Climate and monthly weather forecast
North Islesboro, ME

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Weather in January

January, like December, is a freezing cold winter month in North Islesboro, Maine, with temperature in the range of an average low of 16.2°F (-8.8°C) and an average high of 28.4°F (-2°C). During the coldest month, January, temperatures average a high of 28.4°F (-2°C) and a low of 16.2°F (-8.8°C). Weather in January »

Weather in February

The last month of the winter, February, is another freezing cold month in North Islesboro, Maine, with an average temperature fluctuating between 29.8°F (-1.2°C) and 17.4°F (-8.1°C). North Islesboro's weather in February, with an average high-temperature of a still subzero cold 29.8°F (-1.2°C), subtly shifts from January's 28.4°F (-2°C). Weather in February »

Weather in March

March, the first month of the spring in North Islesboro, is a wintry month, with an average temperature fluctuating between 24.3°F (-4.3°C) and 37°F (2.8°C). North Islesboro's transition into March is noticed by a slight rise in the average high-temperature, advancing from a subzero cold 29.8°F (-1.2°C) in February to a cold 37°F (2.8°C). Weather in March »

Weather in April

April in North Islesboro, Maine, is a frosty spring month, with an average temperature ranging between min 34.5°F (1.4°C) and max 48.9°F (9.4°C). North Islesboro experiences a temperature shift with the start of April, with average high-temperatures moving from a cold 37°F (2.8°C) in March to a frosty 48.9°F (9.4°C). Weather in April »

Weather in May

May, the last month of the spring in North Islesboro, is a refreshing month, with an average temperature ranging between min 43.9°F (6.6°C) and max 59.7°F (15.4°C). North Islesboro's transition into May is marked by a temperature shift, moving from a frosty 48.9°F (9.4°C) in April to a moderate 59.7°F (15.4°C). Weather in May »

Weather in June

The first month of the summer, June, is a comfortable month in North Islesboro, Maine, with temperature in the range of an average high of 66.7°F (19.3°C) and an average low of 50.7°F (10.4°C). The shift into June brings a slight increase in the average high-temperature, moving from a mild 59.7°F (15.4°C) in May to an enjoyable 66.7°F (19.3°C). Weather in June »

Weather in July

July is a warm summer month in North Islesboro, Maine, with an average temperature ranging between max 73.9°F (23.3°C) and min 57.7°F (14.3°C). North Islesboro's temperatures tend to hit their maximum during July and August, with an average high-temperature of 73.9°F (23.3°C). Weather in July »

Weather in August

August, the last month of the summer in North Islesboro, is also a moderately hot month, with an average temperature ranging between max 73.9°F (23.3°C) and min 56.8°F (13.8°C). July and August bring North Islesboro's highest average temperatures, reaching a high of 73.9°F (23.3°C). Weather in August »

Weather in September

The first month of the autumn, September, is also an enjoyable month in North Islesboro, Maine, with an average temperature fluctuating between 51.1°F (10.6°C) and 67.1°F (19.5°C). A subtle shift in North Islesboro's weather is observed as August turns into September, with the average high temperature reducing from a warm 73.9°F (23.3°C) to an enjoyable 67.1°F (19.5°C). Weather in September »

Weather in October

October, like September, is a moderate autumn month in North Islesboro, Maine, with an average temperature ranging between max 55.8°F (13.2°C) and min 43.2°F (6.2°C). North Islesboro's progression into October includes a drop in the average high-temperature, from a comfortable 67.1°F (19.5°C) in September to a still refreshing 55.8°F (13.2°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in North Islesboro, Maine, with an average temperature varying between 44.1°F (6.7°C) and 32.7°F (0.4°C). November suggests a modest reduction in the average high-temperature, shifting from a moderate 55.8°F (13.2°C) in October to a frosty 44.1°F (6.7°C). Weather in November »

Weather in December

December, the first month of the winter in North Islesboro, is still a cold month, with temperature in the range of an average low of 24.1°F (-4.4°C) and an average high of 34.2°F (1.2°C). Stepping into December, North Islesboro observes a temperature decline, with the average high falling from November's chilly 44.1°F (6.7°C) to an icy 34.2°F (1.2°C). Weather in December »
Updated: Jul 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

January, known for its average high temperature of 28.4°F (-2°C) and an average low temperature of 16.2°F (-8.8°C), is the coldest month.

How many days does it rain?

Throughout the year, there are 141.1 rainfall days, and 24.29" (617mm) of precipitation is accumulated.

When does it snow?

January through May, October through December are months with snowfall.

When does it snow the most?

The month with the most snowfall is January, when snow falls for 10.1 days and typically aggregates up to 4.57" (116mm) of snow.

How many days does it snow?

In North Islesboro, during the entire year, snow falls for 44.3 days and aggregates up to 16.81" (427mm) of snow.

What are the months with the lowest UV index in North Islesboro?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the most humid month?

February and July, with an average relative humidity of 83%, are most humid months in North Islesboro.

What is the month with the least sunshine?

February has the least sunshine of the year, with an average of 4.3h of sunshine.

When is Daylight Saving Time (DST)?

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 North Islesboro?

June through September are months without snowfall.

When are the longest days?

June has the longest days of the year in North Islesboro, with an average of 15h and 30min of daylight.

What are the months with the highest UV index?

June through August, with an average maximum UV index of 5, are months with the highest UV index.

What are the warmest months?

The peak of North Islesboro's temperatures is noted during July and August, averaging a high-temperature of 73.9°F (23.3°C).

What is the driest month?

July and September are months with the least rain when the rain falls for 14.5 days and typically aggregates up to 1.46" (37mm) of rain.

What month has the most sunshine?

With an average of 9.9h of sunshine, August has the most sunshine of the year.

What is the least humid month?

With an average relative humidity of 77%, November is the least humid month.

What is the wettest month?

The month with the most rainfall in North Islesboro is December, when the rain falls for 10.1 days and typically aggregates up to 2.72" (69mm) of precipitation.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 8h and 54min of daylight.

Average temperature
North Islesboro, ME

Average temperature - North Islesboro, ME

The warmest months (with the highest average high temperature) are July and August (73.9°F).
The month with the lowest average high temperature is January (28.4°F).

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).

Average pressure
North Islesboro, ME

Average pressure - North Islesboro, ME

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
North Islesboro, ME

Average wind speed - North Islesboro, ME

The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

Average humidity
North Islesboro, ME

Average humidity - North Islesboro, ME

The months with the highest relative humidity are February and July (83%).
The month with the lowest relative humidity is November (77%).

Average rainfall
North Islesboro, ME

Average rainfall - North Islesboro, ME

The wettest month (with the highest rainfall) is December (2.72").
The driest months (with the least rainfall) are July and September (1.46").

Average rainfall days
North Islesboro, ME

Average rainfall days - North Islesboro, ME

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (7.1 days).

Average snowfall
North Islesboro, ME

Average snowfall - North Islesboro, ME

The month with the highest snowfall is January (4.57").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
North Islesboro, ME

Average snowfall days - North Islesboro, ME

The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
North Islesboro, ME

Average daylight / Average sunshine - North Islesboro, ME

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

Average sunshine days
North Islesboro, ME

Average sunshine days - North Islesboro, ME

The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is April (11.7 days).

Average UV index
North Islesboro, ME

Average UV index - North Islesboro, ME

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average visibility
North Islesboro, ME

Average visibility - North Islesboro, ME

The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).

North Islesboro, Maine, USA

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