December weather forecast
Galena, AK

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Weather in December

December, the first month of the winter in Galena, is also an arctic cold month, with temperature in the range of an average low of -5.4°F (-20.8°C) and an average high of 3.9°F (-15.6°C).

Temperature

December ushers in a minute temperature change, with average high-temperatures reducing from November's extreme cold 10.6°F (-11.9°C) to an arctic cold 3.9°F (-15.6°C). Throughout the month of December, Galena reports a steady low-temperature average of -5.4°F (-20.8°C).

Humidity

In December, the average relative humidity is 95%.

Rainfall

In Galena, in December, during 2.5 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. Throughout the year, there are 116.7 rainfall days, and 14.8" (376mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. December is the month with the most snowfall. Snow falls for 17.5 days and accumulates 8.62" (219mm) of snow.

Daylight

With an average of 4h and 0min of daylight, December has the shortest days of the year in Galena.
On the first day of December, sunrise is at 10:56 am and sunset at 3:37 pm. On the last day of the month, sunrise is at 11:29 am and sunset at 3:33 pm AKST.

Sunshine

With an average of 2.3h of sunshine, December has the least sunshine of the year.

UV index

January through March, October through 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 unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum high daily UV index of 1 during December translates into the following directions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.

Frequently asked questions

How cold is it in December?

The average high-temperature, in December, in Galena, is 3.9°F (-15.6°C), while the average low-temperature is -5.4°F (-20.8°C).

What is the average humidity in December?

The average relative humidity in December is 95%.

How many days does it rain in December?

In December, the rain falls for 2.5 days. Throughout December, 1.14" (29mm) of precipitation is accumulated.

When does it snow the most in Galena?

The month with the most snowfall is December, when snow falls for 17.5 days and typically aggregates up to 8.62" (219mm) of snow.

How much does it snow in December?

In December, it is snowing for 17.5 days. Throughout December, 8.62" (219mm) of snow is accumulated.

What is the month with the shortest days in Galena?

With an average of 4h and 0min of daylight, December has the shortest days of the year.

How many hours of daylight does Galena have in December?

In Galena, the average day length in December is 4h and 2min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 10:56 am and sunset at 3:37 pm. On the last day of the month, sunrise is at 11:29 am and sunset at 3:33 pm AKST.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 2.3h of sunshine.

How many hours of sunshine does Galena have in December?

The average sunshine duration in December is 2.3h.

When is the lowest UV index?

January through March, October through December, with an average maximum UV index of 1, are months with the lowest UV index in Galena.

What is the UV index intensity in December in Galena?

In December, the average daily maximum UV index is 1. A UV Index estimate of 2, and below, represents a low health threat from unsafe 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
Galena, AK

Average temperature in December - Galena, AK
  • Average high temperature in December: 3.9°F

The warmest month (with the highest average high temperature) is July (67.3°F).
The month with the lowest average high temperature is January (-0.8°F).

  • Average low temperature in December: -5.4°F

The month with the highest average low temperature is July (49.5°F).
The coldest month (with the lowest average low temperature) is January (-10.5°F).

Average pressure in December
Galena, AK

Average pressure in December - Galena, AK
  • Average pressure in December: 29.81"Hg

The month with the highest atmospheric pressure is February (29.93"Hg).
The months with the lowest atmospheric pressure are September and October (29.76"Hg).

Average wind speed in December
Galena, AK

Average wind speed in December - Galena, AK
  • Average wind speed in December: 4.7mph

The windiest month (with the highest average wind speed) is September (5.2mph).
The calmest month (with the lowest average wind speed) is January (4.6mph).

Average humidity in December
Galena, AK

Average humidity in December - Galena, AK
  • Average humidity in December: 95%

The months with the highest relative humidity are January, February and March (96%).
The month with the lowest relative humidity is June (59%).

Average rainfall in December
Galena, AK

Average rainfall in December - Galena, AK
  • Average rainfall in December: 1.14"

The wettest month (with the highest rainfall) is August (2.05").
The driest month (with the least rainfall) is January (0.59").

Average rainfall days in December
Galena, AK

Average rainfall days in December - Galena, AK
  • Average rainfall days in December: 2.5 days

The month with the highest number of rainy days is August (19 days).
The months with the least rainy days are January and February (2.3 days).

Average snowfall in December
Galena, AK

Average snowfall in December - Galena, AK
  • Average snowfall in December: 8.62"

The month with the highest snowfall is December (8.62").
The months with the least snowfall are June, July and August (0").

Average snowfall days in December
Galena, AK

Average snowfall days in December - Galena, AK
  • Average snowfall days in December: 17.5 days

The month with the highest number of snowfall days is March (20.3 days).
The months with the least snowfall days are June and July (0 days).

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

Average daylight in December / Average sunshine in December - Galena, AK
  • Average daylight in December: 4h and 0min

The month with the longest days is June (Average daylight: 21h and 24min).
The month with the shortest days is December (Average daylight: 4h and 0min).

  • Average sunshine in December: 2h and 2min

The month with the most sunshine is May (Average sunshine: 8h and 6min).
The month with the least sunshine is December (Average sunshine: 2h and 18min).

Average sunshine days in December
Galena, AK

Average sunshine days in December - Galena, AK
  • Average sunshine days in December: 14.5 days

The month with the most sunshine days is January (18 days).
The month with the least sunshine days is April (6.5 days).

Average UV index in December
Galena, AK

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

The months with the highest UV index are May, June and July (UV index 4).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).

Average cloud cover in December
Galena, AK

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

The month with the most cloud cover is April (Cloud cover 77).
The month with the least cloud cover is June (Cloud cover 47).

Average visibility in December
Galena, AK

Average visibility in December - Galena, AK
  • Average visibility in December: 2mi

The months with the highest visibility are June and July (6mi).
The months with the lowest visibility are January, February, March, April and December (2mi).

Galena, Alaska, USA

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