August Weather in Richland, United States

Last updated: June 24, 2025

In August, the average temperature in Richland, United States is a pleasant 23°C (74°F). Expect a minimum of 11°C (52°F) and a soaring maximum of 37°C (99°F). With an average humidity of 77%, prepare for some moisture in the air. Rainfall can amount to 70 mm (2.8 in) across 7 days, so don't forget your umbrella!

August Temperature in Richland

In August in Richland, the average temperature is 23°C (74°F), with maximums reaching up to 37°C (99°F) and minimums dropping as low as 11°C (52°F). This range makes it an ideal time for travelers seeking warmth while also enjoying cooler evenings.

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

The chart illustrates August temperature patterns in Richland, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Richland, August typically has an average temperature of 23°C (74°F), with highs reaching up to 37°C (99°F) and lows dropping to around 11°C (52°F).

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

August Precipitation in Richland

In Richland in August, the precipitation amount is 70 mm (2.8 in) over a span of 7 days.

August Precipitation Trends in Richland

The chart displays monthly precipitation patterns in Richland, 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 Richland, August typically receives around 70 mm (2.8 inches) of precipitation spread over approximately 7 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 Richland

In Richland in August, humidity is 77%. With an average temperature of 23°C (74°F), this humidity feels like being enveloped in a warm, sticky blanket, making travel somewhat uncomfortable and requiring frequent hydration breaks to enjoy the sights without feeling overheated.

August Average Humidity in Richland

This chart illustrates the average monthly humidity levels in Richland, 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 Richland is approximately 77%, 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 Richland

In Richland 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 Richland.

Maximum UV Index Levels in Richland for August

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

Data source: Richland 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 Richland Compares to Other Months

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

This table compares monthly weather conditions in Richland, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (24°F)	50 mm (2.0 inches)	81%	moderate
February Weather	-4°C (26°F)	56 mm (2.2 inches)	81%	moderate
March Weather	5°C (41°F)	87 mm (3.4 inches)	81%	high
April Weather	10°C (50°F)	81 mm (3.2 inches)	82%	very high
May Weather	17°C (63°F)	151 mm (5.9 inches)	78%	very high
June Weather	24°C (75°F)	137 mm (5.4 inches)	81%	extreme
July Weather	25°C (77°F)	70 mm (2.8 inches)	79%	very high
August Weather	23°C (74°F)	70 mm (2.8 inches)	77%	very high
September Weather	20°C (69°F)	121 mm (4.8 inches)	78%	very high
October Weather	12°C (54°F)	126 mm (5.0 inches)	78%	high
November Weather	4°C (39°F)	52 mm (2.1 inches)	87%	moderate
December Weather	0°C (32°F)	45 mm (1.8 inches)	84%	moderate