2026-10-16 19 11–38 4.5 µg/m³ 24h 80
2026-10-15 24 14–40 5.9 µg/m³ 24h 84
2026-10-14 38 18–53 9.1 µg/m³ 24h 85
2026-10-13 34 24–48 8.2 µg/m³ 24h 84
2026-10-12 43 32–56 10.5 µg/m³ 24h 85
2026-10-11 32 29–35 7.6 µg/m³ 24h 84
2026-10-10 30 24–48 7.3 µg/m³ 24h 73
2026-10-09 35 25–46 8.5 µg/m³ 24h 75
2026-10-08 24 19–33 5.8 µg/m³ 24h 82
2026-10-07 26 23–29 6.2 µg/m³ 24h 79
2026-10-06 24 20–30 5.7 µg/m³ 24h 79
2026-10-05 26 19–34 6.3 µg/m³ 24h 82
2026-10-04 27 19–40 6.4 µg/m³ 24h 75
2026-10-03 23 17–33 5.4 µg/m³ 24h 80
2026-10-02 17 15–19 4.0 µg/m³ 24h 82
2026-10-01 55 20–62 14.9 µg/m³ 20h 82
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