June weather forecastVashon, WA
June
Weather in June
The first month of the summer, June, is an agreeable month in Vashon, Washington, with an average temperature varying between 70°F (21.1°C) and 48°F (8.9°C).Temperature
Vashon's shift into June sets the average high-temperature at an agreeable 70°F (21.1°C), a figure that deviates only slightly from May's 65.3°F (18.5°C). Vashon anticipates a considerable daily temperature fluctuation in June, with low temperatures averaging a frosty 48°F (8.9°C).Humidity
The average relative humidity in June is 73%.Rainfall
In June, the rain falls for 10.5 days. Throughout June, 0.79" (20mm) of precipitation is accumulated. In Vashon, during the entire year, the rain falls for 138.2 days and collects up to 14.09" (358mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
June has the longest days of the year, with an average of 15h and 54min of daylight.On the first day of the month, sunrise is at 5:16 am and sunset at 8:59 pm. On the last day of June, sunrise is at 5:16 am and sunset at 9:10 pm PDT.
Sunshine
In June, the average sunshine is 9.3h.UV index
June through August, 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 medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index, 5 during June, leads to the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Vashon, WA
- Average high temperature in June: 70°F
The warmest month (with the highest average high temperature) is August (77.7°F).
The month with the lowest average high temperature is December (43.5°F).
- Average low temperature in June: 48°F
The month with the highest average low temperature is August (53.6°F).
The coldest month (with the lowest average low temperature) is December (34.3°F).
Average pressure in June
Vashon, WA
- Average pressure in June: 30.02"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in June
Vashon, WA
- Average wind speed in June: 4mph
The windiest month (with the highest average wind speed) is March (5.3mph).
The calmest months (with the lowest average wind speed) are July and August (3.6mph).
Average humidity in June
Vashon, WA
- Average humidity in June: 73%
The months with the highest relative humidity are January and December (85%).
The month with the lowest relative humidity is July (68%).
Average rainfall in June
Vashon, WA
- Average rainfall in June: 0.79"
The wettest month (with the highest rainfall) is December (2.2").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in June
Vashon, WA
- Average rainfall days in June: 10.5 days
The month with the highest number of rainy days is April (14.9 days).
The month with the least rainy days is August (5.7 days).
Average snowfall in June
Vashon, WA
- Average snowfall in June: 0"
The month with the highest snowfall is February (2.52").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in June
Vashon, WA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is February (3.4 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
Vashon, WA
- Average daylight in June: 15h and 54min
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 June: 9h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in June
Vashon, WA
- Average sunshine days in June: 17.1 days
The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is February (13 days).
Average UV index in June
Vashon, WA
- Average UV index in June: 5
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in June
Vashon, WA
- Average cloud cover in June: 44
The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in June
Vashon, WA
- Average visibility in June: 6mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, October, November and December (5mi).





