January weather forecast
Grand Isle, ME

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Weather in January

January, the same as December, in Grand Isle, Maine, is another subzero cold winter month, with an average temperature varying between 18°F (-7.8°C) and 2.8°F (-16.2°C).

Temperature

Grand Isle witnesses the coldest weather in January, with temperatures averaging a high of 18°F (-7.8°C) and a low of 2.8°F (-16.2°C).

Humidity

In January, the average relative humidity is 93%.

Rainfall

In Grand Isle, in January, it is raining for 4.3 days, with typically 2.48" (63mm) of accumulated precipitation. Throughout the year, in Grand Isle, Maine, there are 140.8 rainfall days, and 30.12" (765mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. January is the month with the most snowfall. Snow falls for 21.3 days and accumulates 14.92" (379mm) of snow.

Daylight

In January, the average length of the day in Grand Isle is 8h and 59min.
On the first day of the month, sunrise is at 7:19 am and sunset at 3:52 pm. On the last day of January, sunrise is at 6:59 am and sunset at 4:32 pm EST.

Sunshine

The average sunshine in January is 2.5h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 1 in January interprets into the following advice:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.

Frequently asked questions

What are the coldest months?

Grand Isle's coldest weather arrives in January, when temperatures average a high of 18°F (-7.8°C) and a low of 2.8°F (-16.2°C).

How cold is it in January?

During January, Grand Isle experiences an average high-temperature of 18°F (-7.8°C) and a low-temperature of 2.8°F (-16.2°C).

What is the average humidity in January?

The average relative humidity in January is 93%.

How much does it rain in January?

In Grand Isle, in January, it is raining for 4.3 days, with typically 2.48" (63mm) of accumulated precipitation.

What is the snowiest month?

The month with the most snowfall is January, when snow falls for 21.3 days and typically aggregates up to 14.92" (379mm) of snow.

How many days does it snow in January?

In Grand Isle, Maine, in January, during 21.3 snowfall days, 14.92" (379mm) of snow is typically accumulated.

How many hours of daylight does Grand Isle have in January?

In Grand Isle, the average day length in January is 8h and 59min.

When is the sunrise / sunset in January in Grand Isle?

On the first day of January, sunrise is at 7:19 am and sunset at 3:52 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 4:32 pm EST.

How many hours of sunshine does Grand Isle have in January?

In Grand Isle, the average sunshine duration in January is 2.5h.

What is the month with the lowest UV index?

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 1.

What is the UV index intensity in January?

The average daily maximum UV index in January is 1. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to UV radiation.
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
Grand Isle, ME

Average temperature in January - Grand Isle, ME
  • Average high temperature in January: 18°F

The warmest month (with the highest average high temperature) is July (74.3°F).
The month with the lowest average high temperature is January (18°F).

  • Average low temperature in January: 2.8°F

The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is January (2.8°F).

Average pressure in January
Grand Isle, ME

Average pressure in January - Grand Isle, ME
  • Average pressure in January: 29.94"Hg

The months with the highest atmospheric pressure are March, September and November (30.01"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in January
Grand Isle, ME

Average wind speed in January - Grand Isle, ME
  • Average wind speed in January: 8.2mph

The windiest months (with the highest average wind speed) are January and February (8.2mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

Average humidity in January
Grand Isle, ME

Average humidity in January - Grand Isle, ME
  • Average humidity in January: 93%

The month with the highest relative humidity is March (94%).
The month with the lowest relative humidity is May (76%).

Average rainfall in January
Grand Isle, ME

Average rainfall in January - Grand Isle, ME
  • Average rainfall in January: 2.48"

The wettest month (with the highest rainfall) is April (2.95").
The driest month (with the least rainfall) is February (1.97").

Average rainfall days in January
Grand Isle, ME

Average rainfall days in January - Grand Isle, ME
  • Average rainfall days in January: 4.3 days

The month with the highest number of rainy days is July (17.1 days).
The months with the least rainy days are January and February (4.3 days).

Average snowfall in January
Grand Isle, ME

Average snowfall in January - Grand Isle, ME
  • Average snowfall in January: 14.92"

The month with the highest snowfall is January (14.92").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Grand Isle, ME

Average snowfall days in January - Grand Isle, ME
  • Average snowfall days in January: 21.3 days

The month with the highest number of snowfall days is January (21.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Grand Isle, ME

Average daylight in January / Average sunshine in January - Grand Isle, ME
  • Average daylight in January: 9h and 0min

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

  • Average sunshine in January: 2h and 3min

The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 2h and 6min).

Average sunshine days in January
Grand Isle, ME

Average sunshine days in January - Grand Isle, ME
  • Average sunshine days in January: 10.3 days

The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is April (7.9 days).

Average UV index in January
Grand Isle, ME

Average UV index in January - Grand Isle, ME
  • Average UV index in January: 1

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).

Average cloud cover in January
Grand Isle, ME

Average cloud cover in January - Grand Isle, ME
  • Average cloud cover in January: 74

The month with the most cloud cover is February (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 42).

Average visibility in January
Grand Isle, ME

Average visibility in January - Grand Isle, ME
  • Average visibility in January: 4mi

The months with the highest visibility are May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March, April and December (4mi).

Grand Isle, Maine, USA

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