July weather forecast
Troutdale, OR

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Weather in July

July is the month when Troutdale experiences the highest temperatures of the year. This peak of summer is known for clear, sunny days and a nearly negligible rainfall, with precipitation averaging only 0.31" (8mm), the lowest throughout the year. The heat brings along with it a drop in relative humidity. Consistent wind speed offers a gentle breather amidst summer’s height. Summertime activities are in full swing during July, and its warm, sunny skies are best for summer festivities.

Temperature

Troutdale's transition into July sees a mild rise in the average high-temperature, edging from an agreeable 70.7°F (21.5°C) in June to a moderately hot 78.4°F (25.8°C). In July, the recorded average low-temperature, of 50°F (10°C), exhibits a significant fall from the daytime highs.

Humidity

The average relative humidity in July is 66%.

Rainfall

The month with the least rainfall in Troutdale, Oregon, is July, when the rain falls for 4.9 days and typically collects 0.31" (8mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Troutdale, the average length of the day in July is 15h and 16min.
On the first day of the month, sunrise is at 5:25 am and sunset at 9:02 pm. On the last day of July, sunrise is at 5:53 am and sunset at 8:38 pm PDT.

Sunshine

The average sunshine in July is 10.9h.

UV index

July is the month with the highest UV index, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 6 during July leads to these advisories:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. 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.
Updated: Jun 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Troutdale in July?

An average high-temperature, in July, in Troutdale, is 78.4°F (25.8°C) and the average low-temperature is 50°F (10°C).

What is the average humidity in July?

In July, the average relative humidity is 66%.

What is the driest month?

The month with the least rainfall in Troutdale is July, when the rain falls for 4.9 days and typically collects 0.31" (8mm) of precipitation.

How much does it rain in Troutdale in July?

In Troutdale, in July, it is raining for 4.9 days, with typically 0.31" (8mm) of accumulated precipitation.

When it does not snow?

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

What is the average length of the day in July?

The average day length in July in Troutdale, Oregon, is 15h and 16min.

When are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:25 am and sunset at 9:02 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 8:38 pm PDT.

How long on average sun shines in July?

The average sunshine duration in July is 10.9h.

What is the month with the highest UV index?

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

What is the UV index reading in July?

In Troutdale, the average daily maximum UV index in July is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to UV radiation.
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
Troutdale, OR

Average temperature in July - Troutdale, OR
  • Average high temperature in July: 78.4°F

The warmest month (with the highest average high temperature) is August (79.7°F).
The month with the lowest average high temperature is December (43.3°F).

  • Average low temperature in July: 50°F

The month with the highest average low temperature is August (52.7°F).
The coldest month (with the lowest average low temperature) is December (33.3°F).

Average pressure in July
Troutdale, OR

Average pressure in July - Troutdale, OR
  • Average pressure in July: 30.03"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

Average wind speed in July
Troutdale, OR

Average wind speed in July - Troutdale, OR
  • Average wind speed in July: 3.7mph

The windiest month (with the highest average wind speed) is January (6.8mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).

Average humidity in July
Troutdale, OR

Average humidity in July - Troutdale, OR
  • Average humidity in July: 66%

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (65%).

Average rainfall in July
Troutdale, OR

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

The wettest month (with the highest rainfall) is December (5.63").
The driest month (with the least rainfall) is July (0.31").

Average rainfall days in July
Troutdale, OR

Average rainfall days in July - Troutdale, OR
  • Average rainfall days in July: 4.9 days

The month with the highest number of rainy days is March (19.6 days).
The month with the least rainy days is August (4.1 days).

Average snowfall in July
Troutdale, OR

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

The month with the highest snowfall is February (1.54").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in July
Troutdale, OR

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

The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in July / Average sunshine in July - Troutdale, OR
  • Average daylight in July: 15h and 2min

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: 10h and 5min

The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).

Average sunshine days in July
Troutdale, OR

Average sunshine days in July - Troutdale, OR
  • Average sunshine days in July: 24.4 days

The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is February (8.6 days).

Average UV index in July
Troutdale, OR

Average UV index in July - Troutdale, 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).

Average cloud cover in July
Troutdale, OR

Average cloud cover in July - Troutdale, OR
  • Average cloud cover in July: 26

The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 24).

Average visibility in July
Troutdale, OR

Average visibility in July - Troutdale, 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).

Troutdale, Oregon, USA

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