August weather forecastSpanaway, WA
August
Weather in August
August, the last month of the summer in Spanaway, is also a moderately hot month, with an average temperature fluctuating between 52.5°F (11.4°C) and 78.4°F (25.8°C).Temperature
Spanaway experiences its highest temperatures in August, with an average peak of 78.4°F (25.8°C) and a low of 52.5°F (11.4°C).Humidity
The average relative humidity in August is 70%.Rainfall
In August, the rain falls for 5.1 days. Throughout August, 0.51" (13mm) of precipitation is accumulated. Throughout the year, there are 176.3 rainfall days, and 30.28" (769mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Spanaway, the average length of the day in August is 14h and 10min.On the first day of the month, sunrise is at 5:49 am and sunset at 8:42 pm. On the last day of August, sunrise is at 6:28 am and sunset at 7:50 pm PDT.
Sunshine
With an average of 10.6h of sunshine, August has the most sunshine of the year.UV index
In Spanaway, the average daily maximum UV index in August is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The UV index of 4 during August leads to these advisories:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Spanaway, WA
- Average high temperature in August: 78.4°F
The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is December (43.7°F).
- Average low temperature in August: 52.5°F
The month with the highest average low temperature is August (52.5°F).
The coldest month (with the lowest average low temperature) is February (34.2°F).
Average pressure in August
Spanaway, WA
- Average pressure in August: 30.01"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 August
Spanaway, WA
- Average wind speed in August: 3.7mph
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 August
Spanaway, WA
- Average humidity in August: 70%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is July (69%).
Average rainfall in August
Spanaway, WA
- Average rainfall in August: 0.51"
The wettest month (with the highest rainfall) is December (4.76").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in August
Spanaway, WA
- Average rainfall days in August: 5.1 days
The month with the highest number of rainy days is March (19.9 days).
The month with the least rainy days is August (5.1 days).
Average snowfall in August
Spanaway, WA
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Spanaway, WA
- Average snowfall days in August: 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 August /
Average sunshine in August
Spanaway, WA
- Average daylight in August: 14h and 12min
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 August: 10h and 36min
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 August
Spanaway, WA
- Average sunshine days in August: 23.3 days
The month with the most sunshine days is August (23.3 days).
The months with the least sunshine days are February and March (9 days).
Average UV index in August
Spanaway, WA
- Average UV index in August: 4
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 August
Spanaway, WA
- Average cloud cover in August: 27
The months with the most cloud cover are January and December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in August
Spanaway, WA
- Average visibility in August: 6mi
The months with the highest visibility are July and August (6mi).
The months with the lowest visibility are January, February, March, April, May, June, September, October, November and December (5mi).
