January weather forecastLa Crosse, WI

January
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 9h and 24min
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 18min
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: 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: 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: 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: 4mi
The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).





