December weather forecast
Wasilla, AK

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The famed Chugach Mountain Ranges in Wasilla, Alaska
The famed Chugach Mountain Ranges in Wasilla, Alaska

Weather in December

December in Wasilla captures the essence of Alaskan winters, characterized by chilly temperatures and abundant snowfall. Snowfall sees its peak at 2.64" (67mm), perfectly creating a winter wonderland in time for the holiday season. Illuminations and decorations begin to adorn homes and streets, adding to December's festive environment. Winter sports are now in full swing, daring the bravest to venture into the cold. Despite the heavy snow and limited daylight, Wasilla remains a hub of winter activities, from ice fishing to ice skating or merely cozying up near the fireplace.

Temperature

Wasilla greets December with an average high-temperature of a still freezing cold 20.3°F (-6.5°C), marking a slight deviation from the preceding month. December witnesses a minor deviation from daytime peaks, with an average nighttime temperature of 11.3°F (-11.5°C).

Humidity

In December, the average relative humidity is 85%.

Rainfall

In Wasilla, during December, the rain falls for 8.1 days and regularly aggregates up to 0.55" (14mm) of precipitation. Throughout the year, in Wasilla, there are 124.6 rainfall days, and 7.36" (187mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. The month with the most snowfall is December, when snow falls for 8.6 days and typically aggregates up to 2.64" (67mm) of snow.

Daylight

December has the shortest days of the year, with an average of 5h and 30min of daylight.
On the first day of December, sunrise is at 9:48 am and sunset at 3:45 pm. On the last day of the month, sunrise is at 10:15 am and sunset at 3:46 pm AKST.

Sunshine

With an average of 4h of sunshine, December has the least sunshine of the year.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 1 during December leads to these advisories:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.

Frequently asked questions

How cold is it in December?

During December, Wasilla experiences an average high-temperature of 20.3°F (-6.5°C) and a low-temperature of 11.3°F (-11.5°C).

What is the average humidity in December?

In Wasilla, the average relative humidity in December is 85%.

How much does it rain in December?

In Wasilla, in December, during 8.1 rainfall days, 0.55" (14mm) of precipitation is typically accumulated.

When does it snow the most?

December is the month with the most snowfall. Snow falls for 8.6 days and accumulates 2.64" (67mm) of snow.

How much does it snow in December?

In December, it is snowing for 8.6 days. Throughout December, 2.64" (67mm) of snow is accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 5h and 30min of daylight.

How many hours of daylight does Wasilla have in December?

In Wasilla, the average day length in December is 5h and 30min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 9:48 am and sunset at 3:45 pm. On the last day of the month, sunrise is at 10:15 am and sunset at 3:46 pm AKST.

What is the month with the least sunshine?

December has the least sunshine of the year in Wasilla, with an average of 4h of sunshine.

How many hours of sunshine does Wasilla have in December?

In December, the average sunshine duration is 4h.

When is the lowest UV index?

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

What is the UV index intensity in December?

In Wasilla, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health threat from exposure to the Sun's 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
Wasilla, AK

Average temperature in December - Wasilla, AK
  • Average high temperature in December: 20.3°F

The warmest month (with the highest average high temperature) is July (63.3°F).
The month with the lowest average high temperature is January (18.3°F).

  • Average low temperature in December: 11.3°F

The month with the highest average low temperature is July (47.1°F).
The coldest month (with the lowest average low temperature) is January (8.6°F).

Average pressure in December
Wasilla, AK

Average pressure in December - Wasilla, AK
  • Average pressure in December: 29.69"Hg

The month with the highest atmospheric pressure is July (29.96"Hg).
The month with the lowest atmospheric pressure is December (29.69"Hg).

Average wind speed in December
Wasilla, AK

Average wind speed in December - Wasilla, AK
  • Average wind speed in December: 4.8mph

The windiest months (with the highest average wind speed) are January, November and December (4.8mph).
The calmest month (with the lowest average wind speed) is July (4mph).

Average humidity in December
Wasilla, AK

Average humidity in December - Wasilla, AK
  • Average humidity in December: 85%

The month with the highest relative humidity is March (87%).
The month with the lowest relative humidity is May (65%).

Average rainfall in December
Wasilla, AK

Average rainfall in December - Wasilla, AK
  • Average rainfall in December: 0.55"

The wettest month (with the highest rainfall) is August (0.94").
The driest month (with the least rainfall) is January (0.31").

Average rainfall days in December
Wasilla, AK

Average rainfall days in December - Wasilla, AK
  • Average rainfall days in December: 8.1 days

The month with the highest number of rainy days is June (14 days).
The month with the least rainy days is February (6.8 days).

Average snowfall in December
Wasilla, AK

Average snowfall in December - Wasilla, AK
  • Average snowfall in December: 2.64"

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

Average snowfall days in December
Wasilla, AK

Average snowfall days in December - Wasilla, AK
  • Average snowfall days in December: 8.6 days

The month with the highest number of snowfall days is February (9.8 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Wasilla, AK
  • Average daylight in December: 5h and 3min

The month with the longest days is June (Average daylight: 19h and 24min).
The month with the shortest days is December (Average daylight: 5h and 30min).

  • Average sunshine in December: 4h

The month with the most sunshine is May (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 4h).

Average sunshine days in December
Wasilla, AK

Average sunshine days in December - Wasilla, AK
  • Average sunshine days in December: 19.5 days

The month with the most sunshine days is January (19.9 days).
The month with the least sunshine days is June (9.3 days).

Average UV index in December
Wasilla, AK

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

The months with the highest UV index are June and July (UV index 4).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Wasilla, AK

Average cloud cover in December - Wasilla, AK
  • Average cloud cover in December: 43

The months with the most cloud cover are April and August (Cloud cover 44).
The months with the least cloud cover are January and May (Cloud cover 37).

Average visibility in December
Wasilla, AK

Average visibility in December - Wasilla, AK
  • Average visibility in December: 5mi

The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is March (4mi).

Wasilla, Alaska, USA

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