Greenwich 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.
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Thu 18 Dec, 2025 Weather in Greenwich

Sunrise: 07:15 AM Sunset: 04:28 PM	Moonrise: 06:17 AM Moonset: 03:02 PM	Max: 7.2 °c	Min: -0.6 °c	Avg: 2.4 °c	Precip: 0.00 mm	Max Wind: 11.5 kph

	Thu 18 0:00 am	Thu 18 3:00 am	Thu 18 6:00 am	Thu 18 9:00 am	Thu 18 12:00 pm	Thu 18 3:00 pm	Thu 18 6:00 pm	Thu 18 9:00 pm
Icon
Temp	2.1°c	0.6°c	-0.4°c	-0.5°c	1.1°c	3.2°c	5.4°c	7.2°c
Wind	11.2 kmph	8.3 kmph	2.2 kmph	9.4 kmph	3.2 kmph	5.4 kmph	7.9 kmph	7.9 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	0%	3%	40%	87%	100%	100%	100%	100%
Humidity	82%	90%	95%	97%	98%	98%	99%	99%
Pressure	1022 mb	1024 mb	1024 mb	1024 mb	1024 mb	1021 mb	1019 mb	1017 mb

Greenwich Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	3°C / 37°F	-3°C / 27°F	0°C / 32°F	175 hours	96.68 mm / 3.81 In	7 days	1017 mb / 31 In
February	4°C / 39°F	-2°C / 28°F	1°C / 33°F	147 hours	108.36 mm / 4.27 In	7 days	1017 mb / 31 In
March	8°C / 47°F	1°C / 34°F	5°C / 40°F	162 hours	127.33 mm / 5.01 In	7 days	1017 mb / 31 In
April	14°C / 57°F	6°C / 44°F	10°C / 50°F	162 hours	116.95 mm / 4.60 In	7 days	1015 mb / 30 In
May	20°C / 67°F	12°C / 53°F	16°C / 60°F	186 hours	123.94 mm / 4.88 In	8 days	1016 mb / 30 In
June	25°C / 77°F	17°C / 63°F	21°C / 69°F	198 hours	124.74 mm / 4.91 In	9 days	1014 mb / 30 In
July	29°C / 83°F	21°C / 70°F	25°C / 76°F	218 hours	154.83 mm / 6.10 In	10 days	1014 mb / 30 In
August	27°C / 81°F	20°C / 69°F	24°C / 75°F	221 hours	126.46 mm / 4.98 In	8 days	1015 mb / 30 In
September	24°C / 75°F	17°C / 62°F	20°C / 68°F	203 hours	119.45 mm / 4.70 In	7 days	1018 mb / 31 In
October	18°C / 64°F	11°C / 52°F	14°C / 58°F	178 hours	135.53 mm / 5.34 In	6 days	1017 mb / 31 In
November	11°C / 52°F	5°C / 41°F	8°C / 46°F	203 hours	100.52 mm / 3.96 In	6 days	1019 mb / 31 In
December	6°C / 43°F	1°C / 34°F	3°C / 38°F	163 hours	149.85 mm / 5.90 In	8 days	1019 mb / 31 In

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