August weather forecast
Corvallis, OR

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A large river with two bridges across it in the city of Corvalis, Oregon, home to the famed Oregon State University
A large river with two bridges across it in the city of Corvalis, Oregon, home to the famed Oregon State University

Weather in August

August continues to bath Corvallis, Oregon in warm, sunny weather. Although temperatures slightly decrease compared to July, they remain comfortably high. Similarly, daylight hours decrease modestly but still provide ample time for outdoor activities. This period shows a slight increase in rainfall to 0.47" (12mm) while maintaining the overall dry summer atmosphere. The proliferation of clear skies, along with warm temperatures, make August an inviting month for locals and visitors alike.

Temperature

August is the month that records the highest temperatures in Corvallis, with averages ranging from a high of 80.4°F (26.9°C) to a low of 52°F (11.1°C).

Humidity

The least humid month in Corvallis, Oregon, is August, with an average relative humidity of 69%.

Rainfall

In Corvallis, in August, during 4.5 rainfall days, 0.47" (12mm) of precipitation is typically accumulated. In Corvallis, during the entire year, the rain falls for 169.2 days and collects up to 30.28" (769mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Corvallis, Oregon, the average length of the day in August is 13h and 59min.
On the first day of August, sunrise is at 6:00 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:50 pm PDT.

Sunshine

The months with the most sunshine in Corvallis are July and August, with an average of 10.8h of sunshine.

UV index

June through August, with an average maximum UV index of 5, are months with the highest UV index in Corvallis. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: A maximum high UV index of 5 in August translates into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
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Frequently asked questions

What month is the hottest in Corvallis?

August, recording an average high temperature of 80.4°F (26.9°C) and a low temperature of 52°F (11.1°C), is Corvallis's warmest month.

What are the temperatures in Corvallis in August?

During August, Corvallis experiences an average high-temperature of 80.4°F (26.9°C) and a low-temperature of 52°F (11.1°C).

What is the least humid month in Corvallis?

With an average relative humidity of 69%, August is the least humid month in Corvallis, Oregon.

What is the average humidity in August in Corvallis?

In August, the average relative humidity is 69%.

How many days does it rain in August in Corvallis?

In Corvallis, in August, during 4.5 rainfall days, 0.47" (12mm) of precipitation is typically accumulated.

When it does not snow in Corvallis?

In Corvallis, Oregon, snow does not fall in April through October.

How many hours of daylight does Corvallis have in August?

In Corvallis, Oregon, the average day length in August is 13h and 59min.

What time are sunrise and sunset in August in Corvallis?

On the first day of August in Corvallis, Oregon, sunrise is at 6:00 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:50 pm PDT.

What are the months with the most sunshine in Corvallis?

July and August, with an average of 10.8h of sunshine, are months with the most sunshine in Corvallis, Oregon.

How long on average sun shines in August in Corvallis?

The average sunshine duration in August is 10.8h.

What is the month with the highest UV index in Corvallis?

June through August, with an average maximum UV index of 5, are months with the highest UV index in Corvallis, Oregon.

How high is the UV index in August in Corvallis?

In Corvallis, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Corvallis, OR

Average temperature in August - Corvallis, OR
  • Average high temperature in August: 80.4°F

The warmest month (with the highest average high temperature) is August (80.4°F).
The month with the lowest average high temperature is December (44.8°F).

  • Average low temperature in August: 52°F

The month with the highest average low temperature is August (52°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).

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Average pressure in August
Corvallis, OR

Average pressure in August - Corvallis, OR
  • Average pressure in August: 30.01"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).

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Average wind speed in August
Corvallis, OR

Average wind speed in August - Corvallis, OR
  • Average wind speed in August: 4mph

The windiest month (with the highest average wind speed) is March (4.9mph).
The calmest month (with the lowest average wind speed) is September (3.9mph).

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Average humidity in August
Corvallis, OR

Average humidity in August - Corvallis, OR
  • Average humidity in August: 69%

The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (69%).

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Average rainfall in August
Corvallis, OR

Average rainfall in August - Corvallis, OR
  • Average rainfall in August: 0.47"

The wettest month (with the highest rainfall) is December (4.8").
The driest month (with the least rainfall) is July (0.28").

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Average rainfall days in August
Corvallis, OR

Average rainfall days in August - Corvallis, OR
  • Average rainfall days in August: 4.5 days

The month with the highest number of rainy days is March (20.9 days).
The month with the least rainy days is August (4.5 days).

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Average snowfall in August
Corvallis, OR

Average snowfall in August - Corvallis, OR
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.77").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in August
Corvallis, OR

Average snowfall days in August - Corvallis, OR
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in August /
Average sunshine in August
Corvallis, OR

Average daylight in August / Average sunshine in August - Corvallis, OR
  • Average daylight in August: 14h and 0min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in August: 10h and 5min

The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).

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Average sunshine days in August
Corvallis, OR

Average sunshine days in August - Corvallis, OR
  • Average sunshine days in August: 23.6 days

The month with the most sunshine days is July (24.3 days).
The month with the least sunshine days is February (8.4 days).

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Average UV index in August
Corvallis, OR

Average UV index in August - Corvallis, OR
  • Average UV index in August: 5

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in August
Corvallis, OR

Average cloud cover in August - Corvallis, OR
  • Average cloud cover in August: 25

The month with the most cloud cover is February (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 25).

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Average visibility in August
Corvallis, OR

Average visibility in August - Corvallis, OR
  • Average visibility in August: 5mi

The months with the highest visibility are June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, May, November and December (4mi).

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Corvallis, Oregon, USA

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