December weather forecast
Eyak, AK

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Weather in December

The first month of the winter, December, is also a subzero cold month in Eyak, Alaska, with an average temperature varying between 26.2°F (-3.2°C) and 31.5°F (-0.3°C).

Temperature

The advent of December presents an average high-temperature of a freezing cold 31.5°F (-0.3°C), maintaining a close correlation with the preceding month. December nights in Eyak register a minor temperature decline, steadying at 26.2°F (-3.2°C).

Humidity

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

Rainfall

In Eyak, in December, during 14.5 rainfall days, 8.98" (228mm) of precipitation is typically accumulated. Throughout the year, there are 191.3 rainfall days, and 72.4" (1839mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Eyak. The month with the most snowfall in Eyak is December, when snow falls for 12.9 days and typically aggregates up to 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 9:23 am and sunset at 3:40 pm. On the last day of December, in Eyak, sunrise is at 9:49 am and sunset at 3:42 pm AKST.

Sunshine

The month with the least sunshine 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. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: A typical high UV index of 1 in December suggests the following recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
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Frequently asked questions

How cold is December in Eyak?

An average high-temperature, in December, in Eyak, is 31.5°F (-0.3°C) and the average low-temperature is 26.2°F (-3.2°C).

What is the average humidity in December in Eyak?

The average relative humidity in December is 81%.

How much does it rain in Eyak in December?

In December, the rain falls for 14.5 days. Throughout December, 8.98" (228mm) of precipitation is accumulated.

What is the snowiest month in Eyak?

The month with the most snowfall is December, when snow falls for 12.9 days and typically aggregates up to 17.76" (451mm) of snow.

How much does it snow in Eyak in December?

In Eyak, Alaska, in December, during 12.9 snowfall days, 17.76" (451mm) of snow is typically accumulated.

What is the month with the shortest days in Eyak?

The month with the shortest days is December, with an average of 5h and 54min of daylight.

How many hours of daylight does Eyak have in December?

In Eyak, the average day length in December is 5h and 52min.

When is the sunrise / sunset in December in Eyak?

In December, on the first day of the month, sunrise is at 9:23 am and sunset at 3:40 pm. On the last day of the month, sunrise is at 9:49 am and sunset at 3:42 pm AKST.

What is the month with the least sunshine in Eyak?

With an average of 2.1h of sunshine, December has the least sunshine of the year in Eyak, Alaska.

How many hours of sunshine does Eyak have in December?

The average sunshine duration in December in Eyak, Alaska, is 2.1h.

When is the lowest UV index in Eyak?

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

How high is the UV index in December in Eyak?

In December, the average daily maximum UV index in Eyak is 1. A UV Index reading of 2, and below, represents a minimal hazard to health from 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
Eyak, AK

Average temperature in December - Eyak, 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
Eyak, AK

Average pressure in December - Eyak, 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
Eyak, AK

Average wind speed in December - Eyak, 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
Eyak, AK

Average humidity in December - Eyak, 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
Eyak, AK

Average rainfall in December - Eyak, 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
Eyak, AK

Average rainfall days in December - Eyak, 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
Eyak, AK

Average snowfall in December - Eyak, 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
Eyak, AK

Average snowfall days in December - Eyak, 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
Eyak, AK

Average daylight in December / Average sunshine in December - Eyak, 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
Eyak, AK

Average sunshine days in December - Eyak, 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
Eyak, AK

Average UV index in December - Eyak, 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
Eyak, AK

Average cloud cover in December - Eyak, 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
Eyak, AK

Average visibility in December - Eyak, 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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Eyak, Alaska, USA

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