Grand Isle Weather History Maine, 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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Mon 02 Jun, 2025 Weather in Grand Isle

Sunrise: 05:40 AM Sunset: 09:24 PM	Moonrise: 12:38 PM Moonset: 02:02 AM	Max: 10.2 °c	Min: 4.7 °c	Avg: 7.3 °c	Precip: 3.56 mm	Max Wind: 18.7 kph

	Mon 02 0:00 am	Mon 02 3:00 am	Mon 02 6:00 am	Mon 02 9:00 am	Mon 02 12:00 pm	Mon 02 3:00 pm	Mon 02 6:00 pm	Mon 02 9:00 pm
Icon
Temp	5.3°c	4.8°c	4.9°c	5.8°c	8.0°c	9.9°c	10.2°c	9.6°c
Wind	16.6 kmph	15.1 kmph	13.3 kmph	12.2 kmph	14.8 kmph	13.7 kmph	18.4 kmph	7.2 kmph
Precip	0.00 mm	0.00 mm	0.00 mm	0.59 mm	0.59 mm	0.00 mm	0.00 mm	0.00 mm
Cloud	100%	100%	100%	100%	100%	100%	98%	75%
Humidity	89%	88%	89%	90%	84%	75%	69%	68%
Pressure	1003 mb	1005 mb	1007 mb	1009 mb	1010 mb	1011 mb	1013 mb	1016 mb

Grand Isle Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	-7°C / 19°F	-16°C / 3°F	-11°C / 12°F	62 hours	82.59 mm / 3.25 In	10 days	1014 mb / 30 In
February	-6°C / 21°F	-16°C / 4°F	-10°C / 13°F	42 hours	75.91 mm / 2.99 In	9 days	1015 mb / 30 In
March	-1°C / 30°F	-10°C / 14°F	-5°C / 22°F	53 hours	98.95 mm / 3.90 In	10 days	1015 mb / 30 In
April	6°C / 43°F	-3°C / 27°F	2°C / 35°F	80 hours	113.01 mm / 4.45 In	9 days	1014 mb / 30 In
May	15°C / 60°F	4°C / 40°F	10°C / 50°F	143 hours	113.06 mm / 4.45 In	9 days	1015 mb / 30 In
June	20°C / 68°F	10°C / 49°F	15°C / 59°F	157 hours	125.24 mm / 4.93 In	10 days	1012 mb / 30 In
July	24°C / 75°F	13°C / 56°F	18°C / 65°F	180 hours	124.60 mm / 4.91 In	11 days	1012 mb / 30 In
August	23°C / 73°F	12°C / 54°F	17°C / 63°F	176 hours	117.87 mm / 4.64 In	10 days	1013 mb / 30 In
September	18°C / 65°F	8°C / 47°F	13°C / 55°F	172 hours	113.14 mm / 4.45 In	7 days	1016 mb / 30 In
October	11°C / 51°F	3°C / 37°F	6°C / 44°F	136 hours	119.12 mm / 4.69 In	7 days	1015 mb / 30 In
November	3°C / 37°F	-4°C / 25°F	-1°C / 31°F	108 hours	104.36 mm / 4.11 In	9 days	1016 mb / 30 In
December	-3°C / 26°F	-11°C / 13°F	-7°C / 20°F	79 hours	130.22 mm / 5.13 In	12 days	1016 mb / 30 In

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