August Weather in Walnut, United States

Last updated: June 24, 2025

In August, the average temperature in Walnut, United States hovers around 23°C (74°F). Expect a comfortable range with minimum temperatures dipping to 11°C (53°F) and maximums reaching up to 35°C (95°F). Typically, 68 mm (2.7 in) of precipitation falls over about 8 days, contributing to an average humidity level of 81%. Enjoy the climate while staying prepared for occasional showers!

August Temperature in Walnut

In August in Walnut, the average temperature is 23°C (74°F). Maximum temperatures can reach 35°C (95°F), while minimums can dip to as low as 11°C (53°F). This makes it a perfect time for travelers to enjoy the pleasant weather while exploring the attractions.

August Weather in Walnut: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Walnut, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Walnut, August typically has an average temperature of 23°C (74°F), with highs reaching up to 35°C (95°F) and lows dropping to around 11°C (53°F).

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

August Precipitation in Walnut

In Walnut in August, the precipitation amount is 68 mm (2.7 in) spread over 8 days.

August Precipitation Trends in Walnut

The chart displays monthly precipitation patterns in Walnut, 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 Walnut, August typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 8 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 Walnut

In Walnut in August, humidity is 81%. With an average temperature of 23°C (74°F), this humidity feels like a warm, heavy blanket draped over your skin, making travel feel a bit more sluggish and requiring plenty of water breaks to stay comfortable.

August Average Humidity in Walnut

This chart illustrates the average monthly humidity levels in Walnut, 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 Walnut is approximately 81%, 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 Walnut

In Walnut 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 Walnut.

Maximum UV Index Levels in Walnut for August

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

Data source: Walnut 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 Walnut Compares to Other Months

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

This table compares monthly weather conditions in Walnut, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	58 mm (2.3 inches)	82%	moderate
February Weather	-3°C (27°F)	62 mm (2.5 inches)	83%	moderate
March Weather	4°C (40°F)	94 mm (3.7 inches)	84%	high
April Weather	10°C (49°F)	114 mm (4.5 inches)	85%	very high
May Weather	17°C (62°F)	173 mm (6.8 inches)	79%	very high
June Weather	23°C (73°F)	146 mm (5.7 inches)	82%	very high
July Weather	24°C (76°F)	100 mm (3.9 inches)	80%	very high
August Weather	23°C (74°F)	68 mm (2.7 inches)	81%	very high
September Weather	20°C (69°F)	110 mm (4.3 inches)	80%	very high
October Weather	12°C (55°F)	127 mm (5.0 inches)	82%	high
November Weather	4°C (39°F)	55 mm (2.2 inches)	88%	moderate
December Weather	0°C (33°F)	49 mm (1.9 inches)	84%	low