August weather forecastGrand Ronde, OR
August
Weather in August
The last month of the summer, August, is another warm month in Grand Ronde, Oregon, with an average temperature ranging between max 78.4°F (25.8°C) and min 52.3°F (11.3°C).Temperature
August is the warmest month, exhibiting average temperatures of 78.4°F (25.8°C) at the peak and 52.3°F (11.3°C) at the base.Humidity
With an average relative humidity of 71%, August is the least humid month in Grand Ronde.Rainfall
In Grand Ronde, in August, during 4.8 rainfall days, 0.31" (8mm) of precipitation is typically accumulated. In Grand Ronde, during the entire year, the rain falls for 156 days and collects up to 15.94" (405mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In August, the average length of the day is 14h and 1min.On the first day of August, sunrise is at 6:00 am and sunset at 8:40 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:52 pm PDT.
Sunshine
The month with the most sunshine is August, with an average of 10.5h of sunshine.UV index
In Grand Ronde, the average daily maximum UV index in August is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In August, the average maximum UV index of 4 translates into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Grand Ronde, OR
- 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 (43.5°F).
- Average low temperature in August: 52.3°F
The month with the highest average low temperature is August (52.3°F).
The coldest month (with the lowest average low temperature) is December (33.3°F).
Average pressure in August
Grand Ronde, OR
- Average pressure in August: 30.02"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is September (30.01"Hg).
Average wind speed in August
Grand Ronde, OR
- Average wind speed in August: 3.8mph
The windiest month (with the highest average wind speed) is March (5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in August
Grand Ronde, OR
- Average humidity in August: 71%
The months with the highest relative humidity are February and December (89%).
The month with the lowest relative humidity is August (71%).
Average rainfall in August
Grand Ronde, OR
- Average rainfall in August: 0.31"
The wettest month (with the highest rainfall) is December (2.56").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in August
Grand Ronde, OR
- Average rainfall days in August: 4.8 days
The month with the highest number of rainy days is March (18.9 days).
The month with the least rainy days is August (4.8 days).
Average snowfall in August
Grand Ronde, OR
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Grand Ronde, OR
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (2.3 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
Grand Ronde, OR
- Average daylight in August: 14h and 0min
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: 10h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in August
Grand Ronde, OR
- Average sunshine days in August: 23.2 days
The month with the most sunshine days is July (23.7 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in August
Grand Ronde, OR
- Average UV index in August: 4
The months with the highest UV index are June and 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
Grand Ronde, OR
- Average cloud cover in August: 29
The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in August
Grand Ronde, OR
- Average visibility in August: 5mi
The months with the highest visibility are June, July, August and September (5mi).
The months with the lowest visibility are January, February, March, April, May, October, November and December (4mi).
