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August Weather in Gresham, United States

Last updated: June 24, 2025

In Gresham, United States, the average temperature in August is a pleasant 20°C (69°F). Expect a range from a crisp 6°C (43°F) to a warm 33°C (92°F). During this month, you'll encounter 115 mm (4.5 in) of precipitation spread over 11 days, resulting in an average humidity of 73%. Ready to experience this delightful climate?

August Temperature in Gresham

In August in Gresham, the average temperature is 20°C (69°F). The maximum can reach 33°C (92°F), and the minimum can be as low as 6°C (43°F). This is a great time for travelers to enjoy mild weather while exploring the area.

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

The chart illustrates August temperature patterns in Gresham, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gresham, August typically has an average temperature of 20°C (69°F), with highs reaching up to 33°C (92°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec191932425768726862483425
Data source: Temperature data for Gresham 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 Gresham

In Gresham in August, the total precipitation amount is 115 mm (4.5 in) spread over 11 days.

August Precipitation Trends in Gresham

The chart displays monthly precipitation patterns in Gresham, 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 Gresham, August typically receives around 115 mm (4.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec374959101106107111115771005055
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Gresham

In Gresham in August humidity is 73%. With an average temperature of 20°C (69°F), this humidity feels like a warm embrace, making travel slightly sticky but ultimately comfortable as long as you stay hydrated and take breaks in the shade.

August Average Humidity in Gresham

This chart illustrates the average monthly humidity levels in Gresham, 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 Gresham is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%90%87%84%77%75%75%73%78%84%89%87%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Gresham

In Gresham 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 Gresham.

Maximum UV Index Levels in Gresham for August

The chart shows the monthly maximum UV Index (UVI) for Gresham 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 Gresham typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457910997532
Data source: Gresham 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 Gresham Compares to Other Months

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

This table compares monthly weather conditions in Gresham, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (19°F)37 mm (1.5 inches)89%low
February Weather-7°C (19°F)49 mm (1.9 inches)90%moderate
March Weather0°C (32°F)59 mm (2.3 inches)87%moderate
April Weather6°C (43°F)101 mm (4.0 inches)84%high
May Weather14°C (57°F)106 mm (4.2 inches)77%very high
June Weather20°C (68°F)107 mm (4.2 inches)75%very high
July Weather22°C (72°F)111 mm (4.4 inches)74%very high
August Weather20°C (69°F)115 mm (4.5 inches)73%very high
September Weather16°C (62°F)77 mm (3.0 inches)78%high
October Weather9°C (49°F)100 mm (3.9 inches)84%moderate
November Weather1°C (34°F)50 mm (2.0 inches)89%moderate
December Weather-4°C (25°F)55 mm (2.2 inches)87%low

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