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August Weather in Corvallis, United States

Last updated: June 24, 2025

In August, the average temperature in Corvallis, United States is a pleasant 18°C (65°F). Expect minimums dipping to 2°C (36°F) and occasional peaks at a warm 36°C (97°F). The region sees 21 mm (0.8 in) of precipitation over about 4 days, with an average humidity of 66%, ensuring a comfortable yet refreshing atmosphere.

August Temperature in Corvallis

In August in Corvallis, the average temperature is 18°C (65°F). Maximums can reach 36°C (97°F), and minimums can be as low as 2°C (36°F). This range makes it important for travelers to pack a variety of clothing to accommodate changing temperatures.

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

The chart illustrates August temperature patterns in Corvallis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Corvallis, August typically has an average temperature of 18°C (65°F), with highs reaching up to 36°C (97°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec232232364756666455392922
Data source: Temperature data for Corvallis 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 Corvallis

In Corvallis in August, the precipitation amount is 21 mm (0.8 in) over a span of 4 days.

August Precipitation Trends in Corvallis

The chart displays monthly precipitation patterns in Corvallis, 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 Corvallis, August typically receives around 21 mm (0.8 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec439860697277172134655863
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Corvallis

In Corvallis in August humidity is 66%. With an average temperature of 18°C (65°F), this humidity feels like a warm embrace, making travel comfortable yet slightly sticky, perfect for leisurely strolls but requiring light, breathable clothing to fully enjoy the experience.

August Average Humidity in Corvallis

This chart illustrates the average monthly humidity levels in Corvallis, 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 Corvallis is approximately 66%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%89%85%80%78%77%66%67%77%89%95%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Corvallis

In Corvallis 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 Corvallis.

Maximum UV Index Levels in Corvallis for August

The chart shows the monthly maximum UV Index (UVI) for Corvallis 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 Corvallis typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346810101098532
Data source: Corvallis 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 Corvallis Compares to Other Months

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

This table compares monthly weather conditions in Corvallis, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)43 mm (1.7 inches)93%moderate
February Weather-5°C (23°F)98 mm (3.9 inches)92%moderate
March Weather0°C (32°F)60 mm (2.4 inches)89%high
April Weather2°C (36°F)69 mm (2.7 inches)85%very high
May Weather8°C (47°F)72 mm (2.8 inches)80%very high
June Weather14°C (57°F)77 mm (3.0 inches)78%very high
July Weather19°C (66°F)17 mm (0.7 inches)77%very high
August Weather18°C (65°F)21 mm (0.8 inches)66%very high
September Weather13°C (55°F)34 mm (1.3 inches)67%very high
October Weather4°C (39°F)65 mm (2.5 inches)77%moderate
November Weather-1°C (30°F)58 mm (2.3 inches)89%moderate
December Weather-6°C (22°F)62 mm (2.5 inches)95%low

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