Contents
- Weather in June
- Frequently asked questions
- Average temperature in June
- Average pressure in June
- Average wind speed in June
- Average humidity in June
- Average rainfall in June
- Average rainfall days in June
- Average snowfall in June
- Average snowfall days in June
- Average daylight in June
- Average sunshine in June
- Average sunshine days in June
- Average UV index in June
- Average cloud cover in June
- Average visibility in June
Weather in June
Temperature
As June arrives, Grand Coulee's weather shows a minor increase in high-temperatures, edging from May's enjoyable 67.6°F (19.8°C) to a moderately hot 74.3°F (23.5°C). A sharp divergence from daytime highs is noted during the month of June, with the average nighttime temperature settling at a fresh 51.8°F (11°C).Humidity
In June, the average relative humidity is 49%.Rainfall
In Grand Coulee, in June, it is raining for 8.4 days, with typically 0.75" (19mm) of accumulated precipitation. Throughout the year, there are 102.1 rainfall days, and 9.65" (245mm) of precipitation is accumulated.Snowfall
May through August are months without snowfall.Daylight
With an average of 16h and 0min of daylight, June has the longest days of the year.On the first day of June, sunrise is at 5:00 am and sunset at 8:47 pm. On the last day of the month, sunrise is at 5:00 am and sunset at 8:59 pm PDT.
Sunshine
In June, the average sunshine is 11.3h.UV index
In Grand Coulee, Washington, the average daily maximum UV index in June is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A typical high UV index of 6 in June suggests the following recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are June temperatures in Grand Coulee?
What is the average humidity in June?
How many days does it rain in June?
When it does not snow?
When are the longest days?
How many hours of daylight does Grand Coulee have in June?
When are sunrise and sunset in June?
How many hours of sunshine does Grand Coulee have in June?
What is the UV index intensity in June?
Average temperature in June
Grand Coulee, WA
- Average high temperature in June: 74.3°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 June: 51.8°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 June
Grand Coulee, WA
- Average pressure in June: 29.92"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 June
Grand Coulee, WA
- Average wind speed in June: 6.3mph
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 June
Grand Coulee, WA
- Average humidity in June: 49%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (36%).
Average rainfall in June
Grand Coulee, WA
- Average rainfall in June: 0.75"
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 June
Grand Coulee, WA
- Average rainfall days in June: 8.4 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 June
Grand Coulee, WA
- Average snowfall in June: 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 June
Grand Coulee, WA
- Average snowfall days in June: 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 June /
Average sunshine in June
Grand Coulee, WA
- Average daylight in June: 16h and 0min
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 June: 11h and 2min
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 June
Grand Coulee, WA
- Average sunshine days in June: 19.9 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 June
Grand Coulee, WA
- Average UV index in June: 6
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 June
Grand Coulee, WA
- Average cloud cover in June: 24
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 June
Grand Coulee, WA
- Average visibility in June: 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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