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
In Preston, the average high-temperature in July slightly increases from an enjoyable 66°F (18.9°C) in June to a warm 73.9°F (23.3°C). July nights are characterized by a significant departure from the daytime highs, dropping to an average temperature of 46.9°F (8.3°C).Humidity
July is the least humid month in Preston, with an average relative humidity of 71%.Rainfall
The months with the least rainfall are July and August Rain falls for 7.9 days and accumulates 0.59" (15mm) of rain.Snowfall
In Preston, snow does not fall in May through October.Daylight
In July, the average length of the day is 15h and 31min.On the first day of the month, sunrise is at 5:14 am and sunset at 9:08 pm. On the last day of July, in Preston, sunrise is at 5:45 am and sunset at 8:42 pm PDT.
Sunshine
In July, the average sunshine is 10.4h.UV index
July is the month with the highest UV index in Preston, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: In July, a daily UV index of 5 turns into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Stay sun-safe with clothing that is both closely woven and worn loosely.
Frequently asked questions
What are the temperatures in Preston in July?
What is the least humid month in Preston?
What is the average humidity in July in Preston?
What is the driest month in Preston?
How many days does it rain in July in Preston?
When it does not snow in Preston?
How many hours of daylight does Preston have in July?
When are sunrise and sunset in July in Preston?
How long on average sun shines in July in Preston?
What is the month with the highest UV index in Preston?
How high is the UV index in July in Preston?
Average temperature in July
Preston, WA
- Average high temperature in July: 73.9°F
The warmest month (with the highest average high temperature) is August (74.8°F).
The month with the lowest average high temperature is December (39.7°F).
- Average low temperature in July: 46.9°F
The month with the highest average low temperature is August (48.7°F).
The coldest month (with the lowest average low temperature) is December (29.8°F).
Average pressure in July
Preston, WA
- Average pressure in July: 30.02"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).
Average wind speed in July
Preston, WA
- Average wind speed in July: 3.4mph
The windiest month (with the highest average wind speed) is January (5.1mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).
Average humidity in July
Preston, WA
- Average humidity in July: 71%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is July (71%).
Average rainfall in July
Preston, WA
- Average rainfall in July: 0.59"
The wettest month (with the highest rainfall) is January (6.1").
The driest months (with the least rainfall) are July and August (0.59").
Average rainfall days in July
Preston, WA
- Average rainfall days in July: 7.9 days
The month with the highest number of rainy days is March (20.5 days).
The month with the least rainy days is August (6.4 days).
Average snowfall in July
Preston, WA
- Average snowfall in July: 0"
The month with the highest snowfall is February (3.94").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in July
Preston, WA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (5.4 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
Preston, WA
- Average daylight in July: 15h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in July: 10h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 3h and 54min).
Average sunshine days in July
Preston, WA
- Average sunshine days in July: 20.3 days
The month with the most sunshine days is August (21.9 days).
The month with the least sunshine days is February (7.8 days).
Average UV index in July
Preston, WA
- Average UV index in July: 5
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in July
Preston, WA
- Average cloud cover in July: 30
The months with the most cloud cover are January, February, March and December (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in July
Preston, WA
- Average visibility in July: 5mi
The months with the highest visibility are May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).
Preston, Washington, USA
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