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January Weather in La Crosse, United States

Last updated: June 24, 2025

In January, the average temperature in La Crosse, United States hovers around 5°C (42°F). While temperatures can drop to a chilly -18°C (1°F) at their lowest, they can also soar to a pleasant 24°C (75°F) at their peak. Expect around 83 mm (3.2 in) of precipitation over 9 days, contributing to an average humidity of 84%. This makes for a uniquely refreshing atmosphere, blending cool breezes with occasional rainfall.

January Temperature in La Crosse

In January in La Crosse, the average temperature is 5°C (42°F). Maximum temperatures can reach 24°C (75°F), while minimums can drop as low as -18°C (-1°F). Therefore, travelers should be prepared for a wide range of temperatures and pack accordingly.

January Weather in La Crosse: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in La Crosse, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In La Crosse, January typically has an average temperature of 5°C (42°F), with highs reaching up to 24°C (75°F) and lows dropping to around -18°C (-1°F).
JanFebMarAprMayJunJulAugSepOctNovDec414651616976807873645045
Data source: Temperature data for La Crosse generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in La Crosse

In La Crosse, in January, the precipitation amount is 83 mm (3.2 in) spread over a period of 9 days.

January Precipitation Trends in La Crosse

The chart displays monthly precipitation patterns in La Crosse, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In La Crosse, January typically receives around 83 mm (3.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec83104821041191201011421041027998
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in La Crosse

In La Crosse in January, humidity is 84%. With an average temperature of 5°C (42°F), this humidity feels like a thick blanket wrapping around you, making every step feel heavier while traveling.

January Average Humidity in La Crosse

This chart illustrates the average monthly humidity levels in La Crosse, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in La Crosse is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%84%82%83%83%79%77%75%81%87%85%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in La Crosse

In La Crosse in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in La Crosse, you can check the information here.

Maximum UV Index Levels in La Crosse for January

The chart shows the monthly maximum UV Index (UVI) for La Crosse in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in La Crosse typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3679101111109853
Data source: La Crosse January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How January Weather in La Crosse Compares to Other Months

Weather in La Crosse varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in La Crosse, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in La Crosse, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)83 mm (3.2 inches)84%moderate
February Weather8°C (47°F)104 mm (4.1 inches)84%high
March Weather11°C (51°F)82 mm (3.2 inches)84%high
April Weather16°C (61°F)104 mm (4.1 inches)82%very high
May Weather21°C (69°F)119 mm (4.7 inches)82%very high
June Weather24°C (76°F)120 mm (4.7 inches)83%extreme
July Weather27°C (80°F)101 mm (4.0 inches)79%extreme
August Weather26°C (78°F)142 mm (5.6 inches)77%very high
September Weather23°C (74°F)104 mm (4.1 inches)75%very high
October Weather18°C (65°F)102 mm (4.0 inches)81%very high
November Weather10°C (51°F)79 mm (3.1 inches)87%moderate
December Weather7°C (45°F)98 mm (3.9 inches)85%moderate

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