Helena Valley Southeast AQI History

Hourly air quality data for the past 24 hours in Helena Valley Southeast, Montana.

24-Hour Summary

Average AQI

Peak AQI

Best AQI

Hourly AQI Data

TimeAQICategoryPM2.5PM10
01:00 am43Good7.710.5
02:00 am43Good7.810.5
03:00 am44Good7.910.8
04:00 am46Good8.211.2
05:00 am47Good8.411.6
06:00 am43Good7.710.7
07:00 am43Good7.710.8
08:00 am32Good5.88.6
09:00 am31Good5.69.0
10:00 am30Good5.48.9
11:00 am29Good5.38.8
12:00 pm29Good5.28.7
01:00 pm28Good5.18.7
02:00 pm27Good4.98.6
03:00 pm27Good4.88.6
04:00 pm26Good4.78.3
05:00 pm26Good4.68.0
06:00 pm51Moderate9.218.7
07:00 pm44Good7.913.8
08:00 pm41Good7.411.6
09:00 pm39Good7.110.5
10:00 pm39Good7.010.1
11:00 pm39Good7.110.2
12:00 am41Good7.410.7
01:00 am44Good7.911.6
02:00 am51Moderate9.213.6
03:00 am52Moderate9.914.5
04:00 am52Moderate9.814.2
05:00 am52Moderate9.713.8
06:00 am52Moderate9.512.7
07:00 am51Moderate9.112.5
08:00 am37Good6.79.1
09:00 am33Good5.99.9
10:00 am28Good5.010.6
11:00 am30Good5.413.0
12:00 pm32Good5.814.1
01:00 pm33Good5.914.1
02:00 pm32Good5.713.5
03:00 pm32Good5.713.4
04:00 pm29Good5.311.4
05:00 pm27Good4.910.2
06:00 pm57Moderate12.127.2
07:00 pm53Moderate10.219.5
08:00 pm47Good8.413.7
09:00 pm44Good8.012.3
10:00 pm43Good7.812.4
11:00 pm41Good7.412.1
12:00 am41Good7.313.1
01:00 am35Good6.312.2
02:00 am33Good6.011.6
03:00 am32Good5.811.0
04:00 am32Good5.710.8
05:00 am29Good5.310.0
06:00 am32Good5.810.9
07:00 am32Good5.710.0
08:00 am29Good5.210.4
09:00 am28Good5.110.2
10:00 am29Good5.310.4
11:00 am35Good6.312.2
12:00 pm39Good7.013.1
01:00 pm43Good7.714.1
02:00 pm44Good7.914.0
03:00 pm41Good7.412.1
04:00 pm33Good5.98.6
05:00 pm27Good4.86.2
06:00 pm44Good7.910.9
07:00 pm39Good7.19.2
08:00 pm34Good6.28.0
09:00 pm29Good5.36.5
10:00 pm21Good3.84.7
11:00 pm16Good2.93.4
12:00 am11Good1.92.3
01:00 am7Good1.31.6
02:00 am5Good0.91.1
03:00 am3Good0.60.7
04:00 am2Good0.40.5
05:00 am2Good0.30.3
06:00 am5Good0.91.2
07:00 am5Good0.91.2
08:00 am4Good0.81.0
09:00 am3Good0.50.6
10:00 am2Good0.30.3
11:00 am1Good0.20.2
12:00 pm1Good0.10.1
01:00 pm1Good0.10.1
02:00 pm1Good0.10.1
03:00 pm1Good0.10.1
04:00 pm1Good0.10.1
05:00 pm1Good0.10.1
06:00 pm4Good0.80.9
07:00 pm3Good0.60.7
08:00 pm4Good0.70.8
09:00 pm6Good1.01.3
10:00 pm7Good1.31.7
11:00 pm8Good1.51.9
12:00 am9Good1.62.1
01:00 am9Good1.72.3
02:00 am11Good1.92.6
03:00 am12Good2.22.9
04:00 am14Good2.63.5
05:00 am17Good3.14.2
06:00 am12Good2.22.9
07:00 am14Good2.63.3
08:00 am14Good2.63.4
09:00 am18Good3.24.1
10:00 am19Good3.44.5
11:00 am16Good2.93.6
12:00 pm14Good2.53.0
01:00 pm12Good2.12.4
02:00 pm9Good1.61.9
03:00 pm7Good1.21.4
04:00 pm4Good0.81.0
05:00 pm4Good0.70.9
06:00 pm17Good3.03.8
07:00 pm13Good2.32.9
08:00 pm10Good1.82.3
09:00 pm9Good1.72.2
10:00 pm11Good1.92.4
11:00 pm13Good2.42.8
12:00 am17Good3.13.6
01:00 am20Good3.64.1
02:00 am22Good3.94.5
03:00 am24Good4.34.9
04:00 am28Good5.05.6
05:00 am32Good5.86.5
06:00 am23Good4.14.6
07:00 am25Good4.55.1
08:00 am23Good4.24.8
09:00 am22Good4.05.1
10:00 am25Good4.56.2
11:00 am32Good5.78.1
12:00 pm35Good6.39.0
01:00 pm39Good7.110.0
02:00 pm39Good7.010.0
03:00 pm36Good6.49.2
04:00 pm32Good5.88.3
05:00 pm28Good5.17.1
06:00 pm34Good6.17.8
07:00 pm31Good5.67.1
08:00 pm28Good5.06.2
09:00 pm27Good4.95.8
10:00 pm27Good4.95.7
11:00 pm28Good5.05.7
12:00 am29Good5.35.8
01:00 am30Good5.45.8
02:00 am30Good5.45.8
03:00 am31Good5.55.8
04:00 am33Good5.96.2
05:00 am36Good6.46.7
06:00 am36Good6.56.8
07:00 am36Good6.46.7
08:00 am23Good4.24.5
09:00 am20Good3.64.3
10:00 am25Good4.55.6
11:00 am29Good5.36.7
12:00 pm30Good5.46.9
01:00 pm27Good4.96.2
02:00 pm24Good4.35.4
03:00 pm22Good3.94.8
04:00 pm19Good3.54.6
05:00 pm18Good3.24.5
06:00 pm18Good3.25.0
07:00 pm18Good3.35.5
08:00 pm19Good3.55.5
09:00 pm21Good3.75.6
10:00 pm22Good4.06.0
11:00 pm23Good4.16.2
12:00 am24Good4.46.7
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