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
The average high-temperature mildly increases in July, edging from a pleasant 69.4°F (20.8°C) in June to a moderately hot 76.1°F (24.5°C). With the onset of night in July, Issaquah reveals a significant decrease in temperature, averaging at a fresh 50°F (10°C).Humidity
July is the least humid month in Issaquah, Washington, with an average relative humidity of 69%.Rainfall
The month with the least rainfall in Issaquah, Washington, is July, when the rain falls for 4.9 days and typically collects 0.24" (6mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In July, the average length of the day in Issaquah is 15h and 31min.On the first day of July, sunrise is at 5:15 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 July, the average sunshine in Issaquah is 10.3h.UV index
With an average maximum UV index of 5, July is the month with the highest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In July, a daily maximum UV index of 5 leads to the following instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Frequently asked questions
What are the temperatures in Issaquah in July?
What is the least humid month in Issaquah?
What is the average humidity in July in Issaquah?
What is the driest month in Issaquah?
How much does it rain in Issaquah in July?
When it does not snow in Issaquah?
What is the average length of the day in July in Issaquah?
When are sunrise and sunset in July in Issaquah?
How long on average sun shines in July in Issaquah?
When is the highest UV index in Issaquah?
What is the UV index intensity in July in Issaquah?
Average temperature in July
Issaquah, WA
- Average high temperature in July: 76.1°F
The warmest month (with the highest average high temperature) is August (77°F).
The month with the lowest average high temperature is December (42.3°F).
- Average low temperature in July: 50°F
The month with the highest average low temperature is August (51.4°F).
The coldest months (with the lowest average low temperature) are February and December (33.4°F).
Average pressure in July
Issaquah, 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
Issaquah, WA
- Average wind speed in July: 3.5mph
The windiest month (with the highest average wind speed) is January (5.1mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).
Average humidity in July
Issaquah, WA
- Average humidity in July: 69%
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is July (69%).
Average rainfall in July
Issaquah, WA
- Average rainfall in July: 0.24"
The wettest month (with the highest rainfall) is December (2.01").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in July
Issaquah, WA
- Average rainfall days in July: 4.9 days
The month with the highest number of rainy days is March (14.8 days).
The month with the least rainy days is August (4.3 days).
Average snowfall in July
Issaquah, WA
- Average snowfall in July: 0"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in July
Issaquah, WA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (2.5 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
Issaquah, 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 30min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).
Average sunshine days in July
Issaquah, WA
- Average sunshine days in July: 24.9 days
The month with the most sunshine days is August (25 days).
The month with the least sunshine days is February (12.9 days).
Average UV index in July
Issaquah, WA
- Average UV index in July: 5
The month with the highest UV index is 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
Issaquah, WA
- Average cloud cover in July: 29
The months with the most cloud cover are January and December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in July
Issaquah, WA
- 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 and December (4mi).
Issaquah, Washington, USA
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