December weather forecast
Eastport, ME

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Weather in December

December marks the onset of winter in Eastport, Maine, with the weather progressively getting colder. Snowfall is steep at a rate of 2.17" (55mm), painting the city with a pristine white blanket. The scant daylight hours, coupled with dropping temperatures, create a cozy winter ambience. Despite the cold, holiday festivities bring a warm cheer to the city. As the year comes to a close, January arrives bringing the peak of winter.

Temperature

The arrival of December corresponds with a reduction in the average high-temperature, down from November's chilly 45.1°F (7.3°C) to a wintry 36.1°F (2.3°C). Eastport registers a consistent average low-temperature of 26.6°F (-3°C) during December.

Humidity

In Eastport, the average relative humidity in December is 80%.

Rainfall

December is the month with the most rainfall in Eastport. Rain falls for 11.5 days and accumulates 3.23" (82mm) of precipitation.

Snowfall

Months with snowfall in Eastport are January through April, October through December. In Eastport, in December, during 8.2 snowfall days, 2.17" (55mm) of snow is typically accumulated. In Eastport, during the entire year, snow falls for 44.2 days and aggregates up to 12.68" (322mm) of snow.

Ocean temperature

In December, the average ocean temperature in Eastport is 45.3°F (7.4°C).
Note: Dipping into 45.3°F (7.4°C) below 50°F (10°C) needs protective wear, or you'd face cold shock and breathing issues swiftly. Meanwhile, a slight swim around 55.4°F (13°C) feels cold to the bone.

Daylight

With an average of 8h and 54min of daylight, December has the shortest days of the year in Eastport, Maine.
On the first day of the month, sunrise is at 6:46 am and sunset at 3:48 pm. On the last day of December, in Eastport, sunrise is at 7:05 am and sunset at 3:56 pm EST.

Sunshine

In December, the average sunshine in Eastport is 4h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index, 1 during December, leads to the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

How cold is it in Eastport in December?

An average high-temperature, in December, in Eastport, is 36.1°F (2.3°C) and the average low-temperature is 26.6°F (-3°C).

What is the average humidity in December in Eastport?

In Eastport, Maine, the average relative humidity in December is 80%.

What is the wettest month in Eastport?

December is the month with the most rainfall in Eastport, Maine. Rain falls for 11.5 days and accumulates 3.23" (82mm) of precipitation.

How many days does it rain in December in Eastport?

In Eastport, during December, the rain falls for 11.5 days and regularly aggregates up to 3.23" (82mm) of precipitation.

How much does it snow in Eastport in December?

In Eastport, in December, during 8.2 snowfall days, 2.17" (55mm) of snow is typically accumulated.

What is the ocean temperature in December in Eastport?

In Eastport, Maine, in December, the average water temperature is 45.3°F (7.4°C). Swimming in 45.3°F (7.4°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

What is the month with the shortest days in Eastport?

The month with the shortest days is December, with an average of 8h and 54min of daylight.

How many hours of daylight does Eastport have in December?

In December, the average day length in Eastport is 8h and 51min.

What time are sunrise and sunset in December in Eastport?

In December, on the first day of the month, sunrise is at 6:46 am and sunset at 3:48 pm. On the last day of the month, in Eastport, sunrise is at 7:05 am and sunset at 3:56 pm EST.

How long on average sun shines in December in Eastport?

The average sunshine duration in December is 4h.

When is the lowest UV index in Eastport?

December is the month with the lowest UV index, with an average maximum UV index of 1.

What is the UV index intensity in December in Eastport?

In December, the average daily maximum UV index in Eastport is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability 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 December
Eastport, ME

Average temperature in December - Eastport, ME
  • Average high temperature in December: 36.1°F

The warmest month (with the highest average high temperature) is August (67.8°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in December: 26.6°F

The month with the highest average low temperature is August (59.4°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).

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Average pressure in December
Eastport, ME

Average pressure in December - Eastport, ME
  • Average pressure in December: 29.98"Hg

The month with the highest atmospheric pressure is September (30.03"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in December
Eastport, ME

Average wind speed in December - Eastport, ME
  • Average wind speed in December: 13.6mph

The windiest month (with the highest average wind speed) is January (13.9mph).
The calmest months (with the lowest average wind speed) are July and August (8mph).

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Average humidity in December
Eastport, ME

Average humidity in December - Eastport, ME
  • Average humidity in December: 80%

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

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Average rainfall in December
Eastport, ME

Average rainfall in December - Eastport, ME
  • Average rainfall in December: 3.23"

The wettest month (with the highest rainfall) is December (3.23").
The driest month (with the least rainfall) is August (1.65").

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Average rainfall days in December
Eastport, ME

Average rainfall days in December - Eastport, ME
  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is February (7.5 days).

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Average snowfall in December
Eastport, ME

Average snowfall in December - Eastport, ME
  • Average snowfall in December: 2.17"

The month with the highest snowfall is January (2.64").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Eastport, ME

Average snowfall days in December - Eastport, ME
  • Average snowfall days in December: 8.2 days

The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average sea temperature in December
Eastport, ME

Average sea temperature in December - Eastport, ME
  • Average sea temperature in December: 45.3°F

The best month for swimming (with the highest average sea temperature) is September (55.3°F).
The coldest month (with the lowest average sea temperature) is March (38.2°F).

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Average daylight in December /
Average sunshine in December
Eastport, ME

Average daylight in December / Average sunshine in December - Eastport, ME
  • Average daylight in December: 8h and 5min

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 December: 4h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).

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Average sunshine days in December
Eastport, ME

Average sunshine days in December - Eastport, ME
  • Average sunshine days in December: 12.3 days

The month with the most sunshine days is August (19.4 days).
The month with the least sunshine days is February (10.3 days).

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Average UV index in December
Eastport, ME

Average UV index in December - Eastport, ME
  • Average UV index in December: 1

The months with the highest UV index are July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in December
Eastport, ME

Average cloud cover in December - Eastport, ME
  • Average cloud cover in December: 58

The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 34).

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Average visibility in December
Eastport, ME

Average visibility in December - Eastport, ME
  • Average visibility in December: 6mi

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).

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Eastport, Maine, USA

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