December weather forecast and climate
Port Clarence, AK

Weather in December

December, the first month of the winter, in Port Clarence, is also a subzero cold month, with average temperature ranging between min 10.8°F (-11.8°C) and max 16.7°F (-8.5°C).

Temperature

In Port Clarence, the average high-temperature in December decreases, from a subzero cold 26.4°F (-3.1°C) in November, to a still freezing cold 16.7°F (-8.5°C). In December, in Port Clarence, the average low-temperature is 10.8°F (-11.8°C).

Humidity

In Port Clarence, the average relative humidity in December is 89%.

Rainfall

In Port Clarence, Alaska, during 1.9 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. In Port Clarence, during the entire year, the rain falls for 86.5 days and collects up to 14.25" (362mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall in Port Clarence, Alaska. In Port Clarence, snow falls for 11.1 days, with typically accumulated 2.48" (63mm) of snow. Throughout the year, in Port Clarence, there are 90 snowfall days, and 20.51" (521mm) of snow is accumulated.

Daylight

With an average of 3.7h of daylight, December has the shortest days of the year.

Sunshine

In Port Clarence, the average sunshine is 1.1h.

UV index

Months with the lowest UV index in Port Clarence are January through April, October through December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 1 in December transform into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. 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 Port Clarence?

In December, the average high-temperature is 16.7°F (-8.5°C), and the average low-temperature is 10.8°F (-11.8°C).

What is the average humidity in December in Port Clarence?

The average relative humidity in December in Port Clarence is 89%.

How much does it rain in Port Clarence in December?

In Port Clarence, during December, the rain falls for 1.9 days and regularly aggregates up to 1.3" (33mm) of precipitation.

How much does it snow in Port Clarence in December?

In December, in Port Clarence, Alaska, it is snowing for 11.1 days. Throughout December, 2.48" (63mm) of snow is accumulated.

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

With an average of 3.7h of daylight, December has the shortest days of the year.

How many hours of daylight does Port Clarence have in December?

In Port Clarence, the average length of the day in December is 3.7h.

How long on average sun shines in December in Port Clarence?

In December, the average sunshine in Port Clarence, Alaska, is 1.1h.

When is the lowest UV index in Port Clarence?

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

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

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

Average temperature in December
Port Clarence, AK

Average temperature in December - Port Clarence, AK
  • Average high temperature in December: 16.7°F

The warmest month (with the highest average high temperature) is August (50°F).
The month with the lowest average high temperature is January (9°F).

  • Average low temperature in December: 10.8°F

The month with the highest average low temperature is August (45.3°F).
The coldest months (with the lowest average low temperature) are February and March (1.8°F).

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Average pressure in December
Port Clarence, AK

Average pressure in December - Port Clarence, AK
  • Average pressure in December: 29.77"

The month with the highest atmospheric pressure is May (29.96").
The month with the lowest atmospheric pressure is October (29.72").

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Average wind speed in December
Port Clarence, AK

Average wind speed in December - Port Clarence, AK
  • Average wind speed in December: 17.5mph

The windiest month (with the highest average wind speed) is December (17.5mph).
The calmest month (with the lowest average wind speed) is May (12mph).

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Average humidity in December
Port Clarence, AK

Average humidity in December - Port Clarence, AK
  • Average humidity in December: 89%

The month with the highest relative humidity is March (93%).
Months with the lowest relative humidity are October and November (79%).

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Average rainfall in December
Port Clarence, AK

Average rainfall in December - Port Clarence, AK
  • Average rainfall in December: 1.3"

The wettest month (with the highest rainfall) is August (2.01").
The driest month (with the least rainfall) is January (0.67").

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Average rainfall days in December
Port Clarence, AK

Average rainfall days in December - Port Clarence, AK
  • Average rainfall days in December: 1.9 days

The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is January (1.3 days).

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Average snowfall in December
Port Clarence, AK

Average snowfall in December - Port Clarence, AK
  • Average snowfall in December: 2.48"

The month with the highest snowfall is February (3.62").
Months with the least snowfall are July and August (0").

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Average snowfall days in December
Port Clarence, AK

Average snowfall days in December - Port Clarence, AK
  • Average snowfall days in December: 11.1 days

The month with the highest number of snowfall days is April (13 days).
The month with the least snowfall days is July (0 days).

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

Average daylight in December / Average sunshine in December - Port Clarence, AK
  • Average daylight in December: 3.7h

The month with the longest days is June (Average daylight: 22h).
The month with the shortest days is December (Average daylight: 3.7h).

  • Average sunshine in December: 1.1h

The month with the most sunshine is August (Average sunshine: 5.7h).
The month with the least sunshine is June (Average sunshine: 0.6h).

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Average sunshine days in December
Port Clarence, AK

Average sunshine days in December - Port Clarence, AK
  • Average sunshine days in December: 11.2 days

The month with the most sunshine days is June (18.4 days).
The month with the least sunshine days is October (11.1 days).

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Average UV index in December
Port Clarence, AK

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

The month with the highest UV index is July (UV index 3).
Months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).

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Average cloud cover in December
Port Clarence, AK

Average cloud cover in December - Port Clarence, AK
  • Average cloud cover in December: 76

The month with the most cloud cover is February (Cloud cover 78).
The month with the least cloud cover is June (Cloud cover 52).

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Average visibility in December
Port Clarence, AK

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

Months with the highest visibility are May, June, July, August, September and October (6mi).
Months with the lowest visibility are January, February, March, April, November and December (5mi).

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