Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Adak's weather in December, with an average high-temperature of a still wintry 38.8°F (3.8°C), subtly shifts from November's 41.9°F (5.5°C). Adak, during December nights, observes a steady temperature, averaging at a still wintry 36.1°F (2.3°C).Humidity
January and December, with an average relative humidity of 76%, are the least humid months.Rainfall
In Adak, in December, it is raining for 12.5 days, with typically 2.72" (69mm) of accumulated precipitation. 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. In Adak, in December, during 9.6 snowfall days, 2.56" (65mm) of snow is typically accumulated. In Adak, during the entire year, snow falls for 53.7 days and aggregates up to 16.3" (414mm) of snow.Daylight
With an average of 7h and 54min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 9:33 am and sunset at 5:39 pm. On the last day of the month, sunrise is at 9:53 am and sunset at 5:46 pm HST.
Sunshine
December has the least sunshine of the year, with an average of 2.1h of sunshine.UV index
January through April and December, with an average maximum UV index of 1, are months with the lowest UV index in Adak. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: During December, 1 as the daily maximum UV index converts into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in Adak in December?
What is the least humid month?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December in Adak?
What is the month with the shortest days?
How many hours of daylight does Adak have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Adak have in December?
When is the lowest UV index?
What is the UV index intensity in December in Adak?
Average temperature in December
Adak, AK
- Average high temperature in December: 38.8°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 December: 36.1°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).
Average pressure in December
Adak, AK
- Average pressure in December: 29.53"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).
Average wind speed in December
Adak, AK
- Average wind speed in December: 20.4mph
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).
Average humidity in December
Adak, AK
- Average humidity in December: 76%
The month with the highest relative humidity is July (94%).
The months with the lowest relative humidity are January and December (76%).
Average rainfall in December
Adak, AK
- Average rainfall in December: 2.72"
The wettest month (with the highest rainfall) is February (2.8").
The driest month (with the least rainfall) is June (1.3").
Average rainfall days in December
Adak, AK
- Average rainfall days in December: 12.5 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).
Average snowfall in December
Adak, AK
- Average snowfall in December: 2.56"
The month with the highest snowfall is January (4.72").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Adak, AK
- Average snowfall days in December: 9.6 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).
Average daylight in December /
Average sunshine in December
Adak, AK
- Average daylight in December: 7h and 5min
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 December: 2h and 1min
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).
Average sunshine days in December
Adak, AK
- Average sunshine days in December: 7.2 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).
Average UV index in December
Adak, AK
- Average UV index in December: 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).
Average cloud cover in December
Adak, AK
- Average cloud cover in December: 71
The month with the most cloud cover is July (Cloud cover 85).
The month with the least cloud cover is October (Cloud cover 63).
Average visibility in December
Adak, AK
- Average visibility in December: 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).
Adak, Alaska, USA
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