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 arrival of December sees an average high-temperature of a still freezing cold 17.1°F (-8.3°C), hardly diverging from November's 22.1°F (-5.5°C). Port Alsworth, during the month of December, experiences an average low-temperature of 6.8°F (-14°C).Humidity
In Port Alsworth, the average relative humidity in December is 87%.Rainfall
In Port Alsworth, in December, during 8.4 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. Throughout the year, there are 190.3 rainfall days, and 31.5" (800mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, August through December. The month with the most snowfall is December, when snow falls for 18.5 days and typically aggregates up to 15.63" (397mm) of snow.Daylight
The month with the shortest days is December, with an average of 6h and 0min of daylight.On the first day of December, sunrise is at 9:55 am and sunset at 4:17 pm. On the last day of the month, sunrise is at 10:21 am and sunset at 4:20 pm AKST.
Sunshine
December has the least sunshine of the year, with an average of 3.3h of sunshine.UV index
November and December, with an average maximum UV index of 1, are months with the lowest UV index in Port Alsworth. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 1 in December transforms into this advice:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
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?
What is the snowiest month?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Port Alsworth have in December?
What is the month with the lowest UV index?
What is the UV index reading in December in Port Alsworth?
Average temperature in December
Port Alsworth, AK
- Average high temperature in December: 17.1°F
The warmest month (with the highest average high temperature) is July (58.3°F).
The month with the lowest average high temperature is January (15.4°F).
- Average low temperature in December: 6.8°F
The month with the highest average low temperature is July (46°F).
The coldest month (with the lowest average low temperature) is January (5.2°F).
Average pressure in December
Port Alsworth, AK
- Average pressure in December: 29.65"Hg
The month with the highest atmospheric pressure is July (29.95"Hg).
The month with the lowest atmospheric pressure is December (29.65"Hg).
Average wind speed in December
Port Alsworth, AK
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is December (6.8mph).
The calmest month (with the lowest average wind speed) is June (5mph).
Average humidity in December
Port Alsworth, AK
- Average humidity in December: 87%
The month with the highest relative humidity is March (90%).
The months with the lowest relative humidity are May and June (74%).
Average rainfall in December
Port Alsworth, AK
- Average rainfall in December: 2.68"
The wettest month (with the highest rainfall) is September (4.21").
The driest month (with the least rainfall) is January (1.42").
Average rainfall days in December
Port Alsworth, AK
- Average rainfall days in December: 8.4 days
The month with the highest number of rainy days is August (23.6 days).
The month with the least rainy days is December (8.4 days).
Average snowfall in December
Port Alsworth, AK
- Average snowfall in December: 15.63"
The month with the highest snowfall is December (15.63").
The months with the least snowfall are June and July (0").
Average snowfall days in December
Port Alsworth, AK
- Average snowfall days in December: 18.5 days
The month with the highest number of snowfall days is December (18.5 days).
The months with the least snowfall days are June and July (0 days).
Average daylight in December /
Average sunshine in December
Port Alsworth, AK
- Average daylight in December: 6h and 0min
The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 6h and 0min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is May (Average sunshine: 9h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).
Average sunshine days in December
Port Alsworth, AK
- Average sunshine days in December: 10.8 days
The month with the most sunshine days is January (12.7 days).
The month with the least sunshine days is June (4.8 days).
Average UV index in December
Port Alsworth, AK
- Average UV index in December: 1
The months with the highest UV index are May, June and July (UV index 3).
The months with the lowest UV index are November and December (UV index 1).
Average cloud cover in December
Port Alsworth, AK
- Average cloud cover in December: 53
The month with the most cloud cover is August (Cloud cover 63).
The month with the least cloud cover is January (Cloud cover 47).
Average visibility in December
Port Alsworth, AK
- Average visibility in December: 5mi
The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are March and April (4mi).
Port Alsworth, Alaska, USA
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