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August Weather in East Washington, United States

Last updated: June 24, 2025

In August, the average temperature in East Washington, United States hovers around 23°C (73°F). Expect a range where the minimum can drop to 11°C (52°F) while the maximum soars to 34°C (93°F). With 88 mm (3.5 in) of precipitation spread over 14 days, it’s wise to be prepared for the occasional shower. The air can feel quite humid, with an average humidity level of 76%.

August Temperature in East Washington

In August in East Washington, the average temperature is 23°C (73°F). Maximums can reach 34°C (93°F), and minimums can be as low as 11°C (52°F). This diverse range of temperatures makes it an ideal time for travelers to enjoy both warm days and cooler evenings.

August Weather in East Washington: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in East Washington, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In East Washington, August typically has an average temperature of 23°C (73°F), with highs reaching up to 34°C (93°F) and lows dropping to around 11°C (52°F).
JanFebMarAprMayJunJulAugSepOctNovDec323642526370757368574237
Data source: Temperature data for East Washington 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 East Washington

In East Washington in August, the precipitation amount is 88 mm (3.5 in) over the course of 14 days.

August Precipitation Trends in East Washington

The chart displays monthly precipitation patterns in East Washington, 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 East Washington, August typically receives around 88 mm (3.5 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec881211121301391471428812412288106
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in East Washington

In East Washington in August humidity is 76%. With an average temperature of 23°C (73°F), this humidity feels like a warm, enveloping blanket, making outdoor activities feel more intense and prompting travelers to seek shade or cool breaks more frequently.

August Average Humidity in East Washington

This chart illustrates the average monthly humidity levels in East Washington, 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 East Washington is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%87%87%81%83%82%76%77%82%89%86%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in East Washington

In East Washington 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 East Washington.

Maximum UV Index Levels in East Washington for August

The chart shows the monthly maximum UV Index (UVI) for East Washington 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 East Washington typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: East Washington 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 East Washington Compares to Other Months

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

This table compares monthly weather conditions in East Washington, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)88 mm (3.5 inches)88%moderate
February Weather2°C (36°F)121 mm (4.8 inches)88%moderate
March Weather6°C (42°F)112 mm (4.4 inches)87%high
April Weather11°C (52°F)130 mm (5.1 inches)87%very high
May Weather17°C (63°F)138 mm (5.5 inches)81%very high
June Weather21°C (70°F)147 mm (5.8 inches)83%very high
July Weather24°C (75°F)142 mm (5.6 inches)82%very high
August Weather23°C (73°F)88 mm (3.5 inches)76%very high
September Weather20°C (68°F)124 mm (4.9 inches)77%very high
October Weather14°C (58°F)122 mm (4.8 inches)82%high
November Weather6°C (43°F)88 mm (3.5 inches)89%moderate
December Weather3°C (37°F)106 mm (4.2 inches)86%low

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