July weather forecastTroutdale, OR
July
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 15h and 18min
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 54min
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: 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: 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: 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: 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).
