Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
Duvall's warmest weather arrives in August, when temperatures average a high of 75.7°F (24.3°C) and a low of 50.2°F (10.1°C).Humidity
In August, the average relative humidity is 72%.Rainfall
July and August are months with the least rain when the rain falls for 4.8 days and typically aggregates up to 0.31" (8mm) of rain.Snowfall
In Duvall, snow does not fall in May through October.Daylight
In Duvall, Washington, the average length of the day in August is 14h and 13min.On the first day of the month, sunrise is at 5:46 am and sunset at 8:42 pm. On the last day of August, sunrise is at 6:26 am and sunset at 7:49 pm PDT.
Sunshine
The month with the most sunshine is August, with an average of 10.6h of sunshine.UV index
In August, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 4 in August interprets into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the hottest?
What is the temperature in August?
What is the average humidity in August?
What is the driest month?
How many days does it rain in August?
When it does not snow in Duvall?
What is the average length of the day in August?
When is the sunrise / sunset in August?
What month has the most sunshine?
How long on average sun shines in August?
How high is the UV index in August?
Average temperature in August
Duvall, WA
- Average high temperature in August: 75.7°F
The warmest month (with the highest average high temperature) is August (75.7°F).
The month with the lowest average high temperature is December (41.4°F).
- Average low temperature in August: 50.2°F
The month with the highest average low temperature is August (50.2°F).
The coldest month (with the lowest average low temperature) is December (32.2°F).
Average pressure in August
Duvall, WA
- Average pressure in August: 30"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in August
Duvall, WA
- Average wind speed in August: 3.3mph
The windiest month (with the highest average wind speed) is January (5mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).
Average humidity in August
Duvall, WA
- Average humidity in August: 72%
The months with the highest relative humidity are January, February and December (86%).
The month with the lowest relative humidity is July (71%).
Average rainfall in August
Duvall, WA
- Average rainfall in August: 0.31"
The wettest month (with the highest rainfall) is December (2.6").
The driest months (with the least rainfall) are July and August (0.31").
Average rainfall days in August
Duvall, WA
- Average rainfall days in August: 4.8 days
The month with the highest number of rainy days is March (15.8 days).
The month with the least rainy days is August (4.8 days).
Average snowfall in August
Duvall, WA
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Duvall, WA
- Average snowfall days in August: 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 August /
Average sunshine in August
Duvall, WA
- Average daylight in August: 14h and 1min
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 August: 10h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 54min).
Average sunshine days in August
Duvall, WA
- Average sunshine days in August: 24.1 days
The month with the most sunshine days is August (24.1 days).
The month with the least sunshine days is February (12.6 days).
Average UV index in August
Duvall, WA
- Average UV index in August: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Duvall, WA
- Average cloud cover in August: 27
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 August
Duvall, 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, November and December (4mi).
Duvall, Washington, USA
Weather forecast for your location
2. Allow the app to use your location