August weather forecastRosburg, WA
August
Weather in August
The last month of the summer, August, is an agreeable month in Rosburg, Washington, with an average temperature fluctuating between 68.2°F (20.1°C) and 52.5°F (11.4°C).Temperature
The average temperatures reach their apex in August, averaging 68.2°F (20.1°C) at the high end and 52.5°F (11.4°C) at the low end.Humidity
In Rosburg, the average relative humidity in August is 83%.Rainfall
The months with the least rainfall are July and August Rain falls for 7.8 days and accumulates 0.55" (14mm) of rain.Snowfall
April through November are months without snowfall in Rosburg.Daylight
In Rosburg, the average length of the day in August is 14h and 7min.On the first day of the month, sunrise is at 5:57 am and sunset at 8:44 pm. On the last day of August, sunrise is at 6:34 am and sunset at 7:54 pm PDT.
Sunshine
August has the most sunshine of the year, with an average of 9.8h of sunshine.UV index
In Rosburg, the average daily maximum UV index in August is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The UV index of 4 during August translates into the following guidance:
Guard yourself - An obligation to protect skin and eyes from harm exists. To protect against the Sun's most potent rays, avoid direct exposure around midday. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Rosburg, WA
- Average high temperature in August: 68.2°F
The warmest month (with the highest average high temperature) is August (68.2°F).
The month with the lowest average high temperature is December (44.6°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 December (37.6°F).
Average pressure in August
Rosburg, WA
- Average pressure in August: 30.03"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The months with the lowest atmospheric pressure are March and September (30.02"Hg).
Average wind speed in August
Rosburg, WA
- Average wind speed in August: 4.9mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in August
Rosburg, WA
- Average humidity in August: 83%
The months with the highest relative humidity are January, February, November and December (85%).
The months with the lowest relative humidity are May and July (81%).
Average rainfall in August
Rosburg, WA
- Average rainfall in August: 0.55"
The wettest month (with the highest rainfall) is December (6.42").
The driest months (with the least rainfall) are July and August (0.55").
Average rainfall days in August
Rosburg, WA
- Average rainfall days in August: 7.8 days
The month with the highest number of rainy days is December (21.9 days).
The month with the least rainy days is August (7.8 days).
Average snowfall in August
Rosburg, WA
- Average snowfall in August: 0"
The months with the highest snowfall are January and February (0.87").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in August
Rosburg, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (1.4 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
Rosburg, WA
- Average daylight in August: 14h and 6min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in August: 9h and 48min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in August
Rosburg, WA
- Average sunshine days in August: 19.7 days
The month with the most sunshine days is August (19.7 days).
The month with the least sunshine days is February (7.2 days).
Average UV index in August
Rosburg, 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
Rosburg, WA
- Average cloud cover in August: 38
The months with the most cloud cover are January and February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in August
Rosburg, WA
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are July, August and September (5mi).
