January weather forecast and climate
Anchorage, AK

Wintertime in Anchorage, Alaska, with mountains blanketed in snow
Wintertime in Anchorage, Alaska, with mountains blanketed in snow
January, the same as December, in Anchorage, Alaska, is another subzero cold winter month, with average temperature varying between 22.6°F (-5.2°C) and 11.5°F (-11.4°C).

Temperature

The coldest month is January, with an average high-temperature of 22.6°F (-5.2°C) and an average low-temperature of 11.5°F (-11.4°C).

Humidity

In January, the average relative humidity in Anchorage, Alaska, is 73.4%.

Rainfall

In Anchorage, in January, during 8.1 rainfall days, 0.8" (19.1mm) of precipitation is typically accumulated. In Anchorage, during the entire year, the rain falls for 115.1 days and collects up to 16.7" (423.4mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall in Anchorage, Alaska.

Ocean temperature

In Anchorage, Alaska, the average water temperature is 37°F (2.8°C). For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

Daylight

In Anchorage, the average length of the day in January is 6.6h.

Sunshine

In Anchorage, the average sunshine in January is 2.7h.

UV index

Months with the lowest UV index in Anchorage, Alaska, are January, February, November and December, with an average maximum UV index of 0. A UV Index estimate of 2, and below, represents a minimal health hazard from the exposure to the Sun's UV rays for the average person.
The average daily UV index of 0 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. 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.

What is the coldest month in Anchorage?

January is the coldest month in Anchorage, Alaska, with an average high-temperature of 22.6°F (-5.2°C) and an average low-temperature of 11.5°F (-11.4°C).

What is the temperature in January in Anchorage?

The average high-temperature, in January, in Anchorage, Alaska, is 22.6°F (-5.2°C), while the average low-temperature is 11.5°F (-11.4°C).

What is the average humidity in January in Anchorage?

In Anchorage, the average relative humidity in January is 73.4%.

How many days does it rain in January in Anchorage?

In January, the rain falls for 8.1 days. Throughout January, 0.8" (19.1mm) of precipitation is accumulated.

How much does it snow in Anchorage in January?

In Anchorage, during January, snow falls for 9.7 days and regularly aggregates up to 15.4" (391.2mm) of snow.

What is the ocean temperature in January in Anchorage?

In Anchorage, Alaska, the average seawater temperature in January is 37°F (2.8°C). For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

How many hours of daylight does Anchorage have in January?

In January, the average length of the day is 6.6h.

How many hours of sunshine does Anchorage have in January?

The average sunshine in January in Anchorage, Alaska, is 2.7h.

When is the lowest UV index in Anchorage?

January, February, November and December, with an average maximum UV index of 0, are months with the lowest UV index.

What is the UV index intensity in January in Anchorage?

In Anchorage, Alaska, the average daily maximum UV index in January is 0. A UV Index reading of 2, and below, represents a minimal hazard to health from the exposure to the Sun's UV rays.
Average temperature in January - Anchorage, AK
  • Average high temperature in January: 22.7°F

The warmest month (with the highest average high temperature) is July (65.4°F).
The month with the lowest average high temperature is January (22.7°F).

  • Average low temperature in January: 11.4°F

The month with the highest average low temperature is July (51.3°F).
The coldest month (with the lowest average low temperature) is January (11.4°F).

Average humidity in January - Anchorage, AK
  • Average humidity in January: 73.4%

Months with the highest relative humidity are November and December (77.1%).
The month with the lowest relative humidity is May (61.6%).

Average rainfall in January - Anchorage, AK
  • Average rainfall in January: 0.8"

The wettest month (with the highest rainfall) is August (3.3").
The driest month (with the lowest rainfall) is April (0.5").

Average rainfall days in January - Anchorage, AK
  • Average rainfall days in January: 8.1 days

The month with the highest number of rainy days is September (14.5 days).
The month with the lowest number of rainy days is April (5.5 days).

Average snowfall in January - Anchorage, AK
  • Average snowfall in January: 15.4"

The month with the highest snowfall is December (20.5").
Months with the lowest snowfall are June, July and August (0").

Average snowfall days in January - Anchorage, AK
  • Average snowfall days in January: 9.7 days

The month with the highest number of snowfall days is December (10.5 days).
Months with the lowest number of snowfall days are June, July and August (0 days).

Average sea temperature in January - Anchorage, AK
  • Average sea temperature in January: 36.9°F

The best month for swimming (with the highest average sea temperature) is August (53.1°F).
The coldest month (with the lowest average sea temperature) is February (35.8°F).

Average daylight in January / Average sunshine in January - Anchorage, AK
  • Average daylight in January: 6.6h

The month with the longest days is June (Average daylight: 19.2h).
The month with shortest days is December (Average daylight: 5.6h).

  • Average sunshine in January: 2.7h

The month with most sunshine is May (Average sunshine: 9.3h).
The month with least sunshine is December (Average sunshine: 1.7h).

Average UV index in January - Anchorage, AK
  • Average UV index in January: 0

Months with the highest UV index are June and July (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 0).

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