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
Juneau's coldest month, January, generally records average temperatures ranging from a high of 22.6°F (-5.2°C) to a low of 11.1°F (-11.6°C).Humidity
The months with the highest humidity in Juneau are January and February, with an average relative humidity of 89%.Rainfall
January and February are months with the least rain when the rain falls for 3.3 days and typically aggregates up to 0.47" (12mm) of rain.Snowfall
Months with snowfall in Juneau are January through May, October through December. The month with the most snowfall is January, when snow falls for 12.8 days and typically aggregates up to 1.89" (48mm) of snow.Daylight
The average length of the day in January is 9h and 24min.On the first day of the month, sunrise is at 7:27 am and sunset at 4:29 pm. On the last day of January, in Juneau, sunrise is at 7:11 am and sunset at 5:04 pm CST.
Sunshine
The month with the least sunshine in Juneau is January, with an average of 3.2h of sunshine.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 1 in January translates into this advice:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Juneau?
How cold is January in Juneau?
What is the most humid month in Juneau?
What is the average humidity in January in Juneau?
What is the driest month in Juneau?
How many days does it rain in January in Juneau?
When does it snow the most in Juneau?
How much does it snow in Juneau in January?
What is the average length of the day in January in Juneau?
When is the sunrise / sunset in January in Juneau?
What is the month with the least sunshine in Juneau?
How long on average sun shines in January in Juneau?
What is the month with the lowest UV index in Juneau?
How high is the UV index in January in Juneau?
Average temperature in January
Juneau, WI
- Average high temperature in January: 22.6°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (22.6°F).
- Average low temperature in January: 11.1°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (11.1°F).
Average pressure in January
Juneau, WI
- Average pressure in January: 30.1"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Juneau, WI
- Average wind speed in January: 9.8mph
The windiest month (with the highest average wind speed) is April (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in January
Juneau, WI
- Average humidity in January: 89%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is April (76%).
Average rainfall in January
Juneau, WI
- Average rainfall in January: 0.47"
The wettest month (with the highest rainfall) is June (1.93").
The driest months (with the least rainfall) are January and February (0.47").
Average rainfall days in January
Juneau, WI
- Average rainfall days in January: 3.3 days
The month with the highest number of rainy days is May (15 days).
The months with the least rainy days are January and February (3.3 days).
Average snowfall in January
Juneau, WI
- Average snowfall in January: 1.89"
The month with the highest snowfall is January (1.89").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Juneau, WI
- Average snowfall days in January: 12.8 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Juneau, WI
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January: 3h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in January
Juneau, WI
- Average sunshine days in January: 18.7 days
The month with the most sunshine days is January (18.7 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in January
Juneau, WI
- Average UV index in January: 1
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in January
Juneau, WI
- Average cloud cover in January: 66
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in January
Juneau, WI
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Juneau, Wisconsin, USA
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