December weather forecast
Whittier, AK

Weather in December

The first month of the winter, December, is still a freezing cold month in Whittier, Alaska, with an average temperature varying between 22.8°F (-5.1°C) and 13.6°F (-10.2°C).

Temperature

In December, the average high-temperature is practically the same as in November - a still subzero cold 22.8°F (-5.1°C). In Whittier, the average low-temperature is 13.6°F (-10.2°C).

Humidity

In December, the average relative humidity in Whittier is 91%.

Rainfall

In December, the rain falls for 11.1 days. Throughout December, 12.09" (307mm) of precipitation is accumulated. In Whittier, Alaska, during the entire year, the rain falls for 199.9 days and collects up to 94.88" (2410mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. December is the month with the most snowfall. Snow falls for 21.9 days and accumulates 46.38" (1178mm) of snow.

Daylight

With an average of 5h and 47min of daylight, December has the shortest days of the year in Whittier, Alaska.
On the first day of the month, sunrise is at 9:37 am and sunset at 3:50 pm. On the last day of December, sunrise is at 10:04 am and sunset at 3:51 pm AKST.

Sunshine

The month with the least sunshine in Whittier is December, with an average of 2h of sunshine.

UV index

January, February, April, October through December, with an average maximum UV index of 1, are months with the lowest UV index in Whittier. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 1 in December interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in Whittier?

In December, in Whittier, Alaska, the average high-temperature is 22.8°F (-5.1°C), and the average low-temperature is 13.6°F (-10.2°C).

What is the average humidity in December in Whittier?

In December, the average relative humidity in Whittier is 91%.

How many days does it rain in December in Whittier?

In Whittier, Alaska, in December, it is raining for 11.1 days, with typically 12.09" (307mm) of accumulated precipitation.

When does it snow the most in Whittier?

December is the month with the most snowfall in Whittier. Snow falls for 21.9 days and accumulates 46.38" (1178mm) of snow.

How many days does it snow in December in Whittier?

In Whittier, Alaska, during December, snow falls for 21.9 days and regularly aggregates up to 46.38" (1178mm) of snow.

What is the month with the shortest days in Whittier?

December has the shortest days of the year in Whittier, Alaska, with an average of 5h and 47min of daylight.

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

The average day length in December is 5h and 47min.

When is the sunrise / sunset in December in Whittier?

In December, on the first day of the month, sunrise is at 9:37 am and sunset at 3:50 pm. On the last day of the month, in Whittier, sunrise is at 10:04 am and sunset at 3:51 pm AKST.

What is the month with the least sunshine in Whittier?

December has the least sunshine of the year in Whittier, Alaska, with an average of 2h of sunshine.

How long on average sun shines in December in Whittier?

In December, the average sunshine duration is 2h.

When is the lowest UV index in Whittier?

January, February, April, October through December, with an average maximum UV index of 1, are months with the lowest UV index in Whittier, Alaska.

What is the UV index intensity in December in Whittier?

In December, the average daily maximum UV index is 1. A UV Index reading of 2, and below, represents a low health threat 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
Whittier, AK

Average temperature in December - Whittier, AK
  • Average high temperature in December: 22.8°F

The warmest month (with the highest average high temperature) is July (55°F).
The month with the lowest average high temperature is January (20.1°F).

  • Average low temperature in December: 13.6°F

The month with the highest average low temperature is July (44.1°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

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Average pressure in December
Whittier, AK

Average pressure in December - Whittier, AK
  • Average pressure in December: 29.66"Hg

The month with the highest atmospheric pressure is July (29.98"Hg).
The month with the lowest atmospheric pressure is November (29.65"Hg).

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Average wind speed in December
Whittier, AK

Average wind speed in December - Whittier, AK
  • Average wind speed in December: 6mph

The windiest month (with the highest average wind speed) is November (6.1mph).
The calmest month (with the lowest average wind speed) is July (4.1mph).

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Average humidity in December
Whittier, AK

Average humidity in December - Whittier, AK
  • Average humidity in December: 91%

The months with the highest relative humidity are March and April (92%).
The month with the lowest relative humidity is June (82%).

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Average rainfall in December
Whittier, AK

Average rainfall in December - Whittier, AK
  • Average rainfall in December: 12.09"

The wettest month (with the highest rainfall) is October (12.13").
The driest month (with the least rainfall) is June (3.9").

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Average rainfall days in December
Whittier, AK

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

The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is February (7.7 days).

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Average snowfall in December
Whittier, AK

Average snowfall in December - Whittier, AK
  • Average snowfall in December: 46.38"

The month with the highest snowfall is December (46.38").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Whittier, AK

Average snowfall days in December - Whittier, AK
  • Average snowfall days in December: 21.9 days

The month with the highest number of snowfall days is December (21.9 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
Whittier, AK

Average daylight in December / Average sunshine in December - Whittier, AK
  • Average daylight in December: 5h and 47min

The month with the longest days is June (Average daylight: 19h and 1min).
The month with the shortest days is December (Average daylight: 5h and 47min).

  • Average sunshine in December: 2h

The month with the most sunshine is June (Average sunshine: 8h).
The month with the least sunshine is December (Average sunshine: 2h).

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Average sunshine days in December
Whittier, AK

Average sunshine days in December - Whittier, AK
  • Average sunshine days in December: 5.7 days

The month with the most sunshine days is January (9.3 days).
The month with the least sunshine days is April (5.6 days).

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Average UV index in December
Whittier, AK

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

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

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Average cloud cover in December
Whittier, AK

Average cloud cover in December - Whittier, AK
  • Average cloud cover in December: 71

The month with the most cloud cover is December (Cloud cover 71).
The months with the least cloud cover are March and June (Cloud cover 60).

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Average visibility in December
Whittier, AK

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

The months with the highest visibility are May, June and July (5mi).
The months with the lowest visibility are January, February, March, April, August, September, October, November and December (4mi).

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