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
A modest decline in the average high-temperature is seen during December, decreasing from an extreme cold 11.8°F (-11.2°C) in November to a still frigid cold 6.3°F (-14.3°C). December nights are marked by an average low-temperature of -4.4°F (-20.2°C).Humidity
In December, the average relative humidity is 91%.Rainfall
In Pleasant Valley, during December, the rain falls for 3.4 days and regularly aggregates up to 0.39" (10mm) of precipitation. Throughout the year, there are 101.2 rainfall days, and 10.59" (269mm) of precipitation is accumulated.Snowfall
Months with snowfall in Pleasant Valley are January through May, August through December. In Pleasant Valley, Alaska, in December, during 11 snowfall days, 2.72" (69mm) of snow is typically accumulated. Throughout the year, there are 76.9 snowfall days, and 24.37" (619mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 4h and 0min of daylight.On the first day of the month, sunrise is at 10:18 am and sunset at 2:55 pm. On the last day of December, sunrise is at 10:51 am and sunset at 2:50 pm AKST.
Sunshine
With an average of 2h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are March, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the average maximum UV index of 1 translates into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
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?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Pleasant Valley have in December?
What time 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 reading in December?
Average temperature in December
Pleasant Valley, AK
- Average high temperature in December: 6.3°F
The warmest month (with the highest average high temperature) is July (71.1°F).
The month with the lowest average high temperature is January (2.1°F).
- Average low temperature in December: -4.4°F
The month with the highest average low temperature is July (50.7°F).
The coldest month (with the lowest average low temperature) is January (-8.9°F).
Average pressure in December
Pleasant Valley, AK
- Average pressure in December: 29.86"Hg
The month with the highest atmospheric pressure is February (29.97"Hg).
The month with the lowest atmospheric pressure is September (29.77"Hg).
Average wind speed in December
Pleasant Valley, AK
- Average wind speed in December: 4.3mph
The windiest month (with the highest average wind speed) is May (5.1mph).
The calmest months (with the lowest average wind speed) are August, October, November and December (4.3mph).
Average humidity in December
Pleasant Valley, AK
- Average humidity in December: 91%
The month with the highest relative humidity is March (92%).
The months with the lowest relative humidity are May and June (56%).
Average rainfall in December
Pleasant Valley, AK
- Average rainfall in December: 0.39"
The wettest month (with the highest rainfall) is August (2.36").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in December
Pleasant Valley, AK
- Average rainfall days in December: 3.4 days
The month with the highest number of rainy days is August (17 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in December
Pleasant Valley, AK
- Average snowfall in December: 2.72"
The month with the highest snowfall is November (6.1").
The months with the least snowfall are June and July (0").
Average snowfall days in December
Pleasant Valley, AK
- Average snowfall days in December: 11 days
The month with the highest number of snowfall days is November (13.6 days).
The months with the least snowfall days are June and July (0 days).
Average daylight in December /
Average sunshine in December
Pleasant Valley, AK
- Average daylight in December: 4h and 0min
The month with the longest days is June (Average daylight: 21h and 30min).
The month with the shortest days is December (Average daylight: 4h and 0min).
- Average sunshine in December: 2h and 0min
The month with the most sunshine is June (Average sunshine: 12h and 24min).
The month with the least sunshine is December (Average sunshine: 2h and 0min).
Average sunshine days in December
Pleasant Valley, AK
- Average sunshine days in December: 19.3 days
The month with the most sunshine days is January (20.6 days).
The month with the least sunshine days is August (12.4 days).
Average UV index in December
Pleasant Valley, AK
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are March, November and December (UV index 1).
Average cloud cover in December
Pleasant Valley, AK
- Average cloud cover in December: 49
The month with the most cloud cover is March (Cloud cover 52).
The month with the least cloud cover is May (Cloud cover 38).
Average visibility in December
Pleasant Valley, AK
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).
Pleasant Valley, Alaska, USA
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