January weather forecast
Islesboro, ME

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Weather in January

January, like December, is another subzero cold winter month in Islesboro, Maine, with temperature in the range of an average high of 28.4°F (-2°C) and an average low of 16.2°F (-8.8°C).

Temperature

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

Humidity

In January, the average relative humidity is 82%.

Rainfall

In Islesboro, during January, the rain falls for 7.3 days and regularly aggregates up to 1.93" (49mm) of precipitation. In Islesboro, during the entire year, the rain falls for 141.1 days and collects up to 24.29" (617mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. January is the month with the most snowfall. Snow falls for 10.1 days and accumulates 4.57" (116mm) of snow.

Daylight

In January, the average length of the day is 9h and 19min.
On the first day of the month, sunrise is at 7:11 am and sunset at 4:06 pm. On the last day of January, sunrise is at 6:54 am and sunset at 4:43 pm EST.

Sunshine

In Islesboro, the average sunshine in January is 4.7h.

UV index

The months with the lowest UV index in Islesboro are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.
Note: During January, 2 as the daily maximum UV index converts into the following advice:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.

Frequently asked questions

What time of the year is the coldest?

January, on average, is the coldest month, registering a high temperature of 28.4°F (-2°C) and a low of 16.2°F (-8.8°C).

How cold is it in January?

The average high-temperature and low-temperature during January are 28.4°F (-2°C) and 16.2°F (-8.8°C) respectively.

What is the average humidity in January?

The average relative humidity in January is 82%.

How many days does it rain in January?

In Islesboro, in January, it is raining for 7.3 days, with typically 1.93" (49mm) of accumulated precipitation.

What is the snowiest month?

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 much does it snow in January?

In Islesboro, in January, during 10.1 snowfall days, 4.57" (116mm) of snow is typically accumulated.

How many hours of daylight does Islesboro have in January?

The average day length in January is 9h and 19min.

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 7:11 am and sunset at 4:06 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 4:43 pm EST.

How many hours of sunshine does Islesboro have in January?

In Islesboro, the average sunshine duration in January is 4.7h.

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.

What is the UV index intensity in January in Islesboro?

In January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Islesboro, ME

Average temperature in January - Islesboro, ME
  • Average high temperature in January: 28.4°F

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).

  • Average low temperature in January: 16.2°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 in January
Islesboro, ME

Average pressure in January - Islesboro, ME
  • Average pressure in January: 29.96"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 in January
Islesboro, ME

Average wind speed in January - Islesboro, ME
  • Average wind speed in January: 9.9mph

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 in January
Islesboro, ME

Average humidity in January - Islesboro, ME
  • Average humidity in January: 82%

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

Average rainfall in January
Islesboro, ME

Average rainfall in January - Islesboro, ME
  • Average rainfall in January: 1.93"

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 in January
Islesboro, ME

Average rainfall days in January - Islesboro, ME
  • Average rainfall days in January: 7.3 days

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 in January
Islesboro, ME

Average snowfall in January - Islesboro, ME
  • Average snowfall in January: 4.57"

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 in January
Islesboro, ME

Average snowfall days in January - Islesboro, ME
  • Average snowfall days in January: 10.1 days

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 in January /
Average sunshine in January
Islesboro, ME

Average daylight in January / Average sunshine in January - Islesboro, ME
  • Average daylight in January: 9h and 2min

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).

  • Average sunshine in January: 4h and 4min

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 in January
Islesboro, ME

Average sunshine days in January - Islesboro, ME
  • Average sunshine days in January: 16.9 days

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 in January
Islesboro, ME

Average UV index in January - Islesboro, ME
  • Average UV index in January: 2

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 cloud cover in January
Islesboro, ME

Average cloud cover in January - Islesboro, ME
  • Average cloud cover in January: 51

The month with the most cloud cover is March (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 37).

Average visibility in January
Islesboro, ME

Average visibility in January - Islesboro, ME
  • Average visibility in January: 6mi

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).

Islesboro, Maine, USA

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