Harwood Heights AQI History

Hourly air quality data for the past 24 hours in Harwood Heights, Illinois.

24-Hour Summary

Average AQI

Peak AQI

Best AQI

Hourly AQI Data

TimeAQICategoryPM2.5PM10
09:00 am————
08:00 am58Moderate12.822.4
07:00 am57Moderate12.221.4
06:00 am————
05:00 am————
04:00 am————
03:00 am58Moderate12.729.9
02:00 am————
01:00 am50Good9.029.7
12:00 am48Good8.629.0
11:00 pm42Good7.627.3
10:00 pm45Good8.133.6
09:00 pm500Hazardous9.139.7
08:00 pm51Moderate9.233.0
07:00 pm52Moderate9.630.2
06:00 pm49Good8.825.2
05:00 pm52Moderate9.724.9
04:00 pm51Moderate9.421.3
03:00 pm51Moderate9.220.7
02:00 pm51Moderate9.318.4
01:00 pm52Moderate9.415.3
12:00 pm44Good7.824.7
11:00 am43Good7.724.2
10:00 am44Good7.823.9
09:00 am43Good7.723.9
08:00 am43Good7.715.1
07:00 am44Good7.916.7
06:00 am500Hazardous9.017.7
05:00 am56Moderate11.720.5
04:00 am56Moderate11.722.5
03:00 am55Moderate11.223.8
02:00 am53Moderate10.028.1
01:00 am43Good7.723.1
12:00 am30Good5.419.5
11:00 pm34Good6.218.4
10:00 pm36Good6.422.4
09:00 pm35Good6.420.4
08:00 pm————
07:00 pm39Good7.022.0
06:00 pm38Good6.821.4
05:00 pm38Good6.918.9
04:00 pm41Good7.421.0
03:00 pm42Good7.520.0
02:00 pm43Good7.722.0
01:00 pm41Good7.420.2
12:00 pm39Good7.023.0
11:00 am36Good6.623.4
10:00 am36Good6.521.6
09:00 am35Good6.322.1
08:00 am35Good6.316.7
07:00 am36Good6.515.5
06:00 am41Good7.415.2
05:00 am52Moderate9.817.7
04:00 am52Moderate9.718.5
03:00 am43Good7.716.2
02:00 am51Moderate9.319.8
01:00 am42Good7.618.3
12:00 am30Good5.514.9
11:00 pm28Good5.117.1
10:00 pm30Good5.416.3
09:00 pm31Good5.614.9
08:00 pm37Good6.616.7
07:00 pm35Good6.213.7
06:00 pm36Good6.514.3
05:00 pm38Good6.813.5
04:00 pm40Good7.213.9
03:00 pm42Good7.515.6
02:00 pm40Good7.217.0
01:00 pm41Good7.415.7
12:00 pm43Good7.713.3
11:00 am41Good7.313.3
10:00 am38Good6.913.4
09:00 am36Good6.512.7
08:00 am36Good6.412.1
07:00 am41Good7.314.0
06:00 am42Good7.616.6
05:00 am52Moderate9.818.6
04:00 am52Moderate9.418.9
03:00 am52Moderate9.618.7
02:00 am53Moderate10.322.5
01:00 am52Moderate9.820.4
12:00 am46Good8.218.7
11:00 pm43Good7.819.2
10:00 pm44Good7.917.4
09:00 pm41Good7.316.4
08:00 pm40Good7.116.3
07:00 pm37Good6.614.3
06:00 pm35Good6.214.3
05:00 pm34Good6.014.4
04:00 pm34Good6.113.6
03:00 pm34Good6.015.9
02:00 pm34Good6.014.8
01:00 pm33Good6.015.6
12:00 pm33Good5.921.5
11:00 am35Good6.321.1
10:00 am32Good5.820.4
09:00 am33Good6.019.6
08:00 am52Moderate9.512.3
07:00 am33Good6.013.9
06:00 am32Good5.813.8
05:00 am43Good7.714.6
04:00 am36Good6.515.1
03:00 am38Good6.817.3
02:00 am39Good7.020.5
01:00 am34Good6.018.3
12:00 am31Good5.519.2
11:00 pm30Good5.318.2
10:00 pm30Good5.418.2
09:00 pm32Good5.718.2
08:00 pm32Good5.821.0
07:00 pm33Good5.920.3
06:00 pm37Good6.621.3
05:00 pm45Good8.124.2
04:00 pm52Moderate9.527.3
03:00 pm54Moderate11.025.0
02:00 pm56Moderate11.920.5
01:00 pm57Moderate12.621.4
12:00 pm59Moderate13.633.6
11:00 am63Moderate15.434.0
10:00 am74Moderate21.235.9
09:00 am75Moderate22.237.4
08:00 am73Moderate20.631.4
07:00 am69Moderate19.033.2
06:00 am64Moderate16.335.1
05:00 am66Moderate17.336.2
04:00 am63Moderate15.832.3
03:00 am59Moderate13.131.5
02:00 am53Moderate10.434.5
01:00 am49Good8.828.8
12:00 am51Moderate9.236.1
11:00 pm53Moderate10.439.5
10:00 pm54Moderate11.042.8
09:00 pm55Moderate11.041.5
08:00 pm52Moderate9.839.3
07:00 pm52Moderate9.626.6
06:00 pm54Moderate11.030.1
05:00 pm54Moderate10.639.5
04:00 pm55Moderate11.228.8
03:00 pm52Moderate9.821.2
02:00 pm39Good7.014.3
01:00 pm33Good6.013.9
12:00 pm24Good4.320.2
11:00 am22Good4.019.3
10:00 am23Good4.119.1
09:00 am25Good4.519.6
08:00 am27Good4.820.5
07:00 am30Good5.421.8
06:00 am35Good6.322.4
05:00 am500Hazardous9.124.7
04:00 am49Good8.824.2
03:00 am55Moderate11.024.4
02:00 am55Moderate11.024.4
01:00 am46Good8.318.7
12:00 am42Good7.618.1
11:00 pm45Good8.218.2
10:00 pm40Good7.118.7
09:00 pm43Good7.816.2
08:00 pm43Good7.815.7
07:00 pm41Good7.316.2
06:00 pm42Good7.517.7
05:00 pm37Good6.619.6
04:00 pm36Good6.514.9
03:00 pm37Good6.712.4
02:00 pm42Good7.513.9
01:00 pm35Good6.313.6
12:00 pm29Good5.316.3
11:00 am32Good5.715.9
10:00 am34Good6.217.3
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