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August Weather in Pullman, United States

Last updated: June 24, 2025

In August, the average temperature in Pullman, United States hovers around 23°C (74°F), with a minimum dipping to 7°C (45°F) and a maximum soaring to 39°C (103°F). You'll experience an average precipitation of just 8 mm (0.3 in) over about 2 days, while the humidity stays around a comfortable 64%.

August Temperature in Pullman

In August in Pullman, the average temperature is 23°C (74°F). Maximum temperatures can reach 39°C (103°F), while minimums can drop as low as 7°C (45°F). It's advisable to pack both lightweight clothing for the warm days and warmer layers for the cooler evenings during your travels.

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

The chart illustrates August temperature patterns in Pullman, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pullman, August typically has an average temperature of 23°C (74°F), with highs reaching up to 39°C (103°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec333341485765747363494033
Data source: Temperature data for Pullman 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 Pullman

In Pullman in August, the precipitation amount is 8 mm (0.3 in) over the course of 2 days.

August Precipitation Trends in Pullman

The chart displays monthly precipitation patterns in Pullman, 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 Pullman, August typically receives around 8 mm (0.3 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec7098685752273822648285
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Pullman

In Pullman in August, humidity is 64%. With an average temperature of 23°C (74°F), this humidity feels like a warm blanket wrapping around you, making outdoor exploration enjoyable yet slightly sticky, so it's best to stay hydrated and take breaks in the shade while traveling.

August Average Humidity in Pullman

This chart illustrates the average monthly humidity levels in Pullman, 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 Pullman is approximately 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%89%87%84%78%78%77%64%62%79%87%90%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Pullman

In Pullman 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 Pullman.

Maximum UV Index Levels in Pullman for August

The chart shows the monthly maximum UV Index (UVI) for Pullman 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 Pullman typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457991097532
Data source: Pullman 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 Pullman Compares to Other Months

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

This table compares monthly weather conditions in Pullman, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)70 mm (2.8 inches)89%low
February Weather0°C (33°F)98 mm (3.9 inches)89%moderate
March Weather5°C (41°F)68 mm (2.7 inches)87%moderate
April Weather9°C (48°F)57 mm (2.2 inches)84%high
May Weather14°C (57°F)52 mm (2.1 inches)77%very high
June Weather18°C (65°F)27 mm (1.1 inches)78%very high
July Weather24°C (75°F)3 mm (0.1 inches)77%very high
August Weather23°C (74°F)8 mm (0.3 inches)64%very high
September Weather17°C (63°F)22 mm (0.9 inches)62%high
October Weather9°C (49°F)64 mm (2.5 inches)79%moderate
November Weather4°C (40°F)82 mm (3.2 inches)87%moderate
December Weather1°C (33°F)85 mm (3.3 inches)90%low

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