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August Weather in Richland, United States

Last updated: June 24, 2025

In August, the average temperature in Richland, United States is a pleasant 21°C (70°F). Visitors can expect a minimum of 9°C (48°F) and a comfortable maximum of 31°C (89°F). With an average precipitation of 123 mm (4.8 in) spread over 13 days, a light raincoat might come in handy. The weather is typically humid with an average humidity of 76%, creating a warm and inviting atmosphere.

August Temperature in Richland

In August in Richland, the average temperature is 21°C (70°F). Maximum temperatures can reach up to 31°C (89°F), while minimums can drop to as low as 9°C (48°F). This makes Richland an ideal destination for travelers seeking pleasant weather and a comfortable climate during their stay.

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 21°C (70°F), with highs reaching up to 31°C (89°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec232632445766717063523829
Data source: Temperature data for Richland 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 Richland

In Richland in August, the precipitation amount is 123 mm (4.8 in) over the course of 13 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 123 mm (4.8 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec11612010614113411218412398190139142
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Richland

In Richland in August, humidity is 76%. With an average temperature of 21°C (70°F), this humidity feels like a warm, muggy embrace that can make outdoor activities feel more strenuous, prompting travelers to take frequent breaks and seek shade to stay comfortable during their adventures.

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 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%87%88%82%79%78%76%78%84%89%86%
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.
JanFebMarAprMayJunJulAugSepOctNovDec3468910997532
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.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)116 mm (4.6 inches)90%moderate
February Weather-3°C (26°F)119 mm (4.7 inches)90%moderate
March Weather0°C (33°F)106 mm (4.2 inches)87%high
April Weather7°C (45°F)141 mm (5.6 inches)88%very high
May Weather14°C (57°F)134 mm (5.3 inches)82%very high
June Weather19°C (66°F)112 mm (4.4 inches)79%very high
July Weather22°C (72°F)184 mm (7.2 inches)78%very high
August Weather21°C (70°F)123 mm (4.8 inches)76%very high
September Weather17°C (63°F)98 mm (3.9 inches)78%high
October Weather11°C (53°F)190 mm (7.5 inches)84%moderate
November Weather3°C (38°F)139 mm (5.5 inches)89%moderate
December Weather-1°C (30°F)142 mm (5.6 inches)86%low

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