Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
With the onset of July, the average high-temperature subtly transitions from an agreeable 70.2°F (21.2°C) in June to a moderately hot 77.5°F (25.3°C). Marked by a significant drop from the daytime highs, Forest Grove's average low-temperature in July stands at a cool 51.4°F (10.8°C).Humidity
The average relative humidity in July is 70%.Rainfall
July and August are months with the least rain in Forest Grove, Oregon, when the rain falls for 6.5 days and typically aggregates up to 0.47" (12mm) of rain.Snowfall
In Forest Grove, snow does not fall in April through October.Daylight
In Forest Grove, the average length of the day in July is 15h and 16min.On the first day of July, sunrise is at 5:28 am and sunset at 9:04 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 8:41 pm PDT.
Sunshine
In Forest Grove, the average sunshine in July is 10.2h.UV index
The months with the highest UV index are June and July, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In July, a daily maximum UV index of 5 leads to the following instructions:
Ensure safety - Sun damage prevention is strongly urged. Around midday, solar radiation is most harmful; hence, exposure should be limited. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in July in Forest Grove?
What is the average humidity in July?
What is the driest month?
How many days does it rain in July?
When it does not snow?
How many hours of daylight does Forest Grove have in July?
What time are sunrise and sunset in July?
How long on average sun shines in July in Forest Grove?
What are the months with the highest UV index?
How high is the UV index in July?
Average temperature in July
Forest Grove, OR
- Average high temperature in July: 77.5°F
The warmest month (with the highest average high temperature) is August (79.3°F).
The month with the lowest average high temperature is December (43°F).
- Average low temperature in July: 51.4°F
The month with the highest average low temperature is August (53.2°F).
The coldest month (with the lowest average low temperature) is December (33.1°F).
Average pressure in July
Forest Grove, OR
- Average pressure in July: 30.05"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in July
Forest Grove, 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 August (4mph).
Average humidity in July
Forest Grove, OR
- Average humidity in July: 70%
The months with the highest relative humidity are February and December (88%).
The month with the lowest relative humidity is August (69%).
Average rainfall in July
Forest Grove, OR
- Average rainfall in July: 0.47"
The wettest month (with the highest rainfall) is January (5.47").
The driest months (with the least rainfall) are July and August (0.47").
Average rainfall days in July
Forest Grove, OR
- Average rainfall days in July: 6.5 days
The month with the highest number of rainy days is March (21.4 days).
The month with the least rainy days is August (6.2 days).
Average snowfall in July
Forest Grove, 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
Forest Grove, OR
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (2.9 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
Forest Grove, 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 1min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 3h and 30min).
Average sunshine days in July
Forest Grove, OR
- Average sunshine days in July: 21.8 days
The month with the most sunshine days is August (22 days).
The month with the least sunshine days is March (7.6 days).
Average UV index in July
Forest Grove, OR
- Average UV index in July: 5
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in July
Forest Grove, OR
- Average cloud cover in July: 31
The month with the most cloud cover is February (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in July
Forest Grove, OR
- Average visibility in July: 6mi
The months with the highest visibility are July and August (6mi).
The months with the lowest visibility are January, February, March, November and December (4mi).
Forest Grove, Oregon, USA
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