Groton Weather History Connecticut, United States of America

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Past date: Past date must be from 1st Jan, 2009 onwards.

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Daily and hourly data from 1 Jan 2009 onwards.
Yearly Monthly Averages
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Tue 03 Jun, 2025 Weather in Groton

Sunrise: 05:17 AM Sunset: 08:17 PM	Moonrise: 01:06 PM Moonset: 01:27 AM	Max: 20.0 °c	Min: 12.4 °c	Avg: 15.7 °c	Precip: 0.00 mm	Max Wind: 13.3 kph

	Tue 03 0:00 am	Tue 03 3:00 am	Tue 03 6:00 am	Tue 03 9:00 am	Tue 03 12:00 pm	Tue 03 3:00 pm	Tue 03 6:00 pm	Tue 03 9:00 pm
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Temp	13.4°c	12.7°c	13.7°c	17.2°c	19.7°c	19.4°c	16.3°c	13.3°c
Wind	7.2 kmph	7.9 kmph	11.2 kmph	9.7 kmph	7.2 kmph	6.8 kmph	13.3 kmph	10.8 kmph
Precip	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm
Cloud	21%	18%	16%	27%	25%	35%	44%	56%
Humidity	74%	80%	84%	71%	60%	65%	79%	92%
Pressure	1018 mb	1018 mb	1020 mb	1021 mb	1022 mb	1021 mb	1022 mb	1023 mb

Groton Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	3°C / 37°F	-3°C / 26°F	0°C / 32°F	177 hours	102.45 mm / 4.03 In	7 days	1016 mb / 30 In
February	4°C / 39°F	-3°C / 27°F	1°C / 33°F	146 hours	114.25 mm / 4.50 In	7 days	1017 mb / 31 In
March	7°C / 45°F	1°C / 33°F	4°C / 39°F	166 hours	135.70 mm / 5.34 In	7 days	1017 mb / 31 In
April	13°C / 55°F	6°C / 42°F	9°C / 48°F	166 hours	123.21 mm / 4.85 In	7 days	1015 mb / 30 In
May	18°C / 65°F	11°C / 51°F	14°C / 57°F	193 hours	97.56 mm / 3.84 In	8 days	1016 mb / 30 In
June	23°C / 73°F	15°C / 59°F	19°C / 66°F	208 hours	109.92 mm / 4.33 In	8 days	1014 mb / 30 In
July	27°C / 80°F	19°C / 67°F	23°C / 73°F	226 hours	110.34 mm / 4.34 In	9 days	1014 mb / 30 In
August	26°C / 79°F	19°C / 66°F	22°C / 72°F	238 hours	117.92 mm / 4.64 In	7 days	1015 mb / 30 In
September	23°C / 73°F	16°C / 60°F	19°C / 66°F	215 hours	100.71 mm / 3.97 In	6 days	1018 mb / 31 In
October	17°C / 63°F	11°C / 51°F	14°C / 57°F	183 hours	134.26 mm / 5.29 In	6 days	1017 mb / 31 In
November	11°C / 52°F	5°C / 40°F	8°C / 46°F	205 hours	108.93 mm / 4.29 In	6 days	1019 mb / 31 In
December	6°C / 43°F	1°C / 33°F	3°C / 38°F	170 hours	159.82 mm / 6.29 In	7 days	1018 mb / 31 In

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