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May Weather in La Crosse, United States

Last updated: June 24, 2025

In La Crosse, United States, the average temperature in May hovers around 21°C (69°F). However, temperatures can fluctuate, with a minimum of 3°C (38°F) and a maximum that can soar to 36°C (97°F). Expect 119 mm (4.7 in) of precipitation spread over 10 days, accompanied by a high average humidity of 82%.

May Temperature in La Crosse

In May in La Crosse, the average temperature is 21°C (69°F). The maximum can reach 36°C (97°F), while the minimum can be as low as 3°C (38°F). This temperature range makes La Crosse an ideal destination for travelers looking to enjoy a variety of outdoor activities, from warm sunny days to cooler evenings.

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

The chart illustrates May 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, May typically has an average temperature of 21°C (69°F), with highs reaching up to 36°C (97°F) and lows dropping to around 3°C (38°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.

May Precipitation in La Crosse

In La Crosse in May, the total precipitation amount is 119 mm (4.7 in) over the span of 10 days.

May Precipitation Trends in La Crosse

The chart displays monthly precipitation patterns in La Crosse, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In La Crosse, May typically receives around 119 mm (4.7 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec83104821041191201011421041027998
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in La Crosse

In La Crosse in May humidity is 82%. With an average temperature of 21°C (69°F), this humidity feels like a sweltering embrace, making outdoor activities feel more strenuous and prompting travelers to seek shade and cooling breezes.

May Average Humidity in La Crosse

This chart illustrates the average monthly humidity levels in La Crosse, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in La Crosse is approximately 82%, 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 May generated using information from the Copernicus Climate Change Service.

May UV Index in La Crosse

In La Crosse in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in La Crosse.

Maximum UV Index Levels in La Crosse for May

The chart shows the monthly maximum UV Index (UVI) for La Crosse in May, 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 May, the maximum UV index in La Crosse typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3679101111109853
Data source: La Crosse May 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 May 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 May’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 May’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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