August weather forecast
Corvallis, OR

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, the last month of the summer in Corvallis, is also a moderately hot month, with an average temperature fluctuating between 52°F (11.1°C) and 80.4°F (26.9°C).

Temperature

With an average high-temperature of 80.4°F (26.9°C) and an average low-temperature of 52°F (11.1°C), August is the warmest month.

Humidity

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

Rainfall

In Corvallis, Oregon, in August, it is raining for 4.5 days, with typically 0.47" (12mm) of accumulated precipitation. 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 in Corvallis.

Daylight

In Corvallis, Oregon, the average length of the day in August is 13h and 59min.
On the first day of August in Corvallis, sunrise is at 6:00 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 7:51 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 reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 5 in August interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the warmest month in Corvallis?

With an average high-temperature of 80.4°F (26.9°C) and an average low-temperature of 52°F (11.1°C), August is the warmest month.

What is the least humid month in Corvallis?

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

What is the average humidity in August in Corvallis?

In Corvallis, Oregon, the average relative humidity in August is 69%.

How many days does it rain in August in Corvallis?

In Corvallis, Oregon, in August, it is raining for 4.5 days, with typically 0.47" (12mm) of accumulated precipitation.

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

When is the sunrise / sunset in August in Corvallis?

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 6:34 am and sunset at 7:51 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 many hours of sunshine does Corvallis have in August?

The average sunshine duration in August in Corvallis is 10.8h.

What are the months 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.

What is the UV index intensity in August in Corvallis?

In Corvallis, Oregon, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
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: 13h and 59min

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 53min).

  • Average sunshine in August: 10h and 48min

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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