January weather forecast
La Crosse, WI

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A scenic shot from above of La Crosse City in Wisconsin, with the view of the iconic Mississippi River and bridge
A scenic shot from above of La Crosse City in Wisconsin, with the view of the iconic Mississippi River and bridge

Weather in January

Beginning the year, La Crosse, Wisconsin experiences frosty and snowy conditions in January. The weather is the coldest with the lowest high temperatures of 21.6°F (-5.8°C) and plunging well below the freezing point to lows of 8.2°F (-13.2°C). This chilly ambiance is accompanied by frequent episodes of snowfall, resulting in thin layers of snow covering the landscape. As winter drags on, the climate sees a relative humidity of 90%, the highest of any month, creating a damp and cold environment. The icy days are relatively shorter with limited daylight hours, signaling the depth of winter.

Temperature

January, having an average high-temperature of 21.6°F (-5.8°C) and an average low-temperature of 8.2°F (-13.2°C), is the coldest month.

Humidity

January is the most humid month, with an average relative humidity of 90%.

Rainfall

January is the month with the least rainfall. Rain falls for 3.4 days and accumulates 0.91" (23mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In La Crosse, in January, during 11.8 snowfall days, 4.72" (120mm) of snow is typically accumulated. In La Crosse, during the entire year, snow falls for 48.3 days and aggregates up to 20.2" (513mm) of snow.

Daylight

The average length of the day in January is 9h and 22min.
On the first day of January, sunrise is at 7:38 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:13 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 3.3h of sunshine.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.
Note: In January, a regular UV index of 1 translates into these guidelines:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.

Frequently asked questions

What part of the year is the coldest?

In La Crosse, January records the average lowest temperatures, peaking at 21.6°F (-5.8°C) and reaching a low of 8.2°F (-13.2°C).

How cold is it in January?

January temperatures vary between a high-temperature of 21.6°F (-5.8°C) and a low-temperature of 8.2°F (-13.2°C).

What is the most humid month?

January is the most humid month, with an average relative humidity of 90%.

What is the average humidity in January?

In January, the average relative humidity is 90%.

What is the driest month?

January is the month with the least rainfall. Rain falls for 3.4 days and accumulates 0.91" (23mm) of precipitation.

How much does it rain in January?

In January, the rain falls for 3.4 days. Throughout January, 0.91" (23mm) of precipitation is accumulated.

How much does it snow in January?

In La Crosse, during January, snow falls for 11.8 days and regularly aggregates up to 4.72" (120mm) of snow.

How many hours of daylight does La Crosse have in January?

The average day length in January in La Crosse is 9h and 22min.

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 7:38 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:13 pm CST.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 3.3h of sunshine.

How many hours of sunshine does La Crosse have in January?

In January, the average sunshine duration is 3.3h.

What are the months with the lowest UV index?

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

What is the UV index intensity in January?

In January, the average daily maximum UV index in La Crosse is 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation.
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
La Crosse, WI

Average temperature in January - La Crosse, WI
  • Average high temperature in January: 21.6°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (21.6°F).

  • Average low temperature in January: 8.2°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).

Average pressure in January
La Crosse, WI

Average pressure in January - La Crosse, WI
  • Average pressure in January: 30.13"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in January
La Crosse, WI

Average wind speed in January - La Crosse, WI
  • Average wind speed in January: 8.9mph

The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in January
La Crosse, WI

Average humidity in January - La Crosse, WI
  • Average humidity in January: 90%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (76%).

Average rainfall in January
La Crosse, WI

Average rainfall in January - La Crosse, WI
  • Average rainfall in January: 0.91"

The wettest month (with the highest rainfall) is June (4.61").
The driest month (with the least rainfall) is January (0.91").

Average rainfall days in January
La Crosse, WI

Average rainfall days in January - La Crosse, WI
  • Average rainfall days in January: 3.4 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (3.2 days).

Average snowfall in January
La Crosse, WI

Average snowfall in January - La Crosse, WI
  • Average snowfall in January: 4.72"

The month with the highest snowfall is February (4.8").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
La Crosse, WI

Average snowfall days in January - La Crosse, WI
  • Average snowfall days in January: 11.8 days

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
La Crosse, WI

Average daylight in January / Average sunshine in January - La Crosse, 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 2min

The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

Average sunshine days in January
La Crosse, WI

Average sunshine days in January - La Crosse, WI
  • Average sunshine days in January: 17.3 days

The month with the most sunshine days is December (18.2 days).
The month with the least sunshine days is June (10.5 days).

Average UV index in January
La Crosse, WI

Average UV index in January - La Crosse, WI
  • Average UV index in January: 1

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

Average cloud cover in January
La Crosse, WI

Average cloud cover in January - La Crosse, WI
  • Average cloud cover in January: 66

The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in January
La Crosse, WI

Average visibility in January - La Crosse, WI
  • Average visibility in January: 4mi

The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).

La Crosse, Wisconsin, USA

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