August Weather in Richardson, United States

Last updated: June 24, 2025

In August, the average temperature in Richardson, United States reaches a warm 29°C (85°F). Expect a range that can dip to a comfortable 20°C (68°F) and soar to a sweltering 40°C (104°F). During this period, you can anticipate 98 mm (3.9 in) of precipitation spread over 8 days, with an average humidity of 66%.

August Temperature in Richardson

In August in Richardson, the average temperature is 29°C (85°F), with maximums reaching up to 40°C (104°F) and minimums dipping as low as 20°C (68°F). It's a perfect time to enjoy outdoor activities and explore the vibrant atmosphere, but don't forget to stay hydrated and protect yourself from the sun!

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

The chart illustrates August temperature patterns in Richardson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Richardson, August typically has an average temperature of 29°C (85°F), with highs reaching up to 40°C (104°F) and lows dropping to around 20°C (68°F).

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

August Precipitation in Richardson

In Richardson in August, the total precipitation amount is 98 mm (3.9 in), occurring over 8 days.

August Precipitation Trends in Richardson

The chart displays monthly precipitation patterns in Richardson, 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 Richardson, August typically receives around 98 mm (3.9 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 Richardson

In Richardson in August, humidity is 66%. With an average temperature of 29°C (85°F), this humidity feels like a warm, heavy blanket wrapping around you, making traveling feel more intense as you navigate through the air, often causing you to sweat and seek shade more frequently.

August Average Humidity in Richardson

This chart illustrates the average monthly humidity levels in Richardson, 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 Richardson is approximately 66%, 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 Richardson

In Richardson 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 Richardson.

Maximum UV Index Levels in Richardson for August

The chart shows the monthly maximum UV Index (UVI) for Richardson 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 Richardson typically reaches 11, which falls under the extreme exposure category.

Data source: Richardson 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 Richardson Compares to Other Months

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

This table compares monthly weather conditions in Richardson, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (47°F)	59 mm (2.3 inches)	80%	moderate
February Weather	9°C (49°F)	102 mm (4.0 inches)	79%	high
March Weather	15°C (60°F)	120 mm (4.7 inches)	78%	very high
April Weather	18°C (65°F)	121 mm (4.8 inches)	78%	very high
May Weather	23°C (74°F)	177 mm (7.0 inches)	81%	extreme
June Weather	27°C (81°F)	86 mm (3.4 inches)	78%	extreme
July Weather	29°C (85°F)	50 mm (2.0 inches)	73%	extreme
August Weather	29°C (85°F)	98 mm (3.9 inches)	66%	extreme
September Weather	26°C (79°F)	92 mm (3.6 inches)	65%	very high
October Weather	20°C (68°F)	146 mm (5.8 inches)	72%	very high
November Weather	13°C (56°F)	58 mm (2.3 inches)	82%	high
December Weather	11°C (51°F)	67 mm (2.6 inches)	87%	moderate