January weather forecast
Mountain, WI

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Weather in January

January, like December, is a freezing cold winter month in Mountain, Wisconsin, with an average temperature varying between 21.6°F (-5.8°C) and 10.8°F (-11.8°C).

Temperature

January, noted for its average high-temperature of 21.6°F (-5.8°C) and an average low-temperature of 10.8°F (-11.8°C), is considered the coldest month.

Humidity

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

Rainfall

The months with the least rainfall are January and February Rain falls for 3.8 days and accumulates 0.87" (22mm) of rain.

Snowfall

January through May, October through December are months with snowfall. In Mountain, during January, snow falls for 14.7 days and regularly aggregates up to 5.63" (143mm) of snow. Throughout the year, there are 66.5 snowfall days, and 28.9" (734mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 13min.
On the first day of January, sunrise is at 7:32 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:59 pm CST.

Sunshine

In January, the average sunshine is 3.4h.

UV index

January, March and November, 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 low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index, 1 in January, converts into the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

January stands out as Mountain's coldest month, with temperatures ranging between an average high of 21.6°F (-5.8°C) and a low of 10.8°F (-11.8°C).

How cold is it in January?

In Mountain, 21.6°F (-5.8°C) is the average high-temperature and 10.8°F (-11.8°C) is the average low-temperature during January.

What is the most humid month?

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 Mountain, the average relative humidity in January is 89%.

What is the driest month?

The months with the least rainfall are January and February Rain falls for 3.8 days and accumulates 0.87" (22mm) of rain.

How much does it rain in January?

In Mountain, during January, the rain falls for 3.8 days and regularly aggregates up to 0.87" (22mm) of precipitation.

How much does it snow in January?

In January, it is snowing for 14.7 days. Throughout January, 5.63" (143mm) of snow is accumulated.

How many hours of daylight does Mountain have in January?

In January, the average day length is 9h and 13min.

What time are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:32 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:59 pm CST.

How many hours of sunshine does Mountain have in January?

In January, the average sunshine duration is 3.4h.

What are the months with the lowest UV index?

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

What is the UV index intensity in January?

The average daily maximum UV index in January is 1. A UV Index of 2, and less, symbolizes a low health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Mountain, WI

Average temperature in January - Mountain, WI
  • Average high temperature in January: 21.6°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 (21.6°F).

  • Average low temperature in January: 10.8°F

The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

Average pressure in January
Mountain, WI

Average pressure in January - Mountain, WI
  • Average pressure in January: 30.06"Hg

The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in January
Mountain, WI

Average wind speed in January - Mountain, WI
  • Average wind speed in January: 8.2mph

The windiest month (with the highest average wind speed) is April (8.4mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

Average humidity in January
Mountain, WI

Average humidity in January - Mountain, 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 May (73%).

Average rainfall in January
Mountain, WI

Average rainfall in January - Mountain, WI
  • Average rainfall in January: 0.87"

The wettest month (with the highest rainfall) is June (2.6").
The driest months (with the least rainfall) are January and February (0.87").

Average rainfall days in January
Mountain, WI

Average rainfall days in January - Mountain, WI
  • Average rainfall days in January: 3.8 days

The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (3.8 days).

Average snowfall in January
Mountain, WI

Average snowfall in January - Mountain, WI
  • Average snowfall in January: 5.63"

The month with the highest snowfall is December (6.06").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Mountain, WI

Average snowfall days in January - Mountain, WI
  • Average snowfall days in January: 14.7 days

The month with the highest number of snowfall days is January (14.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Mountain, WI
  • Average daylight in January: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in January: 3h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).

Average sunshine days in January
Mountain, WI

Average sunshine days in January - Mountain, WI
  • Average sunshine days in January: 16.8 days

The months with the most sunshine days are September and December (16.9 days).
The month with the least sunshine days is April (12.8 days).

Average UV index in January
Mountain, WI

Average UV index in January - Mountain, WI
  • Average UV index in January: 1

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, March and November (UV index 1).

Average cloud cover in January
Mountain, WI

Average cloud cover in January - Mountain, WI
  • Average cloud cover in January: 65

The month with the most cloud cover is February (Cloud cover 66).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in January
Mountain, WI

Average visibility in January - Mountain, WI
  • Average visibility in January: 5mi

The months with the highest visibility are April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, March, July, August, September and December (5mi).

Mountain, Wisconsin, USA

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