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
Mendeltna records an average high-temperature of an extremely cold 8.1°F (-13.3°C) in December, closely mirroring the climate of the previous month. Nighttime temperature dips to a mean of -2.9°F (-19.4°C) during December.Humidity
The months with the highest humidity are March and December, with an average relative humidity of 90%.Rainfall
In Mendeltna, during December, the rain falls for 11.1 days and regularly aggregates up to 1.81" (46mm) of precipitation. Throughout the year, there are 165.3 rainfall days, and 17.99" (457mm) of precipitation is accumulated.Snowfall
January through June, August through December are months with snowfall. The month with the most snowfall is December, when snow falls for 22.3 days and typically aggregates up to 14.49" (368mm) of snow.Daylight
With an average of 5h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 9:41 am and sunset at 3:28 pm. On the last day of December, sunrise is at 10:09 am and sunset at 3:29 pm AKST.
Sunshine
December has the least sunshine of the year, with an average of 3.7h of sunshine.UV index
January, April, September through 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 low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 1 in December translates into these instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What are the most humid months?
What is the average humidity in December?
How much does it rain in December?
What is the snowiest month?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Mendeltna 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 in Mendeltna?
What is the UV index reading in December?
Average temperature in December
Mendeltna, AK
- Average high temperature in December: 8.1°F
The warmest month (with the highest average high temperature) is July (57.7°F).
The month with the lowest average high temperature is January (6.3°F).
- Average low temperature in December: -2.9°F
The month with the highest average low temperature is July (43.7°F).
The coldest month (with the lowest average low temperature) is January (-5.6°F).
Average pressure in December
Mendeltna, AK
- Average pressure in December: 29.74"Hg
The month with the highest atmospheric pressure is July (29.96"Hg).
The months with the lowest atmospheric pressure are November and December (29.74"Hg).
Average wind speed in December
Mendeltna, AK
- Average wind speed in December: 4.2mph
The windiest month (with the highest average wind speed) is June (5mph).
The calmest month (with the lowest average wind speed) is March (3.9mph).
Average humidity in December
Mendeltna, AK
- Average humidity in December: 90%
The months with the highest relative humidity are March and December (90%).
The month with the lowest relative humidity is June (64%).
Average rainfall in December
Mendeltna, AK
- Average rainfall in December: 1.81"
The wettest month (with the highest rainfall) is August (2.01").
The driest month (with the least rainfall) is April (0.83").
Average rainfall days in December
Mendeltna, AK
- Average rainfall days in December: 11.1 days
The month with the highest number of rainy days is August (20.8 days).
The month with the least rainy days is February (9.1 days).
Average snowfall in December
Mendeltna, AK
- Average snowfall in December: 14.49"
The month with the highest snowfall is December (14.49").
The month with the least snowfall is July (0").
Average snowfall days in December
Mendeltna, AK
- Average snowfall days in December: 22.3 days
The month with the highest number of snowfall days is December (22.3 days).
The month with the least snowfall days is July (0 days).
Average daylight in December /
Average sunshine in December
Mendeltna, AK
- Average daylight in December: 5h and 2min
The month with the longest days is June (Average daylight: 19h and 36min).
The month with the shortest days is December (Average daylight: 5h and 18min).
- Average sunshine in December: 3h and 4min
The month with the most sunshine is June (Average sunshine: 12h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 42min).
Average sunshine days in December
Mendeltna, AK
- Average sunshine days in December: 7.6 days
The month with the most sunshine days is May (10.7 days).
The month with the least sunshine days is June (6.8 days).
Average UV index in December
Mendeltna, AK
- Average UV index in December: 1
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, April, September, October, November and December (UV index 1).
Average cloud cover in December
Mendeltna, 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 July (Cloud cover 37).
Average visibility in December
Mendeltna, AK
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).
Mendeltna, Alaska, USA
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