December weather forecast
Port Lions, AK

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Weather in December

The first month of the winter, December, is also a wintry month in Port Lions, Alaska, with an average temperature ranging between min 32°F (0°C) and max 36.9°F (2.7°C).

Temperature

Port Lions indicates an average high-temperature of a still icy 36.9°F (2.7°C) in December, showing minor variation from November's 39.9°F (4.4°C). Port Lions's average temperature throughout the nights in December exhibits a minor decrease from daytime highs, stabilizing at a still icy 32°F (0°C).

Humidity

In Port Lions, the average relative humidity in December is 82%.

Rainfall

In Port Lions, in December, during 14.8 rainfall days, 4.29" (109mm) of precipitation is typically accumulated. Throughout the year, there are 171.2 rainfall days, and 37.32" (948mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall in Port Lions. In Port Lions, during December, snow falls for 5.1 days and regularly aggregates up to 2.32" (59mm) of snow. In Port Lions, during the entire year, snow falls for 35.1 days and aggregates up to 13.74" (349mm) of snow.

Daylight

December has the shortest days of the year in Port Lions, with an average of 6h and 36min of daylight.
On the first day of the month, sunrise is at 9:31 am and sunset at 4:29 pm. On the last day of December, sunrise is at 9:55 am and sunset at 4:34 pm AKST.

Sunshine

January and December, with an average of 2.6h of sunshine, are months with the least sunshine.

UV index

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

How cold is it in Port Lions in December?

Port Lions in December has an average high-temperature of 36.9°F (2.7°C) and an average low-temperature of 32°F (0°C).

What is the average humidity in December in Port Lions?

In Port Lions, Alaska, the average relative humidity in December is 82%.

How many days does it rain in December in Port Lions?

In Port Lions, Alaska, during December, the rain falls for 14.8 days and regularly aggregates up to 4.29" (109mm) of precipitation.

How much does it snow in Port Lions in December?

In Port Lions, Alaska, in December, during 5.1 snowfall days, 2.32" (59mm) of snow is typically accumulated.

What is the month with the shortest days in Port Lions?

December has the shortest days of the year in Port Lions, with an average of 6h and 36min of daylight.

How many hours of daylight does Port Lions have in December?

In December, the average day length in Port Lions, Alaska, is 6h and 38min.

What time are sunrise and sunset in December in Port Lions?

In December, on the first day of the month, sunrise is at 9:31 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 9:55 am and sunset at 4:34 pm AKST.

What is the month with the least sunshine in Port Lions?

January and December, with an average of 2.6h of sunshine, are months with the least sunshine in Port Lions, Alaska.

How long on average sun shines in December in Port Lions?

In December, the average sunshine duration in Port Lions is 2.6h.

How high is the UV index in December in Port Lions?

In Port Lions, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health threat from 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
Port Lions, AK

Average temperature in December - Port Lions, AK
  • Average high temperature in December: 36.9°F

The warmest month (with the highest average high temperature) is August (57.6°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in December: 32°F

The month with the highest average low temperature is August (50.7°F).
The coldest month (with the lowest average low temperature) is March (30.6°F).

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Average pressure in December
Port Lions, AK

Average pressure in December - Port Lions, AK
  • Average pressure in December: 29.55"Hg

The month with the highest atmospheric pressure is July (29.98"Hg).
The month with the lowest atmospheric pressure is December (29.55"Hg).

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Average wind speed in December
Port Lions, AK

Average wind speed in December - Port Lions, AK
  • Average wind speed in December: 14.2mph

The windiest month (with the highest average wind speed) is December (14.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

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Average humidity in December
Port Lions, AK

Average humidity in December - Port Lions, AK
  • Average humidity in December: 82%

The month with the highest relative humidity is July (86%).
The months with the lowest relative humidity are March and November (80%).

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Average rainfall in December
Port Lions, AK

Average rainfall in December - Port Lions, AK
  • Average rainfall in December: 4.29"

The wettest months (with the highest rainfall) are October and November (4.53").
The driest month (with the least rainfall) is July (1.85").

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Average rainfall days in December
Port Lions, AK

Average rainfall days in December - Port Lions, AK
  • Average rainfall days in December: 14.8 days

The month with the highest number of rainy days is September (17.6 days).
The month with the least rainy days is March (10.8 days).

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Average snowfall in December
Port Lions, AK

Average snowfall in December - Port Lions, AK
  • Average snowfall in December: 2.32"

The month with the highest snowfall is March (3.15").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Port Lions, AK

Average snowfall days in December - Port Lions, AK
  • Average snowfall days in December: 5.1 days

The month with the highest number of snowfall days is March (8.5 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in December /
Average sunshine in December
Port Lions, AK

Average daylight in December / Average sunshine in December - Port Lions, AK
  • Average daylight in December: 6h and 4min

The month with the longest days is June (Average daylight: 18h and 0min).
The month with the shortest days is December (Average daylight: 6h and 36min).

  • Average sunshine in December: 2h and 4min

The month with the most sunshine is July (Average sunshine: 8h and 18min).
The months with the least sunshine are January and December (Average sunshine: 2h and 36min).

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Average sunshine days in December
Port Lions, AK

Average sunshine days in December - Port Lions, AK
  • Average sunshine days in December: 11.5 days

The month with the most sunshine days is July (14.7 days).
The month with the least sunshine days is April (10.7 days).

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Average UV index in December
Port Lions, AK

Average UV index in December - Port Lions, AK
  • Average UV index in December: 2

The months with the highest UV index are June, July, August and September (UV index 3).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in December
Port Lions, AK

Average cloud cover in December - Port Lions, AK
  • Average cloud cover in December: 60

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 52).

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Average visibility in December
Port Lions, AK

Average visibility in December - Port Lions, AK
  • 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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Port Lions, Alaska, USA

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