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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, in Isle au Haut, Maine, is another cold winter month, with an average temperature fluctuating between 34.7°F (1.5°C) and 26.1°F (-3.3°C). With its high average temperature of 34.7°F (1.5°C) and a low of 26.1°F (-3.3°C), January is regarded as the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Isle au Haut, is also an icy month, with an average temperature fluctuating between 27°F (-2.8°C) and 35.1°F (1.7°C). With the advent of February, Isle au Haut's high-temperatures adjust to a still wintry 35.1°F (1.7°C), closely aligning with the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is still a cold month in Isle au Haut, Maine, with an average temperature ranging between max 37.9°F (3.3°C) and min 30.7°F (-0.7°C). March's commencement is accompanied by an average high-temperature of a still cold 37.9°F (3.3°C), diverging marginally from February's 35.1°F (1.7°C). Weather in March »
Weather in April
April in Isle au Haut, Maine, is a chilly spring month, with an average temperature ranging between max 44.1°F (6.7°C) and min 38.8°F (3.8°C). Isle au Haut's April weather indicates a minor ascent in high-temperatures, adjusting from an icy 37.9°F (3.3°C) in March to a chilly 44.1°F (6.7°C). Weather in April »
Weather in May
The last month of the spring, May, is a cool month in Isle au Haut, Maine, with temperature in the range of an average low of 46.2°F (7.9°C) and an average high of 50.7°F (10.4°C). In Isle au Haut, the average high-temperature in May slightly increases from a chilly 44.1°F (6.7°C) in April to a cool 50.7°F (10.4°C). Weather in May »
Weather in June
The first month of the summer, June, is a refreshing month in Isle au Haut, Maine, with an average temperature varying between 57.9°F (14.4°C) and 53.6°F (12°C). June brings a slight increase in the average high-temperature, progressing from a fresh 50.7°F (10.4°C) in May to a moderate 57.9°F (14.4°C). Weather in June »
Weather in July
July is a comfortable summer month in Isle au Haut, Maine, with an average temperature fluctuating between 64.4°F (18°C) and 60.4°F (15.8°C). As June gives way to July, the average high-temperature displays a slight ascent, adjusting from a mild 57.9°F (14.4°C) to a still refreshing 64.4°F (18°C). Weather in July »
Weather in August
August, the last month of the summer in Isle au Haut, is also an enjoyable month, with an average temperature fluctuating between 61.7°F (16.5°C) and 65.7°F (18.7°C). Temperature records mark August as the warmest month, with highs averaging 65.7°F (18.7°C) and lows at 61.7°F (16.5°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a refreshing month in Isle au Haut, Maine, with an average temperature ranging between min 57.4°F (14.1°C) and max 61.7°F (16.5°C). September's weather displays an average high-temperature of a still refreshing 61.7°F (16.5°C), slightly varied from August's 65.7°F (18.7°C). Weather in September »
Weather in October
October, the same as September, is a cool autumn month in Isle au Haut, Maine, with temperature in the range of an average low of 50.4°F (10.2°C) and an average high of 55°F (12.8°C). A moderate decline in average high-temperatures is noted in October, moving from a refreshing 61.7°F (16.5°C) in September to a cool 55°F (12.8°C). Weather in October »
Weather in November
November, the last month of the autumn in Isle au Haut, is also a frosty month, with an average temperature ranging between max 47.3°F (8.5°C) and min 41°F (5°C). A mild drop in Isle au Haut's average high-temperature is observed in November, transitioning from a cool 55°F (12.8°C) in October to a frosty 47.3°F (8.5°C). Weather in November »
Weather in December
The first month of the winter, December, is still a cold month in Isle au Haut, Maine, with temperature in the range of an average low of 32.4°F (0.2°C) and an average high of 39.7°F (4.3°C). As Isle au Haut enters December, the average high-temperature subtly lowers from the a frosty 47.3°F (8.5°C) of November to a wintry 39.7°F (4.3°C). Weather in December »
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
January is the coldest month, with the temperature often reaching an average high of 34.7°F (1.5°C) and an average low of 26.1°F (-3.3°C).
How many days does it rain in Isle au Haut?
In Isle au Haut, during the entire year, the rain falls for 109.9 days and collects up to 9.72" (247mm) of precipitation.
When does it snow in Isle au Haut?
Months with snowfall are January through April, November and December.
When does it snow the most?
January is the month with the most snowfall. Snow falls for 9.1 days and accumulates 0.79" (20mm) of snow.
How much does it snow?
In Isle au Haut, during the entire year, snow falls for 30.9 days and aggregates up to 2.91" (74mm) of snow.
What is the month with the lowest UV index?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
When is Daylight Saving Time (DST) in Isle au Haut?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
When it does not snow in Isle au Haut?
May through October are months without snowfall.
What is the most humid month?
The months with the highest humidity are June through August, with an average relative humidity of 86%.
When are the longest days?
The month with the longest days is June, with an average of 15h and 24min of daylight.
What is the month with the highest UV index?
July and August, with an average maximum UV index of 5, are months with the highest UV index.
What are the warmest months?
August tends to be the warmest month, with temperatures averaging a daily high of 65.7°F (18.7°C) and a low of 61.7°F (16.5°C).
What is the driest month in Isle au Haut?
August and September are months with the least rain when the rain falls for 8.4 days and typically aggregates up to 0.55" (14mm) of rain.
What month has the most sunshine?
August has the most sunshine of the year, with an average of 10.7h of sunshine.
What is the wettest month in Isle au Haut?
The wettest months are October and November, with an average 1.02" (26mm) of rainfall.
What is the least humid month?
The least humid month in Isle au Haut is November, with an average relative humidity of 74%.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 8h and 54min of daylight.
What is the month with the least sunshine?
December has the least sunshine of the year, with an average of 4.3h of sunshine.
Average temperature
Isle au Haut, ME
The warmest month (with the highest average high temperature) is August (65.7°F).
The month with the lowest average high temperature is January (34.7°F).
The month with the highest average low temperature is August (61.7°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure
Isle au Haut, ME
- Average pressure in January:
29.95"Hg - Average pressure in February:
29.94"Hg - Average pressure in March:
30"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.04"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.03"Hg - Average pressure in December:
29.99"Hg
The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Isle au Haut, ME
- Average wind speed in January:
19.4mph - Average wind speed in February:
18.8mph - Average wind speed in March:
18mph - Average wind speed in April:
15.2mph - Average wind speed in May:
12.3mph - Average wind speed in June:
11.5mph
- Average wind speed in July:
10.3mph - Average wind speed in August:
10.3mph - Average wind speed in September:
12.1mph - Average wind speed in October:
15.7mph - Average wind speed in November:
17.6mph - Average wind speed in December:
18.8mph
The windiest month (with the highest average wind speed) is January (19.4mph).
The calmest months (with the lowest average wind speed) are July and August (10.3mph).
Average humidity
Isle au Haut, ME
The months with the highest relative humidity are June, July and August (86%).
The month with the lowest relative humidity is November (74%).
Average rainfall
Isle au Haut, ME
- Average rainfall in January:
0.91" - Average rainfall in February:
0.75" - Average rainfall in March:
0.59" - Average rainfall in April:
0.94" - Average rainfall in May:
0.75" - Average rainfall in June:
0.94"
- Average rainfall in July:
0.79" - Average rainfall in August:
0.55" - Average rainfall in September:
0.55" - Average rainfall in October:
1.02" - Average rainfall in November:
1.02" - Average rainfall in December:
0.91"
The wettest months (with the highest rainfall) are October and November (1.02").
The driest months (with the least rainfall) are August and September (0.55").
Average rainfall days
Isle au Haut, ME
- Average rainfall days in January:
6.2 days - Average rainfall days in February:
6.9 days - Average rainfall days in March:
8.6 days - Average rainfall days in April:
10.8 days - Average rainfall days in May:
10.9 days - Average rainfall days in June:
9.8 days
- Average rainfall days in July:
11.6 days - Average rainfall days in August:
8.4 days - Average rainfall days in September:
7.8 days - Average rainfall days in October:
10 days - Average rainfall days in November:
9.9 days - Average rainfall days in December:
9 days
The month with the highest number of rainy days is July (11.6 days).
The month with the least rainy days is January (6.2 days).
Average snowfall
Isle au Haut, ME
The month with the highest snowfall is January (0.79").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Isle au Haut, ME
- Average snowfall days in January:
9.1 days - Average snowfall days in February:
6.2 days - Average snowfall days in March:
4.7 days - Average snowfall days in April:
1.5 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
2 days - Average snowfall days in December:
7.3 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Isle au Haut, ME
- Average daylight in January:
9h and 2min - Average daylight in February:
10h and 3min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 3min - Average daylight in May:
14h and 5min - Average daylight in June:
15h and 2min
- Average daylight in July:
15h and 1min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 4min - Average daylight in December:
8h and 5min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January:
4h and 3min - Average sunshine in February:
4h and 3min - Average sunshine in March:
5h and 4min - Average sunshine in April:
7h and 5min - Average sunshine in May:
8h and 1min - Average sunshine in June:
8h and 5min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
10h and 4min - Average sunshine in September:
8h and 3min - Average sunshine in October:
6h and 3min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days
Isle au Haut, ME
- Average sunshine days in January:
14.3 days - Average sunshine days in February:
13.5 days - Average sunshine days in March:
16.3 days - Average sunshine days in April:
16.8 days - Average sunshine days in May:
18.3 days - Average sunshine days in June:
18.5 days
- Average sunshine days in July:
17.8 days - Average sunshine days in August:
21.2 days - Average sunshine days in September:
21.1 days - Average sunshine days in October:
18.2 days - Average sunshine days in November:
18.1 days - Average sunshine days in December:
13.7 days
The month with the most sunshine days is August (21.2 days).
The month with the least sunshine days is February (13.5 days).
Average UV index
Isle au Haut, ME
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Isle au Haut, ME
The months with the most cloud cover are February and December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility
Isle au Haut, ME
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Isle au Haut, Maine, USA
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