July weather forecast
Wilsonville, OR

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A row of beautiful modern homes in a leafy suburb spot in Wilsonville, Oregon
A row of beautiful modern homes in a leafy suburb spot in Wilsonville, Oregon

Weather in July

July is the epitome of summer season in Wilsonville, Oregon. It’s the warmest month and precipitation is at its lowest. A highly notable figure is the month’s maximum temperature which amplifies up to 79.7°F (26.5°C). This clearly establishes July as the hottest month. July's dry weather along with the predominance of sunshine makes it an ideal month for any outdoor activities or events.

Temperature

As July arrives in Wilsonville, Oregon, a slight rise in the average high-temperature is observed, moving from a pleasant 71.4°F (21.9°C) in June to a warm 79.7°F (26.5°C). In July, Wilsonville experiences a significant drop from daily zeniths to an average nighttime temperature of 51.4°F (10.8°C).

Humidity

In Wilsonville, the average relative humidity in July is 67%.

Rainfall

July and August are months with the least rain when the rain falls for 4.4 days and typically aggregates up to 0.31" (8mm) of rain.

Snowfall

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

Daylight

In Wilsonville, the average length of the day in July is 15h and 14min.
On the first day of the month, sunrise is at 5:27 am and sunset at 9:02 pm. On the last day of July, in Wilsonville, sunrise is at 5:55 am and sunset at 8:39 pm PDT.

Sunshine

The average sunshine in July is 11h.

UV index

With an average maximum UV index of 6, July is the month with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: In July, the average maximum UV index of 6 translates into the following recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
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Frequently asked questions

What is the temperature in July in Wilsonville?

In July, in Wilsonville, the average high-temperature is 79.7°F (26.5°C), and the average low-temperature is 51.4°F (10.8°C).

What is the average humidity in July in Wilsonville?

The average relative humidity in July in Wilsonville is 67%.

What is the driest month in Wilsonville?

The months with the least rainfall in Wilsonville, Oregon, are July and August Rain falls for 4.4 days and accumulates 0.31" (8mm) of rain.

How many days does it rain in July in Wilsonville?

In July, the rain falls for 4.4 days. Throughout July, 0.31" (8mm) of precipitation is accumulated.

When it does not snow in Wilsonville?

April through October are months without snowfall in Wilsonville.

What is the average length of the day in July in Wilsonville?

In Wilsonville, Oregon, the average day length in July is 15h and 14min.

When is the sunrise / sunset in July in Wilsonville?

In July, on the first day of the month, sunrise is at 5:27 am and sunset at 9:02 pm. On the last day of the month, in Wilsonville, sunrise is at 5:55 am and sunset at 8:39 pm PDT.

How long on average sun shines in July in Wilsonville?

In July, the average sunshine duration in Wilsonville is 11h.

When is the highest UV index in Wilsonville?

July is the month with the highest UV index, with an average maximum UV index of 6.

What is the UV index reading in July in Wilsonville?

The average daily maximum UV index in July is 6. A UV Index of 6 to 7 symbolizes a high health 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 July
Wilsonville, OR

Average temperature in July - Wilsonville, OR
  • Average high temperature in July: 79.7°F

The warmest month (with the highest average high temperature) is August (81°F).
The month with the lowest average high temperature is December (44.2°F).

  • Average low temperature in July: 51.4°F

The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (34.3°F).

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Average pressure in July
Wilsonville, OR

Average pressure in July - Wilsonville, OR
  • Average pressure in July: 30.04"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).

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Average wind speed in July
Wilsonville, OR

Average wind speed in July - Wilsonville, OR
  • Average wind speed in July: 4mph

The windiest months (with the highest average wind speed) are January and February (5.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

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Average humidity in July
Wilsonville, OR

Average humidity in July - Wilsonville, OR
  • Average humidity in July: 67%

The months with the highest relative humidity are January, February and December (85%).
The month with the lowest relative humidity is August (65%).

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Average rainfall in July
Wilsonville, OR

Average rainfall in July - Wilsonville, OR
  • Average rainfall in July: 0.31"

The wettest month (with the highest rainfall) is December (4.49").
The driest months (with the least rainfall) are July and August (0.31").

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Average rainfall days in July
Wilsonville, OR

Average rainfall days in July - Wilsonville, OR
  • Average rainfall days in July: 4.4 days

The month with the highest number of rainy days is March (20.9 days).
The months with the least rainy days are July and August (4.4 days).

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Average snowfall in July
Wilsonville, OR

Average snowfall in July - Wilsonville, OR
  • Average snowfall in July: 0"

The month with the highest snowfall is February (1.26").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in July
Wilsonville, OR

Average snowfall days in July - Wilsonville, OR
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in July: 11h and 0min

The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

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Average sunshine days in July
Wilsonville, OR

Average sunshine days in July - Wilsonville, OR
  • Average sunshine days in July: 25 days

The month with the most sunshine days is July (25 days).
The month with the least sunshine days is March (8.3 days).

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Average UV index in July
Wilsonville, OR

Average UV index in July - Wilsonville, OR
  • Average UV index in July: 6

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in July
Wilsonville, OR

Average cloud cover in July - Wilsonville, OR
  • Average cloud cover in July: 23

The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 21).

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Average visibility in July
Wilsonville, OR

Average visibility in July - Wilsonville, OR
  • Average visibility in July: 6mi

The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).

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Wilsonville, Oregon, USA

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