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
Sammamish's weather shows a minor temperature rise with the arrival of July, moving from a pleasant 69.3°F (20.7°C) in June to a moderately hot 76.1°F (24.5°C). Sammamish experiences a significant contrast between daily highs and an average nighttime temperature of 50.7°F (10.4°C) during July.Humidity
With an average relative humidity of 70%, July is the least humid month in Sammamish.Rainfall
The months with the least rainfall are July and August Rain falls for 6.7 days and accumulates 0.35" (9mm) of rain.Snowfall
In Sammamish, snow does not fall in May through October.Daylight
In July, the average length of the day in Sammamish, Washington, is 15h and 31min.On the first day of July, sunrise is at 5:14 am and sunset at 9:09 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:43 pm PDT.
Sunshine
In Sammamish, Washington, the average sunshine in July is 10.5h.UV index
The months with the highest UV index are June and July, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In July, the average maximum UV index of 5 translates into the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are July temperatures?
What is the least humid month?
What is the average humidity in July?
What is the driest month?
How much does it rain in Sammamish in July?
When it does not snow?
What is the average length of the day in July?
When is the sunrise / sunset in July?
How long on average sun shines in July in Sammamish?
When is the highest UV index?
What is the UV index intensity in July?
Average temperature in July
Sammamish, WA
- Average high temperature in July: 76.1°F
The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (42.3°F).
- Average low temperature in July: 50.7°F
The month with the highest average low temperature is August (52.2°F).
The coldest month (with the lowest average low temperature) is December (33.6°F).
Average pressure in July
Sammamish, WA
- Average pressure in July: 30.03"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in July
Sammamish, WA
- Average wind speed in July: 3.5mph
The windiest month (with the highest average wind speed) is January (5mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).
Average humidity in July
Sammamish, WA
- Average humidity in July: 70%
The months with the highest relative humidity are January, February and December (85%).
The month with the lowest relative humidity is July (70%).
Average rainfall in July
Sammamish, WA
- Average rainfall in July: 0.35"
The wettest month (with the highest rainfall) is December (1.85").
The driest months (with the least rainfall) are July and August (0.35").
Average rainfall days in July
Sammamish, WA
- Average rainfall days in July: 6.7 days
The month with the highest number of rainy days is March (14.8 days).
The month with the least rainy days is August (5.2 days).
Average snowfall in July
Sammamish, WA
- Average snowfall in July: 0"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in July
Sammamish, WA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (3.2 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in July /
Average sunshine in July
Sammamish, 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 3min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 4h and 12min).
Average sunshine days in July
Sammamish, WA
- Average sunshine days in July: 22.3 days
The month with the most sunshine days is August (24 days).
The month with the least sunshine days is November (13.5 days).
Average UV index in July
Sammamish, WA
- Average UV index in July: 5
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in July
Sammamish, WA
- Average cloud cover in July: 28
The month with the most cloud cover is December (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in July
Sammamish, WA
- Average visibility in July: 6mi
The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, October, November and December (5mi).
Sammamish, Washington, USA
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