July weather forecastCoulee Dam, WA
July
Weather in July
July, like June, in Coulee Dam, Washington, is another warm summer month, with an average temperature ranging between min 59.7°F (15.4°C) and max 84.9°F (29.4°C).Temperature
With an average high-temperature of 84.9°F (29.4°C) and an average low-temperature of 59.7°F (15.4°C), July is the warmest month.Humidity
In July, the average relative humidity is 37%.Rainfall
The months with the least rainfall are July and August Rain falls for 4.2 days and accumulates 0.2" (5mm) of rain.Snowfall
In Coulee Dam, Washington, snow does not fall in May through August.Daylight
In July, the average length of the day is 15h and 34min.On the first day of July in Coulee Dam, sunrise is at 5:01 am and sunset at 8:58 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:32 pm PDT.
Sunshine
In Coulee Dam, the average sunshine in July is 11.9h.UV index
July is the month with the highest UV index, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 7 during July translates into the following guidance:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Coulee Dam, WA
- Average high temperature in July: 84.9°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is December (31.6°F).
- Average low temperature in July: 59.7°F
The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is December (21.4°F).
Average pressure in July
Coulee Dam, WA
- Average pressure in July: 29.93"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in July
Coulee Dam, WA
- Average wind speed in July: 6mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is January (4.9mph).
Average humidity in July
Coulee Dam, WA
- Average humidity in July: 37%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (36%).
Average rainfall in July
Coulee Dam, WA
- Average rainfall in July: 0.2"
The wettest months (with the highest rainfall) are May and December (1.18").
The driest months (with the least rainfall) are July and August (0.2").
Average rainfall days in July
Coulee Dam, WA
- Average rainfall days in July: 4.2 days
The month with the highest number of rainy days is March (12.1 days).
The month with the least rainy days is August (3.2 days).
Average snowfall in July
Coulee Dam, WA
- Average snowfall in July: 0"
The month with the highest snowfall is January (4.41").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in July
Coulee Dam, WA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is December (10.5 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in July /
Average sunshine in July
Coulee Dam, WA
- Average daylight in July: 15h and 36min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in July: 11h and 54min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in July
Coulee Dam, WA
- Average sunshine days in July: 25.5 days
The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is March (14.7 days).
Average UV index in July
Coulee Dam, WA
- Average UV index in July: 7
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in July
Coulee Dam, WA
- Average cloud cover in July: 12
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in July
Coulee Dam, WA
- Average visibility in July: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (4mi).
