August weather forecastWashougal, WA

August
Weather in August
The last month of the summer, August, is another warm month in Washougal, Washington, with an average temperature fluctuating between 52.7°F (11.5°C) and 79.7°F (26.5°C).Temperature
Washougal's temperature records reveal August as the warmest month, marked by average highs of 79.7°F (26.5°C) and lows of 52.7°F (11.5°C).Humidity
August is the least humid month, with an average relative humidity of 65%.Rainfall
In Washougal, in August, during 4.1 rainfall days, 0.43" (11mm) of precipitation is typically accumulated. Throughout the year, there are 171 rainfall days, and 37.2" (945mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In August, the average length of the day is 14h and 4min.On the first day of the month, sunrise is at 5:54 am and sunset at 8:37 pm. On the last day of August, in Washougal, sunrise is at 6:30 am and sunset at 7:48 pm PDT.
Sunshine
The month with the most sunshine is August, with an average of 11h of sunshine.UV index
In August, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 4 during August leads to these instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Washougal, WA
- Average high temperature in August: 79.7°F
The warmest month (with the highest average high temperature) is August (79.7°F).
The month with the lowest average high temperature is December (43.3°F).
- Average low temperature in August: 52.7°F
The month with the highest average low temperature is August (52.7°F).
The coldest month (with the lowest average low temperature) is December (33.3°F).
Average pressure in August
Washougal, WA
- Average pressure in August: 30"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in August
Washougal, WA
- Average wind speed in August: 3.5mph
The windiest month (with the highest average wind speed) is January (6.8mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in August
Washougal, WA
- Average humidity in August: 65%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (65%).
Average rainfall in August
Washougal, WA
- Average rainfall in August: 0.43"
The wettest month (with the highest rainfall) is December (5.63").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in August
Washougal, WA
- Average rainfall days in August: 4.1 days
The month with the highest number of rainy days is March (19.6 days).
The month with the least rainy days is August (4.1 days).
Average snowfall in August
Washougal, WA
- Average snowfall in August: 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 August
Washougal, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Washougal, WA
- Average daylight in August: 14h and 6min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in August: 11h and 0min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in August
Washougal, WA
- Average sunshine days in August: 25.3 days
The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is February (8.6 days).
Average UV index in August
Washougal, 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
Washougal, WA
- Average cloud cover in August: 24
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in August
Washougal, WA
- Average visibility in August: 6mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).





