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
As November transitions into December, the average high-temperature rests at a still cold 37°F (2.8°C), maintaining a close resemblance to the previous month. Port Moller, in the month of December, notes an average low temperature of 33.4°F (0.8°C), indicating a small decrease from the daytime highs.Humidity
The average relative humidity in December is 81%.Rainfall
The month with the most rainfall is December, when the rain falls for 18.2 days and typically aggregates up to 4.45" (113mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Port Moller, in December, during 10.2 snowfall days, 3.82" (97mm) of snow is typically accumulated. In Port Moller, during the entire year, snow falls for 55.6 days and aggregates up to 18.19" (462mm) of snow.Daylight
December has the shortest days of the year, with an average of 7h and 6min of daylight.On the first day of the month, sunrise is at 9:50 am and sunset at 5:12 pm. On the last day of December, sunrise is at 10:13 am and sunset at 5:18 pm AKST.
Sunshine
The month with the least sunshine is December, with an average of 2.3h of sunshine.UV index
March 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 minimal health hazard from unsafe exposure to UV radiation for the average person.Note: The average daily UV index of 1 in December transforms into the following instructions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
What is the wettest month?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Port Moller have in December?
When are sunrise and 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 intensity in December?
Average temperature in December
Port Moller, AK
- Average high temperature in December: 37°F
The warmest month (with the highest average high temperature) is August (54.7°F).
The month with the lowest average high temperature is March (34°F).
- Average low temperature in December: 33.4°F
The month with the highest average low temperature is August (50.9°F).
The coldest month (with the lowest average low temperature) is March (28.9°F).
Average pressure in December
Port Moller, AK
- Average pressure in December: 29.52"Hg
The month with the highest atmospheric pressure is July (29.98"Hg).
The months with the lowest atmospheric pressure are January and December (29.52"Hg).
Average wind speed in December
Port Moller, AK
- Average wind speed in December: 16.8mph
The windiest month (with the highest average wind speed) is December (16.8mph).
The calmest month (with the lowest average wind speed) is July (9.2mph).
Average humidity in December
Port Moller, AK
- Average humidity in December: 81%
The month with the highest relative humidity is July (89%).
The month with the lowest relative humidity is November (79%).
Average rainfall in December
Port Moller, AK
- Average rainfall in December: 4.45"
The wettest month (with the highest rainfall) is December (4.45").
The driest month (with the least rainfall) is July (1.26").
Average rainfall days in December
Port Moller, AK
- Average rainfall days in December: 18.2 days
The month with the highest number of rainy days is December (18.2 days).
The month with the least rainy days is June (10.3 days).
Average snowfall in December
Port Moller, AK
- Average snowfall in December: 3.82"
The month with the highest snowfall is January (4.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Port Moller, AK
- Average snowfall days in December: 10.2 days
The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Port Moller, AK
- Average daylight in December: 7h and 1min
The month with the longest days is June (Average daylight: 17h and 30min).
The month with the shortest days is December (Average daylight: 7h and 6min).
- Average sunshine in December: 2h and 2min
The month with the most sunshine is June (Average sunshine: 6h and 54min).
The month with the least sunshine is December (Average sunshine: 2h and 18min).
Average sunshine days in December
Port Moller, AK
- Average sunshine days in December: 4.6 days
The month with the most sunshine days is June (17.7 days).
The month with the least sunshine days is December (4.6 days).
Average UV index in December
Port Moller, AK
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 3).
The months with the lowest UV index are March and December (UV index 1).
Average cloud cover in December
Port Moller, AK
- Average cloud cover in December: 68
The months with the most cloud cover are February and December (Cloud cover 68).
The months with the least cloud cover are March and September (Cloud cover 60).
Average visibility in December
Port Moller, AK
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Port Moller, Alaska, USA
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