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.
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Sat 20 Dec, 2025 Weather in Grand Isle

Sunrise: 07:17 AM Sunset: 03:45 PM	Moonrise: 08:17 AM Moonset: 03:51 PM	Max: 1.6 °c	Min: -8.7 °c	Avg: -5.5 °c	Precip: 4.00 mm	Max Wind: 34.9 kph

	Sat 20 0:00 am	Sat 20 3:00 am	Sat 20 6:00 am	Sat 20 9:00 am	Sat 20 12:00 pm	Sat 20 3:00 pm	Sat 20 6:00 pm	Sat 20 9:00 pm
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Temp	1.6°c	-1.6°c	-6.5°c	-8.5°c	-6.5°c	-5.8°c	-7.4°c	-8.7°c
Wind	30.2 kmph	26.6 kmph	32.0 kmph	34.6 kmph	32.0 kmph	22.3 kmph	10.1 kmph	6.5 kmph
Precip	0.00 mm	0.70 mm	0.70 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm
Cloud	100%	100%	95%	45%	0%	0%	5%	54%
Humidity	87%	87%	82%	66%	54%	52%	57%	64%
Pressure	982 mb	985 mb	990 mb	996 mb	1002 mb	1008 mb	1014 mb	1018 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	5°C / 40°F	10°C / 50°F	141 hours	115.48 mm / 4.55 In	8 days	1015 mb / 30 In
June	20°C / 68°F	10°C / 49°F	15°C / 59°F	156 hours	125.40 mm / 4.94 In	10 days	1012 mb / 30 In
July	24°C / 75°F	13°C / 56°F	19°C / 65°F	178 hours	130.33 mm / 5.13 In	11 days	1012 mb / 30 In
August	23°C / 73°F	12°C / 54°F	18°C / 64°F	176 hours	115.31 mm / 4.54 In	9 days	1014 mb / 30 In
September	18°C / 65°F	8°C / 47°F	13°C / 56°F	170 hours	115.70 mm / 4.56 In	7 days	1016 mb / 30 In
October	11°C / 51°F	3°C / 37°F	7°C / 44°F	134 hours	118.33 mm / 4.66 In	7 days	1016 mb / 30 In
November	3°C / 37°F	-4°C / 25°F	-1°C / 31°F	106 hours	108.35 mm / 4.27 In	9 days	1015 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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