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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Wed 18 Mar, 2026 Weather in Greenwich

Sunrise: 07:01 AM Sunset: 07:05 PM	Moonrise: 06:43 AM Moonset: 06:55 PM	Max: 0.2 °c	Min: -4.4 °c	Avg: -1.8 °c	Precip: 0.00 mm	Max Wind: 20.9 kph

	Wed 18 0:00 am	Wed 18 3:00 am	Wed 18 6:00 am	Wed 18 9:00 am	Wed 18 12:00 pm	Wed 18 3:00 pm	Wed 18 6:00 pm	Wed 18 9:00 pm
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Temp	-1.7°c	-3.4°c	-4.3°c	-3.3°c	-0.8°c	0.2°c	-0.5°c	-0.8°c
Wind	19.8 kmph	20.9 kmph	18.4 kmph	15.8 kmph	10.4 kmph	9.0 kmph	12.2 kmph	15.1 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	43%	4%	3%	53%	57%	57%	100%	100%
Humidity	64%	62%	60%	54%	48%	54%	64%	73%
Pressure	1022 mb	1024 mb	1027 mb	1030 mb	1029 mb	1028 mb	1028 mb	1029 mb

Greenwich Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	2°C / 36°F	-3°C / 26°F	0°C / 32°F	175 hours	100.39 mm / 3.95 In	7 days	1017 mb / 31 In
February	4°C / 39°F	-3°C / 27°F	1°C / 33°F	148 hours	113.80 mm / 4.48 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 / 42°F	1°C / 33°F	3°C / 38°F	163 hours	154.85 mm / 6.10 In	8 days	1018 mb / 31 In

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