December weather forecast and climate
Valdez, AK

Lake water and grown-in surface vegetation in Valdez Province, Alaska
Lake water and grown-in surface vegetation in Valdez Province, Alaska

Weather in December

December, the first month of the winter, in Valdez, is still a freezing cold month, with average temperature fluctuating between 12.4°F (-10.9°C) and 20.1°F (-6.6°C).

Temperature

In December, the average high-temperature is essentially the same as in November - a still freezing cold 20.1°F (-6.6°C). In Valdez, the average low-temperature is 12.4°F (-10.9°C).

Humidity

In Valdez, Alaska, the average relative humidity is 87%.

Rainfall

The month with the most rainfall is December when the rain falls for 10.1 days and typically aggregates up to 7.44" (189mm) of precipitation.

Snowfall

Months with snowfall in Valdez are January through May, September through December. The month with the most snowfall is December when snow falls for 17.8 days and typically aggregates up to 26.73" (679mm) of snow.

Ocean temperature

In Valdez, the average seawater temperature is 42.6°F (5.9°C).
Note: Swimming in 42.6°F (5.9°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

December has the shortest days of the year in Valdez, with an average of 5.7h of daylight.

Sunshine

December has the least sunshine of the year in Valdez, with an average of 2.8h of sunshine.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Valdez. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: In December, the average maximum UV index of 1 translate into the following recommendations:
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 Valdez?

The average high-temperature, in December, in Valdez, is 20.1°F (-6.6°C), while the average low-temperature is 12.4°F (-10.9°C).

What is the average humidity in December in Valdez?

The average relative humidity in December in Valdez is 87%.

How many days does it rain in December in Valdez?

In Valdez, Alaska, in December, it is raining for 10.1 days, with typically 7.44" (189mm) of accumulated precipitation.

What is the wettest month in Valdez?

The month with the most rainfall in Valdez is December when the rain falls for 10.1 days and typically aggregates up to 7.44" (189mm) of precipitation.

How many days does it snow in December in Valdez?

In Valdez, Alaska, in December, snow falls for 17.8 days, with typically accumulated 26.73" (679mm) of snow.

What is the snowiest month in Valdez?

The month with the most snowfall is December when snow falls for 17.8 days and typically aggregates up to 26.73" (679mm) of snow.

What is the water temperature in December in Valdez?

In December, the average ocean temperature in Valdez is 42.6°F (5.9°C). Swimming in 42.6°F (5.9°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

What is the month with the shortest days in Valdez?

With an average of 5.7h of daylight, December has the shortest days of the year in Valdez, Alaska.

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

The average length of the day in December in Valdez is 5.7h.

What is the month with the least sunshine in Valdez?

With an average of 2.8h of sunshine, December has the least sunshine of the year in Valdez, Alaska.

How many hours of sunshine does Valdez have in December?

The average sunshine in December in Valdez is 2.8h.

When is the lowest UV index in Valdez?

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Valdez.

What is the UV index reading in December in Valdez?

The average daily maximum UV index in December in Valdez, Alaska, is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in December
Valdez, AK

Average temperature in December - Valdez, AK
  • Average high temperature in December: 20.1°F

The warmest month (with the highest average high temperature) is July (53.2°F).
The month with the lowest average high temperature is January (18°F).

  • Average low temperature in December: 12.4°F

The month with the highest average low temperature is July (43.2°F).
The coldest month (with the lowest average low temperature) is January (10°F).

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Average pressure in December
Valdez, AK

Average pressure in December - Valdez, AK
  • Average pressure in December: 29.71"

The month with the highest atmospheric pressure is July (29.98").
The month with the lowest atmospheric pressure is November (29.69").

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Average wind speed in December
Valdez, AK

Average wind speed in December - Valdez, AK
  • Average wind speed in December: 7.2mph

The windiest month (with the highest average wind speed) is November (8.1mph).
The calmest month (with the lowest average wind speed) is July (3.7mph).

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Average humidity in December
Valdez, AK

Average humidity in December - Valdez, AK
  • Average humidity in December: 87%

Months with the highest relative humidity are January and April (88%).
Months with the lowest relative humidity are May, June, July and November (83%).

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Average rainfall in December
Valdez, AK

Average rainfall in December - Valdez, AK
  • Average rainfall in December: 7.44"

The wettest month (with the highest rainfall) is December (7.44").
The driest month (with the least rainfall) is June (1.93").

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Average rainfall days in December
Valdez, AK

Average rainfall days in December - Valdez, AK
  • Average rainfall days in December: 10.1 days

The month with the highest number of rainy days is August (18.7 days).
The month with the least rainy days is February (6.2 days).

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Average snowfall in December
Valdez, AK

Average snowfall in December - Valdez, AK
  • Average snowfall in December: 26.73"

The month with the highest snowfall is December (26.73").
Months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Valdez, AK

Average snowfall days in December - Valdez, AK
  • Average snowfall days in December: 17.8 days

The month with the highest number of snowfall days is December (17.8 days).
Months with the least snowfall days are June, July and August (0 days).

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Average sea temperature in December
Valdez, AK

Average sea temperature in December - Valdez, AK
  • Average sea temperature in December: 42.6°F

The best month for swimming (with the highest average sea temperature) is July (56.4°F).
The coldest month (with the lowest average sea temperature) is March (38.9°F).

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

Average daylight in December / Average sunshine in December - Valdez, AK
  • Average daylight in December: 5.7h

The month with the longest days is June (Average daylight: 19.2h).
The month with the shortest days is December (Average daylight: 5.7h).

  • Average sunshine in December: 2.8h

The month with the most sunshine is July (Average sunshine: 9.5h).
The month with the least sunshine is December (Average sunshine: 2.8h).

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Average sunshine days in December
Valdez, AK

Average sunshine days in December - Valdez, AK
  • Average sunshine days in December: 9.7 days

Months with the most sunshine days are January and May (12.3 days).
The month with the least sunshine days is December (9.7 days).

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Average UV index in December
Valdez, AK

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

Months with the highest UV index are June and July (UV index 3).
Months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in December
Valdez, AK

Average cloud cover in December - Valdez, AK
  • Average cloud cover in December: 58

The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 50).

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Average visibility in December
Valdez, AK

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

The month with the highest visibility is June (6mi).
Months with the lowest visibility are January, February and April (4mi).

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