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
December brings a slight decrease in temperature, down from 27.7°F (-2.4°C) in November to a still subzero cold 21.6°F (-5.8°C). Throughout the nights in December, Dillingham notes an average low of 13.8°F (-10.1°C), a small dip from the daytime peak.Humidity
In Dillingham, the average relative humidity in December is 87%.Rainfall
In Dillingham, in December, it is raining for 7.8 days, with typically 2.36" (60mm) of accumulated precipitation. In Dillingham, during the entire year, the rain falls for 142.3 days and collects up to 25.12" (638mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Dillingham, during December, snow falls for 11.5 days and regularly aggregates up to 6.1" (155mm) of snow. Throughout the year, there are 67.5 snowfall days, and 34.53" (877mm) of snow is accumulated.Ocean temperature
In Dillingham, the average seawater temperature in December is 35.4°F (1.9°C).Note: 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.
Daylight
December has the shortest days of the year, with an average of 6h and 18min of daylight.On the first day of December, sunrise is at 10:02 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 10:27 am and sunset at 4:47 pm AKST.
Sunshine
With an average of 2.9h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.Note: An average maximum UV index of 1 in December leads to these recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Boost your sun resistance with garments that are densely woven yet spacious. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Dillingham in December?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the water temperature in December?
What is the month with the shortest days?
How many hours of daylight does Dillingham have in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Dillingham, AK
- Average high temperature in December: 21.6°F
The warmest month (with the highest average high temperature) is July (62.4°F).
The month with the lowest average high temperature is January (17.4°F).
- Average low temperature in December: 13.8°F
The month with the highest average low temperature is July (49.1°F).
The coldest month (with the lowest average low temperature) is January (9.7°F).
Average pressure in December
Dillingham, AK
- Average pressure in December: 29.61"Hg
The month with the highest atmospheric pressure is July (29.95"Hg).
The month with the lowest atmospheric pressure is December (29.61"Hg).
Average wind speed in December
Dillingham, AK
- Average wind speed in December: 10.7mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is June (7.9mph).
Average humidity in December
Dillingham, AK
- Average humidity in December: 87%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is May (68%).
Average rainfall in December
Dillingham, AK
- Average rainfall in December: 2.36"
The wettest month (with the highest rainfall) is October (2.83").
The driest month (with the least rainfall) is June (1.42").
Average rainfall days in December
Dillingham, AK
- Average rainfall days in December: 7.8 days
The month with the highest number of rainy days is August (18.1 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in December
Dillingham, AK
- Average snowfall in December: 6.1"
The month with the highest snowfall is February (7.4").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Dillingham, AK
- Average snowfall days in December: 11.5 days
The month with the highest number of snowfall days is March (11.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average sea temperature in December
Dillingham, AK
- Average sea temperature in December: 35.4°F
The best month for swimming (with the highest average sea temperature) is August (54.3°F).
The coldest month (with the lowest average sea temperature) is February (31.6°F).
Average daylight in December /
Average sunshine in December
Dillingham, AK
- Average daylight in December: 6h and 2min
The month with the longest days is June (Average daylight: 18h and 24min).
The month with the shortest days is December (Average daylight: 6h and 18min).
- Average sunshine in December: 2h and 5min
The month with the most sunshine is June (Average sunshine: 8h and 42min).
The month with the least sunshine is December (Average sunshine: 2h and 54min).
Average sunshine days in December
Dillingham, AK
- Average sunshine days in December: 14.1 days
The month with the most sunshine days is March (16.2 days).
The month with the least sunshine days is August (11.2 days).
Average UV index in December
Dillingham, AK
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Dillingham, AK
- Average cloud cover in December: 57
The month with the most cloud cover is August (Cloud cover 62).
The months with the least cloud cover are June and November (Cloud cover 54).
Average visibility in December
Dillingham, AK
- Average visibility in December: 6mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and March (5mi).
Dillingham, Alaska, USA
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