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
The dawn of December sees an average high-temperature of a still wintry 36.9°F (2.7°C), subtly contrasting with November's 39.9°F (4.4°C). Port Lions experiences a subtle drop in temperature during the December nights, recording an average of 32°F (0°C).Humidity
The average relative humidity in December is 82%.Rainfall
In Port Lions, in December, it is raining for 14.8 days, with typically 4.29" (109mm) of accumulated precipitation. Throughout the year, there are 171.2 rainfall days, and 37.32" (948mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. In Port Lions, during December, snow falls for 5.1 days and regularly aggregates up to 2.32" (59mm) of snow. Throughout the year, there are 35.1 snowfall days, and 13.74" (349mm) of snow is accumulated.Daylight
With an average of 6h and 36min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 9:31 am and sunset at 4:29 pm. On the last day of December, in Port Lions, sunrise is at 9:55 am and sunset at 4:34 pm AKST.
Sunshine
January and December, with an average of 2.6h of sunshine, are months with the least sunshine.UV index
In Port Lions, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 during December leads to these advisories:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
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?
How many days 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 Port Lions have in December?
What time are sunrise and sunset in December in Port Lions?
What is the month with the least sunshine?
How many hours of sunshine does Port Lions have in December?
What is the UV index reading in December?
Average temperature in December
Port Lions, AK
- Average high temperature in December: 36.9°F
The warmest month (with the highest average high temperature) is August (57.6°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in December: 32°F
The month with the highest average low temperature is August (50.7°F).
The coldest month (with the lowest average low temperature) is March (30.6°F).
Average pressure in December
Port Lions, AK
- Average pressure in December: 29.55"Hg
The month with the highest atmospheric pressure is July (29.98"Hg).
The month with the lowest atmospheric pressure is December (29.55"Hg).
Average wind speed in December
Port Lions, AK
- Average wind speed in December: 14.2mph
The windiest month (with the highest average wind speed) is December (14.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in December
Port Lions, AK
- Average humidity in December: 82%
The month with the highest relative humidity is July (86%).
The months with the lowest relative humidity are March and November (80%).
Average rainfall in December
Port Lions, AK
- Average rainfall in December: 4.29"
The wettest months (with the highest rainfall) are October and November (4.53").
The driest month (with the least rainfall) is July (1.85").
Average rainfall days in December
Port Lions, AK
- Average rainfall days in December: 14.8 days
The month with the highest number of rainy days is September (17.6 days).
The month with the least rainy days is March (10.8 days).
Average snowfall in December
Port Lions, AK
- Average snowfall in December: 2.32"
The month with the highest snowfall is March (3.15").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Port Lions, AK
- Average snowfall days in December: 5.1 days
The month with the highest number of snowfall days is March (8.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Port Lions, AK
- Average daylight in December: 6h and 4min
The month with the longest days is June (Average daylight: 18h and 0min).
The month with the shortest days is December (Average daylight: 6h and 36min).
- Average sunshine in December: 2h and 4min
The month with the most sunshine is July (Average sunshine: 8h and 18min).
The months with the least sunshine are January and December (Average sunshine: 2h and 36min).
Average sunshine days in December
Port Lions, AK
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is July (14.7 days).
The month with the least sunshine days is April (10.7 days).
Average UV index in December
Port Lions, AK
- Average UV index in December: 2
The months with the highest UV index are June, July, August and September (UV index 3).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Port Lions, AK
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 52).
Average visibility in December
Port Lions, AK
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Port Lions, Alaska, USA
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