December weather forecastSaint George, AK

December

Weather in December

The first month of the winter, December, is also a wintry month in Saint George, Alaska, with an average temperature varying between 36.3°F (2.4°C) and 33.3°F (0.7°C).

Temperature

As December unfolds, the average high-temperature reaches a still wintry 36.3°F (2.4°C), hinting at a slight fluctuation from the previous month. A slight dip in temperature to a still cold 33.3°F (0.7°C) marks the average nights during December.

Humidity

November and December, with an average relative humidity of 77%, are the least humid months.

Rainfall

In December, the rain falls for 11 days. Throughout December, 2.87" (73mm) of precipitation is accumulated. Throughout the year, there are 159.8 rainfall days, and 24.17" (614mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In December, in Saint George, it is snowing for 11.5 days. Throughout December, 2.6" (66mm) of snow is accumulated. Throughout the year, there are 71.1 snowfall days, and 16.02" (407mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Saint George, with an average of 6h and 54min of daylight.
On the first day of December, sunrise is at 10:30 am and sunset at 5:44 pm. On the last day of the month, sunrise is at 10:53 am and sunset at 5:50 pm AKST.

Sunshine

With an average of 1.7h of sunshine, December has the least sunshine of the year.

UV index

February through April, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 1 during December translates into the following recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Enhance your sun protection with tightly woven, yet airy clothing. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature, in December, in Saint George, is 36.3°F (2.4°C), while the average low-temperature is 33.3°F (0.7°C).

The months with the lowest humidity are November and December, with an average relative humidity of 77%.

The average relative humidity in December is 77%.

In Saint George, in December, during 11 rainfall days, 2.87" (73mm) of precipitation is typically accumulated.

In December, it is snowing for 11.5 days. Throughout December, 2.6" (66mm) of snow is accumulated.

With an average of 6h and 54min of daylight, December has the shortest days of the year.

In December, the average day length is 6h and 56min.

In December, on the first day of the month, sunrise is at 10:30 am and sunset at 5:44 pm. On the last day of the month, sunrise is at 10:53 am and sunset at 5:50 pm AKST.

With an average of 1.7h of sunshine, December has the least sunshine of the year.

In December, the average sunshine duration is 1.7h.

February through April, November and December, with an average maximum UV index of 1, are months with the lowest UV index.

The average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Saint George, AK

  • Average high temperature in December: 36.3°F

The warmest month (with the highest average high temperature) is August (50.9°F).
The month with the lowest average high temperature is March (31.3°F).

  • Average low temperature in December: 33.3°F

The month with the highest average low temperature is August (48.6°F).
The coldest month (with the lowest average low temperature) is March (26.2°F).

Average pressure in December
Saint George, AK

  • Average pressure in December: 29.52"Hg

The month with the highest atmospheric pressure is July (29.93"Hg).
The month with the lowest atmospheric pressure is December (29.52"Hg).

Average wind speed in December
Saint George, AK

  • Average wind speed in December: 21.9mph

The windiest month (with the highest average wind speed) is November (22.1mph).
The calmest month (with the lowest average wind speed) is July (12.7mph).

Average humidity in December
Saint George, AK

  • Average humidity in December: 77%

The month with the highest relative humidity is July (93%).
The months with the lowest relative humidity are November and December (77%).

Average rainfall in December
Saint George, AK

  • Average rainfall in December: 2.87"

The wettest month (with the highest rainfall) is November (2.95").
The driest month (with the least rainfall) is June (1.02").

Average rainfall days in December
Saint George, AK

  • Average rainfall days in December: 11 days

The month with the highest number of rainy days is October (22 days).
The month with the least rainy days is February (6.4 days).

Average snowfall in December
Saint George, AK

  • Average snowfall in December: 2.6"

The month with the highest snowfall is January (3.15").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Saint George, AK

  • Average snowfall days in December: 11.5 days

The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Saint George, AK

  • Average daylight in December: 6h and 54min

The month with the longest days is June (Average daylight: 17h and 42min).
The month with the shortest days is December (Average daylight: 6h and 54min).

  • Average sunshine in December: 1h and 42min

The month with the most sunshine is June (Average sunshine: 5h and 24min).
The month with the least sunshine is December (Average sunshine: 1h and 42min).

Average sunshine days in December
Saint George, AK

  • Average sunshine days in December: 3.1 days

The months with the most sunshine days are May and June (11.8 days).
The month with the least sunshine days is December (3.1 days).

Average UV index in December
Saint George, AK

  • Average UV index in December: 1

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

Average cloud cover in December
Saint George, AK

  • Average cloud cover in December: 76

The month with the most cloud cover is July (Cloud cover 79).
The month with the least cloud cover is June (Cloud cover 69).

Average visibility in December
Saint George, AK

  • Average visibility in December: 5mi

The months with the highest visibility are May, June, August, September and October (6mi).
The month with the lowest visibility is January (4mi).