Groton Weather History Massachusetts, 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.
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Wed 23 Apr, 2025 Weather in Groton

Sunrise: 05:52 AM Sunset: 07:38 PM	Moonrise: 03:47 AM Moonset: 02:40 PM	Max: 20.8 °c	Min: 7.4 °c	Avg: 13.6 °c	Precip: 0.00 mm	Max Wind: 18.0 kph

	Wed 23 0:00 am	Wed 23 3:00 am	Wed 23 6:00 am	Wed 23 9:00 am	Wed 23 12:00 pm	Wed 23 3:00 pm	Wed 23 6:00 pm	Wed 23 9:00 pm
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Temp	9.7°c	7.8°c	7.6°c	11.7°c	17.3°c	20.4°c	18.7°c	15.3°c
Wind	14.0 kmph	8.6 kmph	9.4 kmph	11.5 kmph	13.7 kmph	18.0 kmph	13.0 kmph	6.8 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	7%	1%	1%	0%	0%	0%	0%	0%
Humidity	57%	62%	62%	54%	41%	35%	36%	42%
Pressure	1018 mb	1020 mb	1021 mb	1022 mb	1022 mb	1021 mb	1022 mb	1024 mb

Groton Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	0°C / 33°F	-7°C / 20°F	-3°C / 26°F	171 hours	94.30 mm / 3.71 In	8 days	1016 mb / 30 In
February	2°C / 36°F	-6°C / 21°F	-2°C / 28°F	142 hours	99.11 mm / 3.90 In	7 days	1016 mb / 30 In
March	7°C / 44°F	-2°C / 28°F	2°C / 36°F	149 hours	120.02 mm / 4.73 In	7 days	1016 mb / 30 In
April	13°C / 56°F	3°C / 38°F	8°C / 47°F	150 hours	103.67 mm / 4.08 In	8 days	1015 mb / 30 In
May	20°C / 68°F	9°C / 48°F	15°C / 58°F	182 hours	79.45 mm / 3.13 In	8 days	1016 mb / 30 In
June	25°C / 77°F	14°C / 57°F	19°C / 66°F	183 hours	105.24 mm / 4.14 In	9 days	1013 mb / 30 In
July	29°C / 83°F	18°C / 64°F	23°C / 73°F	214 hours	121.99 mm / 4.80 In	10 days	1014 mb / 30 In
August	27°C / 81°F	17°C / 62°F	22°C / 71°F	225 hours	106.24 mm / 4.18 In	8 days	1015 mb / 30 In
September	23°C / 74°F	13°C / 55°F	18°C / 64°F	206 hours	97.21 mm / 3.83 In	6 days	1018 mb / 31 In
October	16°C / 61°F	7°C / 45°F	12°C / 53°F	172 hours	113.76 mm / 4.48 In	8 days	1017 mb / 31 In
November	9°C / 49°F	1°C / 34°F	5°C / 41°F	200 hours	98.31 mm / 3.87 In	6 days	1018 mb / 31 In
December	4°C / 39°F	-3°C / 27°F	0°C / 33°F	170 hours	134.22 mm / 5.28 In	8 days	1018 mb / 31 In

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