July 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 July

July marks the height of summer in Corvallis, Oregon. This period offers the highest temperatures, with heat intensifying to a high of 78.6°F (25.9°C). The lengthiest daytime and the least rainfall of the year make it a time for enjoying outdoor pursuits. Relative humidity continues to decrease and is at one of the lowest points of the year. The lengthy, warm, sunny periods are a constant, vibrant reminder of the summer's peak.

Temperature

July witnesses a subtle temperature ascent, adjusting from a pleasant 70.3°F (21.3°C) in June to a warm 78.6°F (25.9°C). Despite substantial daily fluctuations, the average low-temperature in Corvallis is a cool 50.4°F (10.2°C) during July.

Humidity

In Corvallis, the average relative humidity in July is 70%.

Rainfall

July is the month with the least rainfall. Rain falls for 4.8 days and accumulates 0.28" (7mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in July is 15h and 9min.
On the first day of the month, sunrise is at 5:32 am and sunset at 9:01 pm. On the last day of July, sunrise is at 5:59 am and sunset at 8:39 pm PDT.

Sunshine

The months with the most sunshine 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. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: In July, the maximum UV index of 5 translates into these guidelines:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.

Frequently asked questions

What is the usual temperature for Corvallis in July?

The high-temperature, in July, in Corvallis, is 78.6°F (25.9°C), while the low-temperature averages to 50.4°F (10.2°C).

What is the average humidity in July in Corvallis?

The average relative humidity in July is 70%.

What is the driest month?

July is the month with the least rainfall. Rain falls for 4.8 days and accumulates 0.28" (7mm) of precipitation.

How much does it rain in Corvallis in July?

In Corvallis, in July, it is raining for 4.8 days, with typically 0.28" (7mm) of accumulated precipitation.

When it does not snow?

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

What is the average length of the day in July?

In Corvallis, the average day length in July is 15h and 9min.

When are sunrise and sunset in July?

On the first day of July in Corvallis, sunrise is at 5:32 am and sunset at 9:01 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 8:39 pm PDT.

What are the months with the most sunshine?

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

How many hours of sunshine does Corvallis have in July?

The average sunshine duration in July is 10.8h.

When is the highest UV index?

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

What is the UV index intensity in July?

In Corvallis, the average daily maximum UV index in July is 5. A UV Index reading of 3 to 5 represents a medium health risk 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 July
Corvallis, OR

Average temperature in July - Corvallis, OR
  • Average high temperature in July: 78.6°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 July: 50.4°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).

Average pressure in July
Corvallis, OR

Average pressure in July - Corvallis, OR
  • Average pressure in July: 30.05"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).

Average wind speed in July
Corvallis, OR

Average wind speed in July - Corvallis, OR
  • Average wind speed in July: 4.3mph

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).

Average humidity in July
Corvallis, OR

Average humidity in July - Corvallis, OR
  • Average humidity in July: 70%

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

Average rainfall in July
Corvallis, OR

Average rainfall in July - Corvallis, OR
  • Average rainfall in July: 0.28"

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

Average rainfall days in July
Corvallis, OR

Average rainfall days in July - Corvallis, OR
  • Average rainfall days in July: 4.8 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).

Average snowfall in July
Corvallis, OR

Average snowfall in July - Corvallis, OR
  • Average snowfall in July: 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").

Average snowfall days in July
Corvallis, OR

Average snowfall days in July - Corvallis, OR
  • Average snowfall days in July: 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).

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

Average daylight in July / Average sunshine in July - Corvallis, OR
  • Average daylight in July: 15h and 1min

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 July: 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).

Average sunshine days in July
Corvallis, OR

Average sunshine days in July - Corvallis, OR
  • Average sunshine days in July: 24.3 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).

Average UV index in July
Corvallis, OR

Average UV index in July - Corvallis, OR
  • Average UV index in July: 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).

Average cloud cover in July
Corvallis, OR

Average cloud cover in July - Corvallis, OR
  • Average cloud cover in July: 28

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

Average visibility in July
Corvallis, OR

Average visibility in July - Corvallis, OR
  • Average visibility in July: 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).

Corvallis, Oregon, USA

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