December weather forecast and climate
Copperville, AK

Weather in December

The first month of the winter, December, is also a frigid cold month in Copperville, Alaska, with average temperature fluctuating between 0.9°F (-17.3°C) and 11.5°F (-11.4°C).

Temperature

In December, the average high-temperature is practically the same as in November - an extremely cold 11.5°F (-11.4°C). In Copperville, Alaska, in December, the average low-temperature is 0.9°F (-17.3°C).

Humidity

In December, the average relative humidity in Copperville, Alaska, is 89%.

Rainfall

In Copperville, during December, the rain falls for 5.5 days and regularly aggregates up to 0.59" (15mm) of precipitation. In Copperville, during the entire year, the rain falls for 81.1 days and collects up to 5.71" (145mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. The month with the most snowfall in Copperville is December when snow falls for 11.2 days and typically aggregates up to 4.57" (116mm) of snow.

Daylight

December has the shortest days of the year, with an average of 5.3h of daylight.

Sunshine

January and December, with an average of 3.9h of sunshine, are months with the least sunshine.

UV index

Months with the lowest UV index in Copperville are January through April, September through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 2 transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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 Copperville?

In December, in Copperville, the average high-temperature is 11.5°F (-11.4°C), and the average low-temperature is 0.9°F (-17.3°C).

What is the average humidity in December in Copperville?

The average relative humidity in December in Copperville is 89%.

How many days does it rain in December in Copperville?

In Copperville, in December, it is raining for 5.5 days, with typically 0.59" (15mm) of accumulated precipitation.

How much does it snow in Copperville in December?

In Copperville, during December, snow falls for 11.2 days and regularly aggregates up to 4.57" (116mm) of snow.

What is the snowiest month in Copperville?

December is the month with the most snowfall in Copperville, Alaska. Snow falls for 11.2 days and accumulates 4.57" (116mm) of snow.

What is the month with the shortest days in Copperville?

December has the shortest days of the year in Copperville, with an average of 5.3h of daylight.

How many hours of daylight does Copperville have in December?

In Copperville, Alaska, the average length of the day in December is 5.3h.

What is the month with the least sunshine in Copperville?

Months with the least sunshine in Copperville are January and December, with an average of 3.9h of sunshine.

How long on average sun shines in December in Copperville?

In Copperville, Alaska, the average sunshine in December is 3.9h.

When is the lowest UV index in Copperville?

Months with the lowest UV index are January through April, September through December, with an average maximum UV index of 2.

What is the UV index intensity in December in Copperville?

In Copperville, Alaska, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to the Sun's UV rays.

Average temperature in December
Copperville, AK

Average temperature in December - Copperville, AK
  • Average high temperature in December: 11.5°F

The warmest month (with the highest average high temperature) is July (67.5°F).
The month with the lowest average high temperature is January (9.1°F).

  • Average low temperature in December: 0.9°F

The month with the highest average low temperature is July (47.5°F).
The coldest month (with the lowest average low temperature) is January (-1.8°F).

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Average pressure in December
Copperville, AK

Average pressure in December - Copperville, AK
  • Average pressure in December: 29.78"

The month with the highest atmospheric pressure is July (29.95").
Months with the lowest atmospheric pressure are September, October, November and December (29.78").

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Average wind speed in December
Copperville, AK

Average wind speed in December - Copperville, AK
  • Average wind speed in December: 4.5mph

The windiest month (with the highest average wind speed) is June (6.2mph).
The calmest months (with the lowest average wind speed) are January and December (4.5mph).

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Average humidity in December
Copperville, AK

Average humidity in December - Copperville, AK
  • Average humidity in December: 89%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is June (57%).

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Average rainfall in December
Copperville, AK

Average rainfall in December - Copperville, AK
  • Average rainfall in December: 0.59"

The wettest month (with the highest rainfall) is August (0.91").
The driest month (with the least rainfall) is April (0.2").

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Average rainfall days in December
Copperville, AK

Average rainfall days in December - Copperville, AK
  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is August (11.3 days).
Months with the least rainy days are February and November (3.7 days).

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Average snowfall in December
Copperville, AK

Average snowfall in December - Copperville, AK
  • Average snowfall in December: 4.57"

The month with the highest snowfall is December (4.57").
Months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Copperville, AK

Average snowfall days in December - Copperville, AK
  • Average snowfall days in December: 11.2 days

The month with the highest number of snowfall days is December (11.2 days).
Months with the least snowfall days are June and July (0 days).

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

Average daylight in December / Average sunshine in December - Copperville, AK
  • Average daylight in December: 5.3h

The month with the longest days is June (Average daylight: 19.6h).
The month with the shortest days is December (Average daylight: 5.3h).

  • Average sunshine in December: 3.9h

The month with the most sunshine is June (Average sunshine: 14.2h).
Months with the least sunshine are January and December (Average sunshine: 3.9).

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Average sunshine days in December
Copperville, AK

Average sunshine days in December - Copperville, AK
  • Average sunshine days in December: 20.4 days

The month with the most sunshine days is March (24.2 days).
The month with the least sunshine days is August (17.3 days).

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Average UV index in December
Copperville, AK

Average UV index in December - Copperville, AK
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 5).
Months with the lowest UV index are January, February, March, April, September, October, November and December (UV index 2).

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Average cloud cover in December
Copperville, AK

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

The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 33).

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Average visibility in December
Copperville, AK

Average visibility in December - Copperville, 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 and March (4mi).

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