Groton May Weather Averages Connecticut, United States of America

May Weather Averages for Groton

High Temp	18°C	65°F
Low Temp	11°C	51°F
Avg Temp	14°C	57°F
Sunshine Hours	193 hours
Rainfall	97.56 mm	3.84 In
Rain days	8 days
Pressure	1016 mb	30 In

Groton May Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	16°C / 62°F	10°C / 50°F	13°C / 55°F	212 hours	73.76 mm / 2.90 In	7 days	1011 mb / 30 In
2009	17°C / 62°F	11°C / 52°F	14°C / 57°F	204 hours	86.06 mm / 3.39 In	11 days	1017 mb / 31 In
2010	19°C / 67°F	11°C / 53°F	15°C / 59°F	247 hours	62.87 mm / 2.48 In	5 days	1016 mb / 30 In
2011	18°C / 65°F	11°C / 52°F	14°C / 58°F	182 hours	117.37 mm / 4.62 In	11 days	1016 mb / 30 In
2012	19°C / 66°F	12°C / 54°F	16°C / 60°F	170 hours	123.92 mm / 4.88 In	9 days	1017 mb / 30 In
2013	18°C / 65°F	10°C / 50°F	14°C / 57°F	216 hours	115.96 mm / 4.57 In	10 days	1018 mb / 31 In
2014	18°C / 64°F	10°C / 50°F	14°C / 57°F	206 hours	87.67 mm / 3.45 In	9 days	1016 mb / 30 In
2015	21°C / 69°F	11°C / 53°F	16°C / 60°F	251 hours	24.90 mm / 0.98 In	4 days	1020 mb / 31 In
2016	18°C / 64°F	10°C / 51°F	14°C / 57°F	152 hours	66.69 mm / 2.63 In	12 days	1015 mb / 30 In
2017	17°C / 62°F	10°C / 49°F	13°C / 56°F	141 hours	163.83 mm / 6.45 In	9 days	1013 mb / 30 In
2018	20°C / 68°F	11°C / 53°F	15°C / 60°F	216 hours	54.01 mm / 2.13 In	9 days	1018 mb / 31 In
2019	18°C / 64°F	10°C / 49°F	13°C / 56°F	180 hours	130.58 mm / 5.14 In	9 days	1015 mb / 30 In
2020	16°C / 61°F	9°C / 48°F	12°C / 54°F	162 hours	122.31 mm / 4.82 In	7 days	1016 mb / 30 In
2021	18°C / 64°F	10°C / 50°F	14°C / 57°F	174 hours	141.40 mm / 5.57 In	6 days	1018 mb / 31 In
2022	19°C / 66°F	11°C / 51°F	14°C / 58°F	206 hours	74.60 mm / 2.94 In	6 days	1018 mb / 31 In
2023	19°C / 65°F	9°C / 49°F	14°C / 57°F	256 hours	85.05 mm / 3.35 In	2 days	1016 mb / 30 In
2024	16°C / 62°F	11°C / 52°F	14°C / 56°F	132 hours	103.76 mm / 4.08 In	6 days	1014 mb / 30 In

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