December weather forecast
Mendeltna, AK

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Weather in December

The first month of the winter, December, is still an extremely cold month in Mendeltna, Alaska, with an average temperature ranging between max 8.1°F (-13.3°C) and min -2.9°F (-19.4°C).

Temperature

The commencement of December notes an average high-temperature of a still frigid cold 8.1°F (-13.3°C), exhibiting little difference from the previous month. Mendeltna's temperature tends to fall to an average low of -2.9°F (-19.4°C) during the nights of December.

Humidity

The months with the highest humidity are March and December, with an average relative humidity of 90%.

Rainfall

In Mendeltna, Alaska, in December, it is raining for 11.1 days, with typically 1.81" (46mm) of accumulated precipitation. In Mendeltna, during the entire year, the rain falls for 165.3 days and collects up to 17.99" (457mm) of precipitation.

Snowfall

Months with snowfall are January through June, August through December. December is the month with the most snowfall in Mendeltna. Snow falls for 22.3 days and accumulates 14.49" (368mm) of snow.

Daylight

December has the shortest days of the year in Mendeltna, with an average of 5h and 18min of daylight.
On the first day of December in Mendeltna, sunrise is at 9:41 am and sunset at 3:28 pm. On the last day of the month, sunrise is at 10:09 am and sunset at 3:29 pm AKST.

Sunshine

December has the least sunshine of the year, with an average of 3.7h of sunshine.

UV index

The months with the lowest UV index are January, April, September through December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 1 suggests this advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
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Frequently asked questions

How cold is it in Mendeltna in December?

An average high-temperature, in December, in Mendeltna, is 8.1°F (-13.3°C) and the average low-temperature is -2.9°F (-19.4°C).

What is the most humid month in Mendeltna?

The months with the highest humidity in Mendeltna are March and December, with an average relative humidity of 90%.

What is the average humidity in December in Mendeltna?

In Mendeltna, the average relative humidity in December is 90%.

How many days does it rain in December in Mendeltna?

In Mendeltna, Alaska, during December, the rain falls for 11.1 days and regularly aggregates up to 1.81" (46mm) of precipitation.

When does it snow the most in Mendeltna?

December is the month with the most snowfall in Mendeltna. Snow falls for 22.3 days and accumulates 14.49" (368mm) of snow.

How much does it snow in Mendeltna in December?

In December, it is snowing for 22.3 days. Throughout December, 14.49" (368mm) of snow is accumulated.

What is the month with the shortest days in Mendeltna?

December has the shortest days of the year, with an average of 5h and 18min of daylight.

What is the average length of the day in December in Mendeltna?

In December, the average day length is 5h and 19min.

What time are sunrise and sunset in December in Mendeltna?

On the first day of December in Mendeltna, sunrise is at 9:41 am and sunset at 3:28 pm. On the last day of the month, sunrise is at 10:09 am and sunset at 3:29 pm AKST.

What is the month with the least sunshine in Mendeltna?

The month with the least sunshine in Mendeltna, Alaska, is December, with an average of 3.7h of sunshine.

How long on average sun shines in December in Mendeltna?

In Mendeltna, Alaska, the average sunshine duration in December is 3.7h.

When is the lowest UV index in Mendeltna?

The months with the lowest UV index in Mendeltna, Alaska, are January, April, September through December, with an average maximum UV index of 1.

What is the UV index intensity in December in Mendeltna?

The average daily maximum UV index in December is 1. A UV Index 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 December
Mendeltna, AK

Average temperature in December - Mendeltna, AK
  • Average high temperature in December: 8.1°F

The warmest month (with the highest average high temperature) is July (57.7°F).
The month with the lowest average high temperature is January (6.3°F).

  • Average low temperature in December: -2.9°F

The month with the highest average low temperature is July (43.7°F).
The coldest month (with the lowest average low temperature) is January (-5.6°F).

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Average pressure in December
Mendeltna, AK

Average pressure in December - Mendeltna, AK
  • Average pressure in December: 29.74"Hg

The month with the highest atmospheric pressure is July (29.96"Hg).
The months with the lowest atmospheric pressure are November and December (29.74"Hg).

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Average wind speed in December
Mendeltna, AK

Average wind speed in December - Mendeltna, AK
  • Average wind speed in December: 4.2mph

The windiest month (with the highest average wind speed) is June (5mph).
The calmest month (with the lowest average wind speed) is March (3.9mph).

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Average humidity in December
Mendeltna, AK

Average humidity in December - Mendeltna, AK
  • Average humidity in December: 90%

The months with the highest relative humidity are March and December (90%).
The month with the lowest relative humidity is June (64%).

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Average rainfall in December
Mendeltna, AK

Average rainfall in December - Mendeltna, AK
  • Average rainfall in December: 1.81"

The wettest month (with the highest rainfall) is August (2.01").
The driest month (with the least rainfall) is April (0.83").

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Average rainfall days in December
Mendeltna, AK

Average rainfall days in December - Mendeltna, AK
  • Average rainfall days in December: 11.1 days

The month with the highest number of rainy days is August (20.8 days).
The month with the least rainy days is February (9.1 days).

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Average snowfall in December
Mendeltna, AK

Average snowfall in December - Mendeltna, AK
  • Average snowfall in December: 14.49"

The month with the highest snowfall is December (14.49").
The month with the least snowfall is July (0").

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Average snowfall days in December
Mendeltna, AK

Average snowfall days in December - Mendeltna, AK
  • Average snowfall days in December: 22.3 days

The month with the highest number of snowfall days is December (22.3 days).
The month with the least snowfall days is July (0 days).

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Average daylight in December /
Average sunshine in December
Mendeltna, AK

Average daylight in December / Average sunshine in December - Mendeltna, AK
  • Average daylight in December: 5h and 2min

The month with the longest days is June (Average daylight: 19h and 36min).
The month with the shortest days is December (Average daylight: 5h and 18min).

  • Average sunshine in December: 3h and 4min

The month with the most sunshine is June (Average sunshine: 12h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 42min).

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Average sunshine days in December
Mendeltna, AK

Average sunshine days in December - Mendeltna, AK
  • Average sunshine days in December: 7.6 days

The month with the most sunshine days is May (10.7 days).
The month with the least sunshine days is June (6.8 days).

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Average UV index in December
Mendeltna, AK

Average UV index in December - Mendeltna, AK
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, April, September, October, November and December (UV index 1).

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Average cloud cover in December
Mendeltna, AK

Average cloud cover in December - Mendeltna, AK
  • Average cloud cover in December: 47

The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 37).

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Average visibility in December
Mendeltna, AK

Average visibility in December - Mendeltna, AK
  • Average visibility in December: 4mi

The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).

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Mendeltna, Alaska, USA

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