December weather forecast
Port Alsworth, AK

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Weather in December

December, the first month of the winter in Port Alsworth, is still a freezing cold month, with an average temperature varying between 17.1°F (-8.3°C) and 6.8°F (-14°C).

Temperature

December observes an average high-temperature of a still freezing cold 17.1°F (-8.3°C), marking an insignificant difference from November's 22.1°F (-5.5°C). Port Alsworth encounters a steady low-temperature average of 6.8°F (-14°C) throughout the month of December.

Humidity

In Port Alsworth, Alaska, the average relative humidity in December is 87%.

Rainfall

In Port Alsworth, Alaska, in December, it is raining for 8.4 days, with typically 2.68" (68mm) of accumulated precipitation. In Port Alsworth, during the entire year, the rain falls for 190.3 days and collects up to 31.5" (800mm) of precipitation.

Snowfall

January through May, August through December are months with snowfall in Port Alsworth, Alaska. The month with the most snowfall is December, when snow falls for 18.5 days and typically aggregates up to 15.63" (397mm) of snow.

Daylight

December has the shortest days of the year in Port Alsworth, with an average of 6h and 0min of daylight.
On the first day of the month, sunrise is at 9:55 am and sunset at 4:17 pm. On the last day of December, sunrise is at 10:21 am and sunset at 4:20 pm AKST.

Sunshine

With an average of 3.3h of sunshine, December has the least sunshine of the year in Port Alsworth.

UV index

The months with the lowest UV index in Port Alsworth are November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 1 suggests this advice:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
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Frequently asked questions

How cold is it in Port Alsworth in December?

Port Alsworth in December has an average high-temperature of 17.1°F (-8.3°C) and an average low-temperature of 6.8°F (-14°C).

What is the average humidity in December in Port Alsworth?

In December, the average relative humidity in Port Alsworth, Alaska, is 87%.

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

In Port Alsworth, Alaska, in December, during 8.4 rainfall days, 2.68" (68mm) of precipitation is typically accumulated.

When does it snow the most in Port Alsworth?

December is the month with the most snowfall in Port Alsworth, Alaska. Snow falls for 18.5 days and accumulates 15.63" (397mm) of snow.

How many days does it snow in December in Port Alsworth?

In Port Alsworth, Alaska, in December, snow falls for 18.5 days, with typically accumulated 15.63" (397mm) of snow.

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

With an average of 6h and 0min of daylight, December has the shortest days of the year in Port Alsworth, Alaska.

What is the average length of the day in December in Port Alsworth?

In Port Alsworth, Alaska, the average day length in December is 5h and 58min.

When are sunrise and sunset in December in Port Alsworth?

In December, on the first day of the month, sunrise is at 9:55 am and sunset at 4:17 pm. On the last day of the month, sunrise is at 10:21 am and sunset at 4:20 pm AKST.

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

The month with the least sunshine in Port Alsworth is December, with an average of 3.3h of sunshine.

How many hours of sunshine does Port Alsworth have in December?

In Port Alsworth, the average sunshine duration in December is 3.3h.

What are the months with the lowest UV index in Port Alsworth?

The months with the lowest UV index in Port Alsworth, Alaska, are November and December, with an average maximum UV index of 1.

What is the UV index intensity in December in Port Alsworth?

In Port Alsworth, Alaska, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a low health risk 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 Alsworth, AK

Average temperature in December - Port Alsworth, AK
  • Average high temperature in December: 17.1°F

The warmest month (with the highest average high temperature) is July (58.3°F).
The month with the lowest average high temperature is January (15.4°F).

  • Average low temperature in December: 6.8°F

The month with the highest average low temperature is July (46°F).
The coldest month (with the lowest average low temperature) is January (5.2°F).

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Average pressure in December
Port Alsworth, AK

Average pressure in December - Port Alsworth, AK
  • Average pressure in December: 29.65"Hg

The month with the highest atmospheric pressure is July (29.95"Hg).
The month with the lowest atmospheric pressure is December (29.65"Hg).

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Average wind speed in December
Port Alsworth, AK

Average wind speed in December - Port Alsworth, AK
  • Average wind speed in December: 6.8mph

The windiest month (with the highest average wind speed) is December (6.8mph).
The calmest month (with the lowest average wind speed) is June (5mph).

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Average humidity in December
Port Alsworth, AK

Average humidity in December - Port Alsworth, AK
  • Average humidity in December: 87%

The month with the highest relative humidity is March (90%).
The months with the lowest relative humidity are May and June (74%).

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Average rainfall in December
Port Alsworth, AK

Average rainfall in December - Port Alsworth, AK
  • Average rainfall in December: 2.68"

The wettest month (with the highest rainfall) is September (4.21").
The driest month (with the least rainfall) is January (1.42").

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Average rainfall days in December
Port Alsworth, AK

Average rainfall days in December - Port Alsworth, AK
  • Average rainfall days in December: 8.4 days

The month with the highest number of rainy days is August (23.6 days).
The month with the least rainy days is December (8.4 days).

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Average snowfall in December
Port Alsworth, AK

Average snowfall in December - Port Alsworth, AK
  • Average snowfall in December: 15.63"

The month with the highest snowfall is December (15.63").
The months with the least snowfall are June and July (0").

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Average snowfall days in December
Port Alsworth, AK

Average snowfall days in December - Port Alsworth, AK
  • Average snowfall days in December: 18.5 days

The month with the highest number of snowfall days is December (18.5 days).
The months with the least snowfall days are June and July (0 days).

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

Average daylight in December / Average sunshine in December - Port Alsworth, AK
  • Average daylight in December: 6h and 0min

The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 6h and 0min).

  • Average sunshine in December: 3h and 2min

The month with the most sunshine is May (Average sunshine: 9h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).

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Average sunshine days in December
Port Alsworth, AK

Average sunshine days in December - Port Alsworth, AK
  • Average sunshine days in December: 10.8 days

The month with the most sunshine days is January (12.7 days).
The month with the least sunshine days is June (4.8 days).

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Average UV index in December
Port Alsworth, AK

Average UV index in December - Port Alsworth, AK
  • Average UV index in December: 1

The months with the highest UV index are May, June and July (UV index 3).
The months with the lowest UV index are November and December (UV index 1).

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Average cloud cover in December
Port Alsworth, AK

Average cloud cover in December - Port Alsworth, AK
  • Average cloud cover in December: 53

The month with the most cloud cover is August (Cloud cover 63).
The month with the least cloud cover is January (Cloud cover 47).

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Average visibility in December
Port Alsworth, AK

Average visibility in December - Port Alsworth, AK
  • Average visibility in December: 5mi

The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are March and April (4mi).

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Port Alsworth, Alaska, USA

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