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August Weather in La Crosse, United States

Last updated: June 24, 2025

In La Crosse, United States, the average temperature in August hovers around 25°C (78°F), offering a warm climate for visitors. However, temperatures can vary significantly, with a minimum of 13°C (56°F) and a blazing maximum of 40°C (105°F). Expect about 72 mm (2.8 in) of precipitation spread over 8 days, contributing to an average humidity of approximately 80%. Whether you're strolling through vibrant streets or relaxing outdoors, be prepared for the diverse weather conditions this month has to offer!

August Temperature in La Crosse

In August in La Crosse, the average temperature is 25°C (78°F). Maximums can reach 40°C (105°F) and minimums can be as low as 13°C (56°F). Pack accordingly for warm days and cooler evenings, and enjoy your trip!

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

The chart illustrates August 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, August typically has an average temperature of 25°C (78°F), with highs reaching up to 40°C (105°F) and lows dropping to around 13°C (56°F).
JanFebMarAprMayJunJulAugSepOctNovDec313245536477817772554436
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.

August Precipitation in La Crosse

In La Crosse in August, the precipitation amount is 72 mm (2.8 in) over the course of 8 days.

August Precipitation Trends in La Crosse

The chart displays monthly precipitation patterns in La Crosse, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In La Crosse, August typically receives around 72 mm (2.8 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec2420694413856677258672529
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in La Crosse

In La Crosse in August, humidity is 80%. With an average temperature of 25°C (78°F), this humidity feels like a warm blanket enveloping you, making every outdoor activity feel more strenuous and steaming, while also causing you to seek out shade and refreshment more frequently.

August Average Humidity in La Crosse

This chart illustrates the average monthly humidity levels in La Crosse, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in La Crosse is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%78%67%70%82%81%80%80%74%71%79%83%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in La Crosse

In La Crosse in August, 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 August

The chart shows the monthly maximum UV Index (UVI) for La Crosse in August, 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 August, the maximum UV index in La Crosse typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec4579101111109743
Data source: La Crosse August 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 August 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 August’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 August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)24 mm (0.9 inches)74%moderate
February Weather0°C (33°F)20 mm (0.8 inches)78%moderate
March Weather7°C (46°F)69 mm (2.7 inches)67%high
April Weather12°C (54°F)44 mm (1.7 inches)70%very high
May Weather18°C (64°F)138 mm (5.4 inches)82%very high
June Weather25°C (77°F)56 mm (2.2 inches)81%extreme
July Weather27°C (81°F)67 mm (2.6 inches)80%extreme
August Weather25°C (78°F)72 mm (2.8 inches)80%very high
September Weather22°C (72°F)58 mm (2.3 inches)73%very high
October Weather13°C (56°F)67 mm (2.6 inches)71%high
November Weather7°C (44°F)25 mm (1.0 inches)79%moderate
December Weather2°C (36°F)29 mm (1.1 inches)83%moderate

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