Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
In Koyukuk, the lowest average temperatures are observed in January, with a high of -0.8°F (-18.2°C) and a low of -10.5°F (-23.6°C).Humidity
The months with the highest humidity are January through March, with an average relative humidity of 96%.Rainfall
January is the month with the least rainfall. Rain falls for 2.3 days and accumulates 0.59" (15mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Koyukuk, in January, during 14.2 snowfall days, 4.49" (114mm) of snow is typically accumulated. In Koyukuk, Alaska, during the entire year, snow falls for 115.2 days and aggregates up to 43.07" (1094mm) of snow.Daylight
In January, the average length of the day in Koyukuk is 5h and 19min.On the first day of the month, sunrise is at 11:34 am and sunset at 3:34 pm. On the last day of January, sunrise is at 10:19 am and sunset at 5:08 pm AKST.
Sunshine
The average sunshine in January is 2.8h.UV index
January through March, October 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 minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In January, the maximum UV index of 1 suggests this advice:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Koyukuk?
How cold is it in January?
What are the most humid months?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January?
How many days does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
How many hours of sunshine does Koyukuk have in January?
When is the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Koyukuk, AK
- Average high temperature in January: -0.8°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 January: -10.5°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 January
Koyukuk, AK
- Average pressure in January: 29.91"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 January
Koyukuk, AK
- Average wind speed in January: 4.6mph
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 January
Koyukuk, AK
- Average humidity in January: 96%
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 January
Koyukuk, AK
- Average rainfall in January: 0.59"
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 January
Koyukuk, AK
- Average rainfall days in January: 2.3 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 January
Koyukuk, AK
- Average snowfall in January: 4.49"
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 January
Koyukuk, AK
- Average snowfall days in January: 14.2 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 January /
Average sunshine in January
Koyukuk, AK
- Average daylight in January: 5h and 2min
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 January: 2h and 5min
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 January
Koyukuk, AK
- Average sunshine days in January: 18 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 January
Koyukuk, AK
- Average UV index in January: 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 January
Koyukuk, AK
- Average cloud cover in January: 58
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 January
Koyukuk, AK
- Average visibility in January: 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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