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August Weather in River Falls, United States

Last updated: June 24, 2025

In August, the average temperature in River Falls, United States reaches a warm 27°C (81°F). Expect a range that dips to a minimum of 19°C (66°F) and can peak at a scorching 38°C (101°F). Throughout the month, 140 mm (5.5 in) of precipitation is likely to fall over 19 days, contributing to an average humidity level of 78%. Stay prepared for a mix of warmth and occasional showers!

August Temperature in River Falls

In August in River Falls, the average temperature is 27°C (81°F), with maximums reaching up to 38°C (101°F) and minimums dipping as low as 19°C (66°F). This makes it a great time for travelers to enjoy warm weather while still having cooler evenings for relaxation.

August Weather in River Falls: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in River Falls, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In River Falls, August typically has an average temperature of 27°C (81°F), with highs reaching up to 38°C (101°F) and lows dropping to around 19°C (66°F).
JanFebMarAprMayJunJulAugSepOctNovDec515762667479818178715854
Data source: Temperature data for River Falls 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 River Falls

In River Falls in August, the total precipitation amount is 140 mm (5.5 in) over the course of 19 days.

August Precipitation Trends in River Falls

The chart displays monthly precipitation patterns in River Falls, 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 River Falls, August typically receives around 140 mm (5.5 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec1001288812312215713214011410456134
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in River Falls

In River Falls in August humidity is 78%. With an average temperature of 27°C (81°F), this humidity feels like a warm, heavy embrace that makes traveling feel both invigorating and exhausting. Moments spent outside can quickly become clammy and uncomfortable, urging travelers to seek shade and hydration as they explore.

August Average Humidity in River Falls

This chart illustrates the average monthly humidity levels in River Falls, 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 River Falls is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%82%79%77%74%70%78%78%79%74%83%86%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in River Falls

In River Falls in August, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in River Falls.

Maximum UV Index Levels in River Falls for August

The chart shows the monthly maximum UV Index (UVI) for River Falls 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 River Falls typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589111111121110864
Data source: River Falls 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 River Falls Compares to Other Months

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

This table compares monthly weather conditions in River Falls, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (51°F)100 mm (3.9 inches)83%moderate
February Weather14°C (58°F)128 mm (5.1 inches)82%very high
March Weather17°C (62°F)87 mm (3.4 inches)79%very high
April Weather19°C (67°F)123 mm (4.8 inches)77%extreme
May Weather24°C (75°F)122 mm (4.8 inches)74%extreme
June Weather26°C (79°F)157 mm (6.2 inches)70%extreme
July Weather27°C (81°F)132 mm (5.2 inches)78%extreme
August Weather27°C (81°F)140 mm (5.5 inches)78%extreme
September Weather26°C (79°F)114 mm (4.5 inches)79%very high
October Weather22°C (71°F)104 mm (4.1 inches)74%very high
November Weather14°C (58°F)56 mm (2.2 inches)83%high
December Weather12°C (54°F)134 mm (5.3 inches)86%moderate

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