June weather forecastSteilacoom, WA
June
Weather in June
June, the first month of the summer in Steilacoom, is an agreeable month, with temperature in the range of an average high of 70.3°F (21.3°C) and an average low of 47.1°F (8.4°C).Temperature
Steilacoom, Washington, experiences a transition to an agreeable 70.3°F (21.3°C) in average high-temperatures with the arrival of June, not greatly differing from May's 65.8°F (18.8°C). Nighttime in June brings a stark departure from the daily high, resting at an average low-temperature of 47.1°F (8.4°C).Humidity
The average relative humidity in June is 73%.Rainfall
In Steilacoom, Washington, in June, it is raining for 11.4 days, with typically 1.14" (29mm) of accumulated precipitation. In Steilacoom, during the entire year, the rain falls for 172.9 days and collects up to 30.08" (764mm) of precipitation.Snowfall
In Steilacoom, snow does not fall in April through October.Daylight
June has the longest days of the year, with an average of 15h and 54min of daylight.On the first day of June, sunrise is at 5:17 am and sunset at 8:58 pm. On the last day of the month, sunrise is at 5:18 am and sunset at 9:09 pm PDT.
Sunshine
In June, the average sunshine is 9.4h.UV index
In June, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 5 during June leads to these instructions:
Put precautions into practice - Guidance to elude sunburn is provided. When the Sun is at its strongest around midday, find shade and limit exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Steilacoom, WA
- Average high temperature in June: 70.3°F
The warmest month (with the highest average high temperature) is August (78.1°F).
The month with the lowest average high temperature is December (43.7°F).
- Average low temperature in June: 47.1°F
The month with the highest average low temperature is August (52.7°F).
The coldest months (with the lowest average low temperature) are February and December (34.3°F).
Average pressure in June
Steilacoom, WA
- Average pressure in June: 30.03"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 (30.01"Hg).
Average wind speed in June
Steilacoom, WA
- Average wind speed in June: 4.2mph
The windiest month (with the highest average wind speed) is March (5.2mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in June
Steilacoom, WA
- Average humidity in June: 73%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is July (68%).
Average rainfall in June
Steilacoom, WA
- Average rainfall in June: 1.14"
The wettest month (with the highest rainfall) is December (4.69").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in June
Steilacoom, WA
- Average rainfall days in June: 11.4 days
The month with the highest number of rainy days is March (20.1 days).
The month with the least rainy days is August (5 days).
Average snowfall in June
Steilacoom, WA
- Average snowfall in June: 0"
The month with the highest snowfall is February (2.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in June
Steilacoom, WA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is February (3.2 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
Steilacoom, 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 36min).
- Average sunshine in June: 9h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).
Average sunshine days in June
Steilacoom, WA
- Average sunshine days in June: 16 days
The month with the most sunshine days is August (23.4 days).
The month with the least sunshine days is February (9 days).
Average UV index in June
Steilacoom, WA
- Average UV index in June: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in June
Steilacoom, WA
- Average cloud cover in June: 44
The month with the most cloud cover is December (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in June
Steilacoom, WA
- Average visibility in June: 6mi
The months with the highest visibility are June, July and August (6mi).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (5mi).
