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 transition into December marks the average high-temperature at a still frigid cold 7.9°F (-13.4°C), differing minimally from November's 12.4°F (-10.9°C). Usibelli experiences a mean low-temperature of -2.6°F (-19.2°C) during December.Humidity
In Usibelli, Alaska, the average relative humidity in December is 91%.Rainfall
In December, the rain falls for 1.5 days. Throughout December, 0.39" (10mm) of precipitation is accumulated. Throughout the year, in Usibelli, Alaska, there are 106.3 rainfall days, and 14.49" (368mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, August through December. In Usibelli, in December, during 10.3 snowfall days, 3.11" (79mm) of snow is typically accumulated. Throughout the year, there are 93.4 snowfall days, and 35.94" (913mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 4h and 30min of daylight.On the first day of December, sunrise is at 10:11 am and sunset at 3:17 pm. On the last day of the month, sunrise is at 10:42 am and sunset at 3:14 pm AKST.
Sunshine
The months with the least sunshine in Usibelli are January and December, with an average of 3.3h of sunshine.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high daily UV index of 1 during December translates into the following directions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
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 many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
What are the months with the least sunshine?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index reading in December in Usibelli?
Average temperature in December
Usibelli, AK
- Average high temperature in December: 7.9°F
The warmest month (with the highest average high temperature) is July (62.8°F).
The month with the lowest average high temperature is January (4.6°F).
- Average low temperature in December: -2.6°F
The month with the highest average low temperature is July (45.3°F).
The coldest month (with the lowest average low temperature) is January (-6.3°F).
Average pressure in December
Usibelli, AK
- Average pressure in December: 29.81"Hg
The month with the highest atmospheric pressure is February (29.93"Hg).
The month with the lowest atmospheric pressure is September (29.76"Hg).
Average wind speed in December
Usibelli, AK
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is May (5.5mph).
The calmest months (with the lowest average wind speed) are March and November (4.6mph).
Average humidity in December
Usibelli, AK
- Average humidity in December: 91%
The month with the highest relative humidity is March (93%).
The month with the lowest relative humidity is June (64%).
Average rainfall in December
Usibelli, AK
- Average rainfall in December: 0.39"
The wettest month (with the highest rainfall) is August (3.15").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in December
Usibelli, AK
- Average rainfall days in December: 1.5 days
The month with the highest number of rainy days is June (19.6 days).
The months with the least rainy days are February and December (1.5 days).
Average snowfall in December
Usibelli, AK
- Average snowfall in December: 3.11"
The month with the highest snowfall is March (6.89").
The months with the least snowfall are June and July (0").
Average snowfall days in December
Usibelli, AK
- Average snowfall days in December: 10.3 days
The month with the highest number of snowfall days is March (17.4 days).
The months with the least snowfall days are June and July (0 days).
Average daylight in December /
Average sunshine in December
Usibelli, AK
- Average daylight in December: 4h and 3min
The month with the longest days is June (Average daylight: 20h and 42min).
The month with the shortest days is December (Average daylight: 4h and 30min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 3h and 18min).
Average sunshine days in December
Usibelli, AK
- Average sunshine days in December: 20.9 days
The month with the most sunshine days is January (21.2 days).
The month with the least sunshine days is June (8.5 days).
Average UV index in December
Usibelli, AK
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in December
Usibelli, AK
- Average cloud cover in December: 52
The month with the most cloud cover is March (Cloud cover 61).
The month with the least cloud cover is May (Cloud cover 42).
Average visibility in December
Usibelli, AK
- Average visibility in December: 4mi
The months with the highest visibility are May, June and July (6mi).
The months with the lowest visibility are January and March (3mi).
Usibelli, Alaska, USA
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