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
Grand Coulee's temperatures peak on average in July, reaching 84.9°F (29.4°C) at their highest and 59.7°F (15.4°C) at their lowest.Humidity
In July, the average relative humidity is 37%.Rainfall
The months with the least rainfall in Grand Coulee are July and August Rain falls for 4.2 days and accumulates 0.2" (5mm) of rain.Snowfall
May through August are months without snowfall.Daylight
In July, the average length of the day in Grand Coulee is 15h and 34min.On the first day of the month, sunrise is at 5:01 am and sunset at 8:58 pm. On the last day of July, sunrise is at 5:32 am and sunset at 8:32 pm PDT.
Sunshine
In July, the average sunshine in Grand Coulee, Washington, is 11.9h.UV index
With an average maximum UV index of 7, July is the month with the highest UV index in Grand Coulee. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 7 in July converts into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Frequently asked questions
What time of the year is the hottest in Grand Coulee?
How hot is July in Grand Coulee?
What is the average humidity in July in Grand Coulee?
What is the driest month in Grand Coulee?
How many days does it rain in July in Grand Coulee?
When it does not snow in Grand Coulee?
How many hours of daylight does Grand Coulee have in July?
When is the sunrise / sunset in July in Grand Coulee?
How long on average sun shines in July in Grand Coulee?
When is the highest UV index in Grand Coulee?
What is the UV index intensity in July in Grand Coulee?
Average temperature in July
Grand Coulee, 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
Grand Coulee, 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
Grand Coulee, 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
Grand Coulee, 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
Grand Coulee, 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
Grand Coulee, 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
Grand Coulee, 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
Grand Coulee, 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
Grand Coulee, WA
- Average daylight in July: 15h and 4min
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 5min
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
Grand Coulee, 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
Grand Coulee, 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
Grand Coulee, 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
Grand Coulee, 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).
Grand Coulee, Washington, USA
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