August Weather in Corvallis, United States

Last updated: June 24, 2025

In Corvallis, United States, the average temperature in August is a pleasant 21°C (69°F), with temperatures ranging from a cool 7°C (44°F) to a sizzling 41°C (105°F). Expect a light sprinkle, with an average precipitation of just 5 mm (0.2 in) over 1 day, and enjoy the typical humidity levels at around 74%. Prepare for a month of varied weather that suits both sun lovers and those who enjoy a refreshing breeze!

August Temperature in Corvallis

In August in Corvallis, the average temperature is 21°C (69°F). Maximums can reach 41°C (105°F), and minimums can be as low as 7°C (44°F). Be prepared for a wide range of temperatures and pack accordingly for your travels.

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 21°C (69°F), with highs reaching up to 41°C (105°F) and lows dropping to around 7°C (44°F).

Data source: Temperature data for Corvallis generated using information from the Copernicus Climate Change Service.

August Precipitation in Corvallis

In Corvallis in August, the precipitation amount is 5 mm (0.2 in) over a duration of 1 day.

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 5 mm (0.2 inches) of precipitation spread over approximately 1 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

August Humidity in Corvallis

In Corvallis in August, humidity is 74%. With an average temperature of 21°C (69°F), this humidity feels like a warm embrace that clings to your skin, making every excursion feel slightly more intense and requiring a bit more effort with every step.

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 74%, offering insight into how humid the weather typically is during this month.

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.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (42°F)	155 mm (6.1 inches)	85%	low
February Weather	5°C (41°F)	179 mm (7.0 inches)	84%	moderate
March Weather	7°C (45°F)	133 mm (5.2 inches)	85%	high
April Weather	10°C (50°F)	117 mm (4.6 inches)	83%	high
May Weather	13°C (57°F)	60 mm (2.3 inches)	83%	very high
June Weather	17°C (63°F)	42 mm (1.7 inches)	83%	very high
July Weather	20°C (69°F)	3 mm (0.1 inches)	82%	very high
August Weather	21°C (69°F)	5 mm (0.2 inches)	74%	very high
September Weather	17°C (64°F)	61 mm (2.4 inches)	71%	very high
October Weather	12°C (53°F)	84 mm (3.3 inches)	81%	moderate
November Weather	8°C (46°F)	139 mm (5.5 inches)	87%	moderate
December Weather	5°C (41°F)	189 mm (7.4 inches)	87%	low