Groton September Weather Averages Massachusetts, United States of America

September Weather Averages for Groton

High Temp	23°C	74°F
Low Temp	13°C	55°F
Avg Temp	18°C	64°F
Sunshine Hours	206 hours
Rainfall	97.21 mm	3.83 In
Rain days	6 days
Pressure	1018 mb	31 In

Groton September Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2009	21°C / 70°F	11°C / 52°F	16°C / 61°F	242 hours	36.33 mm / 1.43 In	3 days	1018 mb / 31 In
2010	24°C / 74°F	14°C / 57°F	18°C / 65°F	215 hours	61.41 mm / 2.42 In	5 days	1014 mb / 30 In
2011	23°C / 74°F	14°C / 56°F	18°C / 64°F	192 hours	134.87 mm / 5.31 In	8 days	1017 mb / 31 In
2012	22°C / 71°F	12°C / 53°F	17°C / 62°F	240 hours	104.01 mm / 4.09 In	8 days	1016 mb / 30 In
2013	22°C / 72°F	11°C / 52°F	16°C / 62°F	244 hours	85.53 mm / 3.37 In	6 days	1015 mb / 30 In
2014	23°C / 74°F	12°C / 54°F	17°C / 63°F	256 hours	16.40 mm / 0.65 In	4 days	1019 mb / 31 In
2015	25°C / 77°F	14°C / 57°F	19°C / 66°F	192 hours	131.37 mm / 5.17 In	4 days	1018 mb / 31 In
2016	24°C / 76°F	14°C / 57°F	19°C / 66°F	219 hours	60.03 mm / 2.36 In	6 days	1019 mb / 31 In
2017	25°C / 77°F	15°C / 58°F	19°C / 66°F	207 hours	61.36 mm / 2.42 In	6 days	1016 mb / 30 In
2018	24°C / 75°F	14°C / 58°F	19°C / 66°F	154 hours	135.49 mm / 5.33 In	6 days	1022 mb / 31 In
2019	24°C / 75°F	12°C / 54°F	17°C / 63°F	245 hours	36.37 mm / 1.43 In	4 days	1019 mb / 31 In
2020	24°C / 75°F	13°C / 56°F	18°C / 65°F	214 hours	34.25 mm / 1.35 In	5 days	1019 mb / 31 In
2021	23°C / 74°F	13°C / 56°F	18°C / 65°F	170 hours	153.00 mm / 6.02 In	10 days	1016 mb / 30 In
2022	23°C / 73°F	12°C / 54°F	17°C / 62°F	177 hours	145.50 mm / 5.73 In	5 days	1016 mb / 30 In
2023	24°C / 75°F	13°C / 55°F	18°C / 64°F	165 hours	160.98 mm / 6.34 In	7 days	1018 mb / 31 In
2024	22°C / 71°F	12°C / 54°F	17°C / 62°F	165 hours	198.50 mm / 7.82 In	5 days	1020 mb / 31 In

Massachusetts

Hotels Near Groton

Cities Near Groton

Quick and Easy Signup for Weather API

WeatherAPI.com makes it super easy to integrate our realtime, daily, hourly and 15 min interval weather forecast data, historical weather, marine weather, bulk request, air quality data, autocomplete, time zone, astronomy and sports data into your new or existing project.

Get Started