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 moderate decline in average high-temperatures is noted in December, moving from a frigid cold 10.6°F (-11.9°C) in November to an arctic cold 3.9°F (-15.6°C). Throughout the month of December, Koyukuk observes an average nighttime temperature of -5.4°F (-20.8°C).Humidity
The average relative humidity in December in Koyukuk is 95%.Rainfall
In Koyukuk, in December, it is raining for 2.5 days, with typically 1.14" (29mm) of accumulated precipitation. In Koyukuk, during the entire year, the rain falls for 116.7 days and collects up to 14.8" (376mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. December is the month with the most snowfall in Koyukuk. Snow falls for 17.5 days and accumulates 8.62" (219mm) of snow.Daylight
December has the shortest days of the year, with an average of 4h and 0min of daylight.On the first day of December, sunrise is at 11:01 am and sunset at 3:38 pm. On the last day of the month, sunrise is at 11:34 am and sunset at 3:33 pm AKST.
Sunshine
December has the least sunshine of the year in Koyukuk, Alaska, with an average of 2.3h of sunshine.UV index
The months with the lowest UV index in Koyukuk, Alaska, are January through March, October through December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, an average UV index of 1 transforms into the following instructions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. It's recommended to limit sun exposure when its radiation is at its peak during midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Frequently asked questions
How cold is it in Koyukuk in December?
What is the average humidity in December in Koyukuk?
How much does it rain in Koyukuk in December?
When does it snow the most in Koyukuk?
How much does it snow in Koyukuk in December?
What is the month with the shortest days in Koyukuk?
What is the average length of the day in December in Koyukuk?
When is the sunrise / sunset in December in Koyukuk?
What is the month with the least sunshine in Koyukuk?
How many hours of sunshine does Koyukuk have in December?
When is the lowest UV index in Koyukuk?
How high is the UV index in December in Koyukuk?
Average temperature in December
Koyukuk, AK
- Average high temperature in December: 3.9°F
The warmest month (with the highest average high temperature) is July (67.3°F).
The month with the lowest average high temperature is January (-0.8°F).
- Average low temperature in December: -5.4°F
The month with the highest average low temperature is July (49.5°F).
The coldest month (with the lowest average low temperature) is January (-10.5°F).
Average pressure in December
Koyukuk, AK
- Average pressure in December: 29.81"Hg
The month with the highest atmospheric pressure is February (29.93"Hg).
The months with the lowest atmospheric pressure are September and October (29.76"Hg).
Average wind speed in December
Koyukuk, AK
- Average wind speed in December: 4.7mph
The windiest month (with the highest average wind speed) is September (5.2mph).
The calmest month (with the lowest average wind speed) is January (4.6mph).
Average humidity in December
Koyukuk, AK
- Average humidity in December: 95%
The months with the highest relative humidity are January, February and March (96%).
The month with the lowest relative humidity is June (59%).
Average rainfall in December
Koyukuk, AK
- Average rainfall in December: 1.14"
The wettest month (with the highest rainfall) is August (2.05").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in December
Koyukuk, AK
- Average rainfall days in December: 2.5 days
The month with the highest number of rainy days is August (19 days).
The months with the least rainy days are January and February (2.3 days).
Average snowfall in December
Koyukuk, AK
- Average snowfall in December: 8.62"
The month with the highest snowfall is December (8.62").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Koyukuk, AK
- Average snowfall days in December: 17.5 days
The month with the highest number of snowfall days is March (20.3 days).
The months with the least snowfall days are June and July (0 days).
Average daylight in December /
Average sunshine in December
Koyukuk, 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 2min
The month with the most sunshine is May (Average sunshine: 8h and 6min).
The month with the least sunshine is December (Average sunshine: 2h and 18min).
Average sunshine days in December
Koyukuk, AK
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is January (18 days).
The month with the least sunshine days is April (6.5 days).
Average UV index in December
Koyukuk, AK
- Average UV index in December: 1
The months with the highest UV index are May, June and July (UV index 4).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in December
Koyukuk, AK
- Average cloud cover in December: 68
The month with the most cloud cover is April (Cloud cover 77).
The month with the least cloud cover is June (Cloud cover 47).
Average visibility in December
Koyukuk, AK
- Average visibility in December: 2mi
The months with the highest visibility are June and July (6mi).
The months with the lowest visibility are January, February, March, April and December (2mi).
Koyukuk, Alaska, USA
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