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 sea temperature 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
Anchorage's average high-temperature in December sits at a still freezing cold 23.4°F (-4.8°C), showing little difference from the previous month. During the December nights, Anchorage's temperature maintains an average close to the daytime highs, settling at a still freezing cold 16.7°F (-8.5°C).Humidity
In Anchorage, the average relative humidity in December is 84%.Rainfall
In Anchorage, in December, it is raining for 8.6 days, with typically 1.18" (30mm) of accumulated precipitation. In Anchorage, during the entire year, the rain falls for 139.9 days and collects up to 12.6" (320mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. December is the month with the most snowfall. Snow falls for 11.6 days and accumulates 5.51" (140mm) of snow.Ocean temperature
In Anchorage, Alaska, in December, the average water temperature is 39.6°F (4.2°C).Note: In swimming scenarios, this is an immediate danger to life. Breathing becomes uncontrollable instantly, obstructing any form of clear thinking. A specialized swimsuit is indispensable to lessen thermal leakage.
Daylight
With an average of 5h and 36min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 9:47 am and sunset at 3:50 pm. On the last day of December, sunrise is at 10:13 am and sunset at 3:52 pm AKST.
Sunshine
December has the least sunshine of the year, with an average of 3.8h of sunshine.UV index
In Anchorage, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 2 in December suggests the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December in Anchorage?
How many days does it rain in December?
When does it snow the most?
How much does it snow in December?
What is the water temperature in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December in Anchorage?
What is the month with the least sunshine?
How long on average sun shines in December?
How high is the UV index in December in Anchorage?
Average temperature in December
Anchorage, AK
- Average high temperature in December: 23.4°F
The warmest month (with the highest average high temperature) is July (61.9°F).
The month with the lowest average high temperature is January (20.3°F).
- Average low temperature in December: 16.7°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 (13.1°F).
Average pressure in December
Anchorage, AK
- Average pressure in December: 29.67"Hg
The month with the highest atmospheric pressure is July (29.96"Hg).
The months with the lowest atmospheric pressure are November and December (29.67"Hg).
Average wind speed in December
Anchorage, AK
- Average wind speed in December: 6.2mph
The windiest month (with the highest average wind speed) is November (6.3mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).
Average humidity in December
Anchorage, AK
- Average humidity in December: 84%
The months with the highest relative humidity are January, February and March (86%).
The month with the lowest relative humidity is May (68%).
Average rainfall in December
Anchorage, AK
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is September (1.93").
The driest month (with the least rainfall) is May (0.55").
Average rainfall days in December
Anchorage, AK
- Average rainfall days in December: 8.6 days
The month with the highest number of rainy days is August (17.9 days).
The month with the least rainy days is February (7 days).
Average snowfall in December
Anchorage, AK
- Average snowfall in December: 5.51"
The month with the highest snowfall is December (5.51").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Anchorage, AK
- Average snowfall days in December: 11.6 days
The month with the highest number of snowfall days is December (11.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average sea temperature in December
Anchorage, AK
- Average sea temperature in December: 39.6°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 December /
Average sunshine in December
Anchorage, AK
- Average daylight in December: 5h and 4min
The month with the longest days is June (Average daylight: 19h and 12min).
The month with the shortest days is December (Average daylight: 5h and 36min).
- Average sunshine in December: 3h and 5min
The months with the most sunshine are May and June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days in December
Anchorage, AK
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is January (16.9 days).
The month with the least sunshine days is September (11.1 days).
Average UV index in December
Anchorage, AK
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 4).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in December
Anchorage, AK
- Average cloud cover in December: 47
The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is May (Cloud cover 38).
Average visibility in December
Anchorage, AK
- Average visibility in December: 6mi
The months with the highest visibility are January, February, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is March (5mi).
Anchorage, Alaska, USA
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