June weather forecastGrand Mound, WA
June
Weather in June
The first month of the summer, June, is an agreeable month in Grand Mound, Washington, with an average temperature ranging between min 45°F (7.2°C) and max 69.8°F (21°C).Temperature
Grand Mound commences June with an average high-temperature of a pleasant 69.8°F (21°C), maintaining a close resemblance to the previous month. Grand Mound records a pronounced decline from the day's peak to an average nighttime low-temperature of 45°F (7.2°C) throughout June.Humidity
The average relative humidity in June is 76%.Rainfall
In Grand Mound, in June, during 10.9 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. Throughout the year, there are 168 rainfall days, and 23.94" (608mm) of precipitation is accumulated.Snowfall
In Grand Mound, snow does not fall in April through October.Daylight
The month with the longest days is June, with an average of 15h and 48min of daylight.On the first day of June in Grand Mound, sunrise is at 5:20 am and sunset at 8:59 pm. On the last day of the month, sunrise is at 5:21 am and sunset at 9:10 pm PDT.
Sunshine
In Grand Mound, Washington, the average sunshine in June is 8.7h.UV index
June and July, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In June, the maximum UV index of 5 transforms into these recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Grand Mound, WA
- Average high temperature in June: 69.8°F
The warmest month (with the highest average high temperature) is August (77.4°F).
The month with the lowest average high temperature is December (42.6°F).
- Average low temperature in June: 45°F
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (33.1°F).
Average pressure in June
Grand Mound, WA
- Average pressure in June: 30.04"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.02"Hg).
Average wind speed in June
Grand Mound, WA
- Average wind speed in June: 4.2mph
The windiest months (with the highest average wind speed) are January, March and November (4.5mph).
The calmest month (with the lowest average wind speed) is September (3.6mph).
Average humidity in June
Grand Mound, WA
- Average humidity in June: 76%
The month with the highest relative humidity is November (90%).
The month with the lowest relative humidity is July (73%).
Average rainfall in June
Grand Mound, WA
- Average rainfall in June: 1.06"
The wettest month (with the highest rainfall) is January (3.86").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in June
Grand Mound, WA
- Average rainfall days in June: 10.9 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (5.6 days).
Average snowfall in June
Grand Mound, WA
- Average snowfall in June: 0"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in June
Grand Mound, WA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in June /
Average sunshine in June
Grand Mound, WA
- Average daylight in June: 15h and 48min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in June: 8h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in June
Grand Mound, WA
- Average sunshine days in June: 15.8 days
The month with the most sunshine days is August (20.9 days).
The months with the least sunshine days are February and March (9.3 days).
Average UV index in June
Grand Mound, WA
- Average UV index in June: 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 June
Grand Mound, WA
- Average cloud cover in June: 54
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in June
Grand Mound, WA
- Average visibility in June: 4mi
The month with the highest visibility is July (5mi).
The months with the lowest visibility are January, February, March, April, May, June, August, September, October, November and December (4mi).





