January weather forecast
Adak, AK

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Rocks amid golden-brown plants in the fall overlooking a large lake in Adak, Alaska
Rocks amid golden-brown plants in the fall overlooking a large lake in Adak, Alaska

Weather in January

Adak, Alaska, greets January with the height of its winter season. The city is draped in white, with snowfall averaging 4.72" (120mm). It's a strong contrast to the fairly mild temperatures of the previous month, with temperatures settling closer to freezing. The sunlight hours are at their feeblest. Prepare to witness frosty landscapes under mostly overcast skies.

Temperature

The coldest period in Adak tends to be January, when average temperatures fluctuate between a high of 36.9°F (2.7°C) and a low of 34.2°F (1.2°C).

Humidity

The months with the lowest humidity in Adak are January and December, with an average relative humidity of 76%.

Rainfall

In Adak, in January, during 9.1 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. In Adak, during the entire year, the rain falls for 173.3 days and collects up to 27.4" (696mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. The month with the most snowfall in Adak is January, when snow falls for 12.2 days and typically aggregates up to 4.72" (120mm) of snow.

Daylight

In January, the average length of the day is 8h and 25min.
On the first day of the month, sunrise is at 9:53 am and sunset at 5:46 pm. On the last day of January, sunrise is at 9:27 am and sunset at 6:32 pm HST.

Sunshine

In Adak, the average sunshine in January is 2.6h.

UV index

January through April 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 vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index of 1 during January leads to these instructions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Boost your sun resistance with garments that are densely woven yet spacious. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

What are the coldest months in Adak?

The month of January, characterized by an average high of 36.9°F (2.7°C) and a low of 34.2°F (1.2°C), is recognized as the coldest in Adak, Alaska.

How cold is January in Adak?

The average high-temperature and low-temperature in Adak, Alaska, during January are 36.9°F (2.7°C) and 34.2°F (1.2°C) respectively.

What is the least humid month in Adak?

January and December, with an average relative humidity of 76%, are the least humid months in Adak, Alaska.

What is the average humidity in January in Adak?

In Adak, the average relative humidity in January is 76%.

How much does it rain in Adak in January?

In January, in Adak, the rain falls for 9.1 days. Throughout January, 2.56" (65mm) of precipitation is accumulated.

What is the snowiest month in Adak?

The month with the most snowfall in Adak is January, when snow falls for 12.2 days and typically aggregates up to 4.72" (120mm) of snow.

How much does it snow in Adak in January?

In January, it is snowing for 12.2 days. Throughout January, 4.72" (120mm) of snow is accumulated.

How many hours of daylight does Adak have in January?

In January, the average day length in Adak, Alaska, is 8h and 25min.

What time are sunrise and sunset in January in Adak?

On the first day of January, sunrise is at 9:53 am and sunset at 5:46 pm. On the last day of the month, sunrise is at 9:27 am and sunset at 6:32 pm HST.

How many hours of sunshine does Adak have in January?

In Adak, Alaska, the average sunshine duration in January is 2.6h.

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

January through April and December, with an average maximum UV index of 1, are months with the lowest UV index in Adak, Alaska.

What is the UV index intensity in January in Adak?

The average daily maximum UV index in January is 1. A UV Index estimate of 2, and below, represents a low health threat from unprotected exposure to 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 January
Adak, AK

Average temperature in January - Adak, AK
  • Average high temperature in January: 36.9°F

The warmest month (with the highest average high temperature) is August (52°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in January: 34.2°F

The month with the highest average low temperature is August (49.6°F).
The coldest month (with the lowest average low temperature) is March (33.8°F).

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Average pressure in January
Adak, AK

Average pressure in January - Adak, AK
  • Average pressure in January: 29.48"Hg

The month with the highest atmospheric pressure is July (29.95"Hg).
The month with the lowest atmospheric pressure is January (29.48"Hg).

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Average wind speed in January
Adak, AK

Average wind speed in January - Adak, AK
  • Average wind speed in January: 18.8mph

The windiest month (with the highest average wind speed) is February (21.2mph).
The calmest month (with the lowest average wind speed) is July (11.1mph).

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Average humidity in January
Adak, AK

Average humidity in January - Adak, AK
  • Average humidity in January: 76%

The month with the highest relative humidity is July (94%).
The months with the lowest relative humidity are January and December (76%).

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Average rainfall in January
Adak, AK

Average rainfall in January - Adak, AK
  • Average rainfall in January: 2.56"

The wettest month (with the highest rainfall) is February (2.8").
The driest month (with the least rainfall) is June (1.3").

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Average rainfall days in January
Adak, AK

Average rainfall days in January - Adak, AK
  • Average rainfall days in January: 9.1 days

The month with the highest number of rainy days is October (19.5 days).
The month with the least rainy days is January (9.1 days).

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Average snowfall in January
Adak, AK

Average snowfall in January - Adak, AK
  • Average snowfall in January: 4.72"

The month with the highest snowfall is January (4.72").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Adak, AK

Average snowfall days in January - Adak, AK
  • Average snowfall days in January: 12.2 days

The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Adak, AK

Average daylight in January / Average sunshine in January - Adak, AK
  • Average daylight in January: 8h and 2min

The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).

  • Average sunshine in January: 2h and 4min

The month with the most sunshine is October (Average sunshine: 5h and 6min).
The month with the least sunshine is December (Average sunshine: 2h and 6min).

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Average sunshine days in January
Adak, AK

Average sunshine days in January - Adak, AK
  • Average sunshine days in January: 8.2 days

The month with the most sunshine days is June (12.8 days).
The month with the least sunshine days is February (6.3 days).

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Average UV index in January
Adak, AK

Average UV index in January - Adak, AK
  • Average UV index in January: 1

The months with the highest UV index are July, August and September (UV index 3).
The months with the lowest UV index are January, February, March, April and December (UV index 1).

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Average cloud cover in January
Adak, AK

Average cloud cover in January - Adak, AK
  • Average cloud cover in January: 72

The month with the most cloud cover is July (Cloud cover 85).
The month with the least cloud cover is October (Cloud cover 63).

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Average visibility in January
Adak, AK

Average visibility in January - Adak, AK
  • Average visibility in January: 5mi

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

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Adak, Alaska, USA

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