Williston AQI History

Hourly air quality data for the past 24 hours in Williston, North Dakota.

24-Hour Summary

Average AQI

Peak AQI

Best AQI

Hourly AQI Data

TimeAQICategoryPM2.5PM10
03:00 am32Good5.87.6
04:00 am33Good6.07.5
05:00 am33Good5.97.2
06:00 am32Good5.86.9
07:00 am38Good6.97.9
08:00 am36Good6.57.4
09:00 am34Good6.17.0
10:00 am31Good5.66.8
11:00 am33Good6.08.1
12:00 pm27Good4.97.2
01:00 pm21Good3.75.6
02:00 pm22Good4.06.2
03:00 pm26Good4.67.2
04:00 pm28Good5.07.7
05:00 pm28Good5.07.5
06:00 pm27Good4.86.8
07:00 pm44Good7.910.7
08:00 pm39Good7.08.7
09:00 pm39Good7.08.3
10:00 pm42Good7.68.7
11:00 pm45Good8.19.3
12:00 am46Good8.39.6
01:00 am46Good8.29.5
02:00 am43Good7.89.0
03:00 am38Good6.98.1
04:00 am34Good6.17.3
05:00 am33Good5.97.1
06:00 am34Good6.27.5
07:00 am32Good5.76.6
08:00 am33Good6.06.9
09:00 am34Good6.27.3
10:00 am35Good6.37.4
11:00 am35Good6.37.2
12:00 pm34Good6.26.9
01:00 pm33Good5.96.5
02:00 pm29Good5.35.7
03:00 pm27Good4.85.4
04:00 pm27Good4.85.8
05:00 pm23Good4.14.8
06:00 pm24Good4.35.5
07:00 pm41Good7.48.0
08:00 pm39Good7.17.8
09:00 pm42Good7.68.3
10:00 pm49Good8.99.7
11:00 pm53Moderate10.311.4
12:00 am55Moderate11.112.4
01:00 am55Moderate11.112.6
02:00 am54Moderate10.812.4
03:00 am54Moderate10.712.3
04:00 am55Moderate11.413.0
05:00 am57Moderate12.514.2
06:00 am59Moderate13.415.0
07:00 am51Moderate9.310.1
08:00 am47Good8.49.1
09:00 am34Good6.16.6
10:00 am27Good4.95.3
11:00 am24Good4.34.6
12:00 pm27Good4.85.0
01:00 pm25Good4.54.7
02:00 pm22Good3.94.2
03:00 pm21Good3.84.0
04:00 pm23Good4.14.4
05:00 pm26Good4.65.0
06:00 pm28Good5.05.6
07:00 pm56Moderate11.812.9
08:00 pm57Moderate12.513.7
09:00 pm62Moderate15.016.1
10:00 pm65Moderate16.717.8
11:00 pm65Moderate16.617.7
12:00 am63Moderate15.416.4
01:00 am58Moderate12.613.2
02:00 am52Moderate9.59.8
03:00 am50Good9.09.2
04:00 am52Moderate9.810.0
05:00 am52Moderate9.810.0
06:00 am50Good9.09.2
07:00 am38Good6.97.0
08:00 am31Good5.65.7
09:00 am20Good3.63.6
10:00 am15Good2.72.8
11:00 am13Good2.32.3
12:00 pm12Good2.12.1
01:00 pm10Good1.81.9
02:00 pm16Good2.83.2
03:00 pm24Good4.35.2
04:00 pm34Good6.27.8
05:00 pm43Good7.79.8
06:00 pm42Good7.69.3
07:00 pm55Moderate11.113.8
08:00 pm55Moderate11.513.1
09:00 pm57Moderate12.313.4
10:00 pm54Moderate10.911.7
11:00 pm35Good6.36.7
12:00 am10Good1.81.9
01:00 am3Good0.60.6
02:00 am3Good0.50.5
03:00 am3Good0.50.5
04:00 am3Good0.50.5
05:00 am3Good0.50.5
06:00 am3Good0.60.6
07:00 am2Good0.40.4
08:00 am1Good0.10.1
09:00 am0Good0.00.0
10:00 am0Good0.00.0
11:00 am1Good0.10.1
12:00 pm1Good0.10.1
01:00 pm1Good0.10.2
02:00 pm1Good0.20.2
03:00 pm1Good0.20.4
04:00 pm2Good0.30.5
05:00 pm2Good0.40.5
06:00 pm3Good0.50.7
07:00 pm19Good3.54.6
08:00 pm21Good3.85.3
09:00 pm31Good5.56.8
10:00 pm38Good6.98.5
11:00 pm44Good8.09.4
12:00 am51Moderate9.310.7
01:00 am54Moderate10.612.1
02:00 am60Moderate13.915.3
03:00 am51Moderate9.210.2
04:00 am30Good5.46.0
05:00 am28Good5.15.8
06:00 am31Good5.56.2
07:00 am46Good8.38.6
08:00 am46Good8.28.8
09:00 am30Good5.46.2
10:00 am23Good4.25.0
11:00 am18Good3.34.1
12:00 pm17Good3.14.0
01:00 pm14Good2.53.3
02:00 pm9Good1.62.2
03:00 pm8Good1.52.3
04:00 pm11Good1.93.1
05:00 pm14Good2.54.1
06:00 pm17Good3.15.1
07:00 pm17Good3.05.1
08:00 pm17Good3.05.0
09:00 pm34Good6.27.9
10:00 pm58Moderate13.115.0
11:00 pm69Moderate18.620.6
12:00 am66Moderate17.318.8
01:00 am54Moderate10.711.7
02:00 am51Moderate9.310.2
03:00 am53Moderate10.111.0
04:00 am56Moderate11.612.5
05:00 am59Moderate13.414.2
06:00 am61Moderate14.415.0
07:00 am39Good7.07.3
08:00 am27Good4.85.0
09:00 am16Good2.82.9
10:00 am11Good1.92.0
11:00 am8Good1.41.5
12:00 pm6Good1.11.1
01:00 pm5Good0.91.0
02:00 pm5Good0.91.0
03:00 pm6Good1.01.1
04:00 pm6Good1.01.2
05:00 pm6Good1.01.1
06:00 pm5Good0.91.1
07:00 pm6Good1.11.2
08:00 pm7Good1.31.4
09:00 pm11Good1.91.9
10:00 pm16Good2.82.9
11:00 pm22Good4.04.1
12:00 am26Good4.74.8
01:00 am27Good4.95.0
02:00 am29Good5.25.2
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