August Weather in Black River Falls, United States

Last updated: June 24, 2025

In August, the average temperature in Black River Falls, United States hovers around 21°C (70°F), offering a pleasant climate for visitors. However, be prepared for some variability, as temperatures can dip to a chilly 9°C (49°F) and soar to a warm 33°C (92°F). Precipitation is notable, with an average of 123 mm (4.8 in) spread across 12 rainy days, and the average humidity sits at a comfortable 78%.

August Temperature in Black River Falls

In August in Black River Falls, the average temperature is 21°C (70°F), with maximums reaching up to 33°C (92°F) and minimums dropping as low as 9°C (49°F). This mild climate makes Black River Falls an ideal destination for travelers seeking comfortable weather for outdoor activities.

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

The chart illustrates August temperature patterns in Black 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 Black River Falls, August typically has an average temperature of 21°C (70°F), with highs reaching up to 33°C (92°F) and lows dropping to around 9°C (49°F).

Data source: Temperature data for Black River Falls generated using information from the Copernicus Climate Change Service.

August Precipitation in Black River Falls

In Black River Falls in August, the precipitation amount is 123 mm (4.8 in) during a period of 12 days.

August Precipitation Trends in Black River Falls

The chart displays monthly precipitation patterns in Black 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 Black River Falls, August typically receives around 123 mm (4.8 inches) of precipitation spread over approximately 12 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

August Humidity in Black River Falls

In Black River Falls in August, humidity is 78%. With an average temperature of 21°C (70°F), this humidity feels like a warm, enveloping blanket that can leave travelers feeling sticky and slightly fatigued, making it important to stay hydrated and take frequent breaks from outdoor activities.

August Average Humidity in Black River Falls

This chart illustrates the average monthly humidity levels in Black 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 Black River Falls is approximately 78%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Black River Falls

In Black River Falls in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Black River Falls.

Maximum UV Index Levels in Black River Falls for August

The chart shows the monthly maximum UV Index (UVI) for Black 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 Black River Falls typically reaches 9, which falls under the very high exposure category.

Data source: Black 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 Black River Falls Compares to Other Months

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

This table compares monthly weather conditions in Black River Falls, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (19°F)	34 mm (1.3 inches)	88%	low
February Weather	-7°C (20°F)	52 mm (2.0 inches)	89%	moderate
March Weather	1°C (35°F)	57 mm (2.3 inches)	86%	moderate
April Weather	7°C (45°F)	89 mm (3.5 inches)	85%	very high
May Weather	15°C (59°F)	133 mm (5.2 inches)	79%	very high
June Weather	21°C (70°F)	133 mm (5.2 inches)	80%	very high
July Weather	23°C (73°F)	109 mm (4.3 inches)	80%	very high
August Weather	21°C (70°F)	123 mm (4.8 inches)	78%	very high
September Weather	18°C (64°F)	104 mm (4.1 inches)	80%	high
October Weather	10°C (49°F)	114 mm (4.5 inches)	84%	moderate
November Weather	1°C (35°F)	52 mm (2.1 inches)	89%	moderate
December Weather	-4°C (26°F)	47 mm (1.9 inches)	85%	low