December weather forecast
Orca, AK

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Weather in December

December, the first month of the winter in Orca, is still a freezing cold month, with an average temperature varying between 26.2°F (-3.2°C) and 31.5°F (-0.3°C).

Temperature

Orca experiences a minor change to a subzero cold 31.5°F (-0.3°C) in average high-temperature during December, closely reflecting November. Orca maintains a minor drop in temperature during December nights, with averages of 26.2°F (-3.2°C).

Humidity

In December, the average relative humidity in Orca is 81%.

Rainfall

In Orca, Alaska, during December, the rain falls for 14.5 days and regularly aggregates up to 8.98" (228mm) of precipitation. Throughout the year, there are 191.3 rainfall days, and 72.4" (1839mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. December is the month with the most snowfall in Orca. Snow falls for 12.9 days and accumulates 17.76" (451mm) of snow.

Daylight

The month with the shortest days is December, with an average of 5h and 54min of daylight.
On the first day of the month, sunrise is at 9:24 am and sunset at 3:39 pm. On the last day of December, sunrise is at 9:50 am and sunset at 3:42 pm AKST.

Sunshine

The month with the least sunshine in Orca is December, with an average of 2.1h of sunshine.

UV index

November and December, with an average maximum UV index of 1, are months with the lowest UV index in Orca. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.
Note: A daily maximum UV index of 1 in December translates into the following instructions:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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Frequently asked questions

How cold is it in Orca in December?

In December, the average high-temperature and low-temperature in Orca are 31.5°F (-0.3°C) and 26.2°F (-3.2°C) respectively.

What is the average humidity in December in Orca?

In Orca, the average relative humidity in December is 81%.

How many days does it rain in December in Orca?

In Orca, Alaska, in December, during 14.5 rainfall days, 8.98" (228mm) of precipitation is typically accumulated.

When does it snow the most in Orca?

December is the month with the most snowfall in Orca. Snow falls for 12.9 days and accumulates 17.76" (451mm) of snow.

How much does it snow in Orca in December?

In December, in Orca, Alaska, it is snowing for 12.9 days. Throughout December, 17.76" (451mm) of snow is accumulated.

What is the month with the shortest days in Orca?

December has the shortest days of the year in Orca, Alaska, with an average of 5h and 54min of daylight.

How many hours of daylight does Orca have in December?

In December, the average day length is 5h and 51min.

When is the sunrise / sunset in December in Orca?

In December, on the first day of the month, sunrise is at 9:24 am and sunset at 3:39 pm. On the last day of the month, in Orca, Alaska, sunrise is at 9:50 am and sunset at 3:42 pm AKST.

What is the month with the least sunshine in Orca?

December has the least sunshine of the year in Orca, Alaska, with an average of 2.1h of sunshine.

How many hours of sunshine does Orca have in December?

In Orca, the average sunshine duration in December is 2.1h.

What is the month with the lowest UV index in Orca?

November and December, with an average maximum UV index of 1, are months with the lowest UV index in Orca, Alaska.

What is the UV index reading in December in Orca?

The average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health risk 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
Orca, AK

Average temperature in December - Orca, AK
  • Average high temperature in December: 31.5°F

The warmest month (with the highest average high temperature) is July (58.6°F).
The month with the lowest average high temperature is January (30.2°F).

  • Average low temperature in December: 26.2°F

The month with the highest average low temperature is August (50°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

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Average pressure in December
Orca, AK

Average pressure in December - Orca, AK
  • Average pressure in December: 29.68"Hg

The month with the highest atmospheric pressure is July (30"Hg).
The month with the lowest atmospheric pressure is November (29.65"Hg).

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Average wind speed in December
Orca, AK

Average wind speed in December - Orca, AK
  • Average wind speed in December: 12mph

The windiest months (with the highest average wind speed) are January and November (12.1mph).
The calmest month (with the lowest average wind speed) is June (5.2mph).

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Average humidity in December
Orca, AK

Average humidity in December - Orca, AK
  • Average humidity in December: 81%

The month with the highest relative humidity is August (84%).
The month with the lowest relative humidity is November (75%).

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Average rainfall in December
Orca, AK

Average rainfall in December - Orca, AK
  • Average rainfall in December: 8.98"

The wettest month (with the highest rainfall) is October (9.09").
The driest month (with the least rainfall) is June (2.72").

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Average rainfall days in December
Orca, AK

Average rainfall days in December - Orca, AK
  • Average rainfall days in December: 14.5 days

The month with the highest number of rainy days is August (21 days).
The month with the least rainy days is February (9.6 days).

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Average snowfall in December
Orca, AK

Average snowfall in December - Orca, AK
  • Average snowfall in December: 17.76"

The month with the highest snowfall is December (17.76").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Orca, AK

Average snowfall days in December - Orca, AK
  • Average snowfall days in December: 12.9 days

The month with the highest number of snowfall days is December (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).

  • Average sunshine in December: 2h and 1min

The months with the most sunshine are May, June and July (Average sunshine: 7h and 36min).
The month with the least sunshine is December (Average sunshine: 2h and 6min).

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Average sunshine days in December
Orca, AK

Average sunshine days in December - Orca, AK
  • Average sunshine days in December: 9.3 days

The month with the most sunshine days is July (12.1 days).
The month with the least sunshine days is September (8 days).

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Average UV index in December
Orca, AK

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

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

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Average cloud cover in December
Orca, AK

Average cloud cover in December - Orca, AK
  • Average cloud cover in December: 68

The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is May (Cloud cover 57).

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Average visibility in December
Orca, AK

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

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

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Orca, Alaska, USA

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