Groton AQI History

Hourly air quality data for the past 24 hours in Groton, Massachusetts.

24-Hour Summary

Average AQI

Peak AQI

Best AQI

Hourly AQI Data

TimeAQICategoryPM2.5PM10
04:00 am53Moderate10.010.4
05:00 am54Moderate10.911.4
06:00 am56Moderate11.912.6
07:00 am59Moderate13.414.1
08:00 am38Good6.97.2
09:00 am34Good6.26.5
10:00 am22Good3.94.1
11:00 am23Good4.14.4
12:00 pm31Good5.66.0
01:00 pm37Good6.67.1
02:00 pm39Good7.17.5
03:00 pm38Good6.87.1
04:00 pm34Good6.16.5
05:00 pm29Good5.25.6
06:00 pm24Good4.34.6
07:00 pm21Good3.73.9
08:00 pm62Moderate15.215.8
09:00 pm65Moderate16.517.0
10:00 pm68Moderate18.018.7
11:00 pm70Moderate19.420.1
12:00 am72Moderate20.421.1
01:00 am73Moderate21.122.0
02:00 am74Moderate21.722.6
03:00 am75Moderate21.922.9
04:00 am74Moderate21.522.6
05:00 am73Moderate20.721.8
06:00 am71Moderate19.720.5
07:00 am68Moderate18.319.0
08:00 am35Good6.36.5
09:00 am31Good5.58.3
10:00 am43Good7.712.0
11:00 am36Good6.59.7
12:00 pm29Good5.37.6
01:00 pm24Good4.46.3
02:00 pm22Good4.05.7
03:00 pm21Good3.85.5
04:00 pm24Good4.46.1
05:00 pm26Good4.65.8
06:00 pm28Good5.16.1
07:00 pm34Good6.27.2
08:00 pm73Moderate20.726.8
09:00 pm74Moderate21.427.8
10:00 pm68Moderate18.222.8
11:00 pm63Moderate15.418.0
12:00 am59Moderate13.315.5
01:00 am58Moderate12.615.0
02:00 am57Moderate12.214.4
03:00 am56Moderate11.713.4
04:00 am52Moderate9.610.4
05:00 am37Good6.77.0
06:00 am24Good4.34.5
07:00 am8Good1.41.6
08:00 am11Good1.92.4
09:00 am4Good0.80.9
10:00 am3Good0.50.5
11:00 am2Good0.40.4
12:00 pm2Good0.40.5
01:00 pm4Good0.80.8
02:00 pm8Good1.41.5
03:00 pm12Good2.12.3
04:00 pm20Good3.64.1
05:00 pm18Good3.23.6
06:00 pm20Good3.64.2
07:00 pm23Good4.24.9
08:00 pm54Moderate10.813.1
09:00 pm58Moderate12.715.1
10:00 pm63Moderate15.517.9
11:00 pm68Moderate18.320.6
12:00 am71Moderate20.022.3
01:00 am72Moderate20.622.8
02:00 am73Moderate20.822.8
03:00 am71Moderate19.721.5
04:00 am66Moderate17.018.7
05:00 am59Moderate13.214.6
06:00 am51Moderate9.110.1
07:00 am29Good5.35.8
08:00 am12Good2.22.5
09:00 am13Good2.42.8
10:00 am14Good2.53.0
11:00 am18Good3.23.8
12:00 pm27Good4.96.0
01:00 pm32Good5.87.8
02:00 pm40Good7.29.6
03:00 pm45Good8.110.1
04:00 pm51Moderate9.111.5
05:00 pm52Moderate9.811.9
06:00 pm53Moderate10.211.5
07:00 pm53Moderate10.411.2
08:00 pm65Moderate16.418.4
09:00 pm64Moderate15.917.4
10:00 pm61Moderate14.715.8
11:00 pm61Moderate14.315.3
12:00 am63Moderate15.516.6
01:00 am66Moderate17.218.3
02:00 am69Moderate18.619.8
03:00 am71Moderate19.721.0
04:00 am65Moderate16.617.7
05:00 am60Moderate13.715.0
06:00 am54Moderate10.813.3
07:00 am50Good9.011.8
08:00 am33Good5.97.7
09:00 am28Good5.06.9
10:00 am27Good4.97.1
11:00 am28Good5.07.3
12:00 pm29Good5.27.6
01:00 pm27Good4.97.2
02:00 pm25Good4.56.5
03:00 pm22Good4.05.7
04:00 pm21Good3.85.3
05:00 pm22Good4.05.5
06:00 pm21Good3.85.2
07:00 pm24Good4.35.7
08:00 pm64Moderate16.321.9
09:00 pm68Moderate18.323.9
10:00 pm69Moderate19.024.6
11:00 pm71Moderate19.825.4
12:00 am72Moderate20.526.1
01:00 am73Moderate20.726.3
02:00 am71Moderate20.025.6
03:00 am69Moderate18.624.0
04:00 am64Moderate16.321.2
05:00 am59Moderate13.617.9
06:00 am56Moderate11.615.3
07:00 am52Moderate9.612.3
08:00 am58Moderate12.716.8
09:00 am62Moderate15.120.2
10:00 am67Moderate17.523.2
11:00 am66Moderate17.322.1
12:00 pm63Moderate15.820.0
01:00 pm60Moderate13.817.2
02:00 pm57Moderate12.114.9
03:00 pm54Moderate10.712.9
04:00 pm52Moderate9.811.7
05:00 pm52Moderate9.911.5
06:00 pm54Moderate10.812.3
07:00 pm57Moderate12.413.6
08:00 pm60Moderate13.715.8
09:00 pm58Moderate13.014.7
10:00 pm57Moderate12.413.6
11:00 pm57Moderate12.213.1
12:00 am57Moderate12.213.0
01:00 am57Moderate12.413.2
02:00 am58Moderate12.713.6
03:00 am59Moderate13.314.2
04:00 am61Moderate14.215.0
05:00 am63Moderate15.716.5
06:00 am66Moderate16.917.8
07:00 am63Moderate15.816.2
08:00 am13Good2.42.5
09:00 am8Good1.51.6
10:00 am6Good1.01.0
11:00 am5Good0.90.9
12:00 pm4Good0.70.7
01:00 pm3Good0.60.6
02:00 pm3Good0.60.6
03:00 pm4Good0.70.7
04:00 pm4Good0.70.7
05:00 pm4Good0.80.8
06:00 pm6Good1.11.1
07:00 pm10Good1.81.9
08:00 pm26Good4.74.7
09:00 pm44Good7.98.1
10:00 pm54Moderate10.710.8
11:00 pm55Moderate11.411.6
12:00 am51Moderate9.19.5
01:00 am44Good7.98.6
02:00 am40Good7.27.9
03:00 am38Good6.97.6
← Back to Groton AQI