January weather forecast
Juneau, WI

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Weather in January

January, like December, is another subzero cold winter month in Juneau, Wisconsin, with an average temperature varying between 11.1°F (-11.6°C) and 22.6°F (-5.2°C).

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.
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Frequently asked questions

What are the coldest months in Juneau?

January is Juneau's coldest month, registering average high temperatures of 22.6°F (-5.2°C) and lows of 11.1°F (-11.6°C).

How cold is January in Juneau?

The average high-temperature and low-temperature during January are 22.6°F (-5.2°C) and 11.1°F (-11.6°C) respectively.

What is the most humid month in Juneau?

The months with the highest humidity are January and February, with an average relative humidity of 89%.

What is the average humidity in January in Juneau?

In Juneau, the average relative humidity in January is 89%.

What is the driest month in Juneau?

January and February are months with the least rain in Juneau, Wisconsin, when the rain falls for 3.3 days and typically aggregates up to 0.47" (12mm) of rain.

How many days does it rain in January in Juneau?

In January, in Juneau, the rain falls for 3.3 days. Throughout January, 0.47" (12mm) of precipitation is accumulated.

When does it snow the most in Juneau?

The month with the most snowfall in Juneau, Wisconsin, is January, when snow falls for 12.8 days and typically aggregates up to 1.89" (48mm) of snow.

How much does it snow in Juneau in January?

In Juneau, Wisconsin, during January, snow falls for 12.8 days and regularly aggregates up to 1.89" (48mm) of snow.

What is the average length of the day in January in Juneau?

In January, the average day length in Juneau is 9h and 24min.

When is the sunrise / sunset in January in Juneau?

On the first day of January in Juneau, Wisconsin, sunrise is at 7:27 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:04 pm CST.

What is the month with the least sunshine in Juneau?

With an average of 3.2h of sunshine, January has the least sunshine of the year in Juneau, Wisconsin.

How long on average sun shines in January in Juneau?

In Juneau, the average sunshine duration in January is 3.2h.

What is the month with the lowest UV index in Juneau?

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index.

How high is the UV index in January in Juneau?

In January, the average daily maximum UV index in Juneau, Wisconsin, is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
29.5°F -1.4°C
22.6°F -5.2°C
26.4°F -3.1°C
Average low temperature
19.6°F -6.9°C
11.1°F -11.6°C
13.6°F -10.2°C
Average pressure
30.09" 764mmHg
30.1" 765mmHg
30.1" 765mmHg
Average wind speed
9.4mph 15.1km/h
9.8mph 15.8km/h
9.9mph 15.9km/h
Average max. wind speed
10.1mph 16.3km/h
10.6mph 17.1km/h
10.6mph 17.1km/h
Average wind speed gusts
15.2mph 24.5km/h
16mph 25.7km/h
16.2mph 26.1km/h
Average humidity
85%
89%
89%
Average rainfall
0.59" 15mm
0.47" 12mm
0.47" 12mm
Average rainfall days
4.3
3.3
3.3
Average snowfall
1.18" 30mm
1.89" 48mm
1.69" 43mm
Average snowfall days
10.7
12.8
10.3
Average daylight
9h 0min
9h 2min
10h 3min
Average sunshine
3h 4min
3h 1min
3h 3min
Average sunshine days
18.6
18.7
16.2
Average UV index
1
1
2
Average cloud cover
64%
66%
63%
Average visibility
6mi 9.7km
5mi 8km
5mi 8km

Average temperature in January
Juneau, WI

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).

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Average pressure in January
Juneau, WI

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).

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Average wind speed in January
Juneau, WI

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).

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Average humidity in January
Juneau, WI

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%).

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Average rainfall in January
Juneau, WI

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").

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Average rainfall days in January
Juneau, WI

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).

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Average snowfall in January
Juneau, WI

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").

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Average snowfall days in January
Juneau, WI

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).

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Average daylight in January /
Average sunshine in January
Juneau, WI

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).

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Average sunshine days in January
Juneau, WI

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).

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Average UV index in January
Juneau, WI

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).

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Average cloud cover in January
Juneau, WI

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).

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Average visibility in January
Juneau, WI

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).

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Juneau, Wisconsin, USA

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