Concord AQI History

Hourly air quality data for the past 24 hours in Concord, California.

24-Hour Summary

Average AQI

Peak AQI

Best AQI

Hourly AQI Data

TimeAQICategoryPM2.5PM10
12:00 am55Moderate11.115.8
01:00 am54Moderate10.614.8
02:00 am52Moderate9.813.2
03:00 am52Moderate9.412.8
04:00 am49Good8.811.9
05:00 am41Good7.49.3
06:00 am40Good7.29.0
07:00 am41Good7.38.8
08:00 am39Good7.18.6
09:00 am36Good6.58.1
10:00 am37Good6.68.6
11:00 am37Good6.79.2
12:00 pm31Good5.68.1
01:00 pm28Good5.07.5
02:00 pm26Good4.77.5
03:00 pm27Good4.99.5
04:00 pm32Good5.713.9
05:00 pm21Good3.77.4
06:00 pm24Good4.310.5
07:00 pm28Good5.013.1
08:00 pm32Good5.713.3
09:00 pm39Good7.012.9
10:00 pm46Good8.213.4
11:00 pm51Moderate9.113.6
12:00 am53Moderate10.414.4
01:00 am55Moderate11.114.4
02:00 am54Moderate10.813.7
03:00 am53Moderate10.413.2
04:00 am53Moderate10.112.7
05:00 am53Moderate10.111.6
06:00 am53Moderate10.111.6
07:00 am47Good8.510.4
08:00 am41Good7.39.8
09:00 am37Good6.68.9
10:00 am32Good5.87.9
11:00 am29Good5.27.1
12:00 pm27Good4.86.6
01:00 pm26Good4.66.4
02:00 pm26Good4.66.3
03:00 pm27Good4.86.5
04:00 pm28Good5.06.9
05:00 pm20Good3.64.8
06:00 pm24Good4.35.6
07:00 pm27Good4.96.5
08:00 pm29Good5.36.9
09:00 pm31Good5.57.2
10:00 pm32Good5.77.5
11:00 pm34Good6.28.1
12:00 am37Good6.78.8
01:00 am39Good7.09.4
02:00 am41Good7.39.7
03:00 am42Good7.510.0
04:00 am44Good7.910.4
05:00 am44Good8.010.0
06:00 am46Good8.310.0
07:00 am52Moderate9.812.9
08:00 am53Moderate10.013.3
09:00 am53Moderate10.414.0
10:00 am55Moderate11.415.3
11:00 am56Moderate12.016.3
12:00 pm58Moderate12.717.2
01:00 pm58Moderate12.617.1
02:00 pm56Moderate12.016.4
03:00 pm55Moderate11.015.1
04:00 pm53Moderate10.214.1
05:00 pm53Moderate10.314.0
06:00 pm53Moderate10.113.9
07:00 pm53Moderate10.314.5
08:00 pm55Moderate11.115.8
09:00 pm56Moderate12.016.9
10:00 pm56Moderate11.715.8
11:00 pm55Moderate11.514.8
12:00 am55Moderate11.013.6
01:00 am54Moderate10.612.5
02:00 am54Moderate10.512.2
03:00 am54Moderate10.712.2
04:00 am55Moderate11.012.5
05:00 am56Moderate12.013.2
06:00 am57Moderate12.313.5
07:00 am57Moderate12.113.1
08:00 am55Moderate11.013.3
09:00 am54Moderate10.713.7
10:00 am55Moderate11.214.6
11:00 am56Moderate12.015.8
12:00 pm58Moderate12.716.9
01:00 pm58Moderate13.017.3
02:00 pm58Moderate12.717.2
03:00 pm57Moderate12.216.6
04:00 pm55Moderate11.515.7
05:00 pm52Moderate9.612.9
06:00 pm53Moderate10.314.0
07:00 pm54Moderate10.714.6
08:00 pm55Moderate11.415.5
09:00 pm56Moderate12.016.1
10:00 pm58Moderate12.816.8
11:00 pm59Moderate13.216.7
12:00 am59Moderate13.316.4
01:00 am59Moderate13.315.9
02:00 am59Moderate13.515.6
03:00 am59Moderate13.615.4
04:00 am60Moderate14.116.1
05:00 am60Moderate13.915.4
06:00 am61Moderate14.616.0
07:00 am61Moderate14.515.8
08:00 am60Moderate13.916.8
09:00 am60Moderate13.917.8
10:00 am60Moderate14.118.3
11:00 am62Moderate14.819.4
12:00 pm63Moderate15.320.4
01:00 pm63Moderate15.821.2
02:00 pm63Moderate15.520.9
03:00 pm62Moderate14.820.0
04:00 pm60Moderate13.818.6
05:00 pm65Moderate16.622.4
06:00 pm63Moderate15.721.3
07:00 pm62Moderate14.820.1
08:00 pm61Moderate14.319.6
09:00 pm61Moderate14.419.7
10:00 pm63Moderate15.320.8
11:00 pm64Moderate16.121.8
12:00 am63Moderate15.520.7
01:00 am62Moderate15.220.2
02:00 am62Moderate15.020.0
03:00 am61Moderate14.719.7
04:00 am60Moderate13.918.5
05:00 am59Moderate13.217.6
06:00 am58Moderate12.716.8
07:00 am57Moderate12.116.1
08:00 am56Moderate12.016.5
09:00 am57Moderate12.517.6
10:00 am58Moderate12.818.1
11:00 am60Moderate13.819.3
12:00 pm61Moderate14.420.3
01:00 pm61Moderate14.620.5
02:00 pm61Moderate14.320.0
03:00 pm59Moderate13.619.1
04:00 pm58Moderate13.018.3
05:00 pm64Moderate16.123.0
06:00 pm65Moderate16.723.9
07:00 pm66Moderate16.924.2
08:00 pm66Moderate17.124.3
09:00 pm63Moderate15.822.0
10:00 pm63Moderate15.521.4
11:00 pm62Moderate15.120.5
12:00 am61Moderate14.619.4
01:00 am61Moderate14.319.0
02:00 am61Moderate14.319.2
03:00 am59Moderate13.217.5
04:00 am58Moderate13.017.6
05:00 am56Moderate11.815.3
06:00 am55Moderate11.214.3
07:00 am56Moderate12.015.9
08:00 am57Moderate12.416.6
09:00 am58Moderate13.017.5
10:00 am59Moderate13.518.4
11:00 am61Moderate14.219.5
12:00 pm62Moderate14.820.4
01:00 pm61Moderate14.620.1
02:00 pm59Moderate13.218.3
03:00 pm55Moderate11.515.9
04:00 pm52Moderate9.713.5
05:00 pm47Good8.411.6
06:00 pm42Good7.610.7
07:00 pm41Good7.310.4
08:00 pm41Good7.310.4
09:00 pm39Good7.110.1
10:00 pm39Good7.09.7
11:00 pm36Good6.58.8
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