August weather forecastUmpqua, OR
August
Weather in August
August, the last month of the summer in Umpqua, is another warm month, with temperature in the range of an average high of 80.2°F (26.8°C) and an average low of 47.8°F (8.8°C).Temperature
August, with its average high-temperature of 80.2°F (26.8°C) and an average low-temperature of 47.8°F (8.8°C), holds the record as the warmest month.Humidity
The months with the lowest humidity are July and August, with an average relative humidity of 71%.Rainfall
In Umpqua, in August, during 3.3 rainfall days, 0.31" (8mm) of precipitation is typically accumulated. Throughout the year, there are 153.9 rainfall days, and 27.72" (704mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in August is 13h and 54min.On the first day of the month, sunrise is at 6:04 am and sunset at 8:35 pm. On the last day of August, sunrise is at 6:37 am and sunset at 7:50 pm PDT.
Sunshine
August has the most sunshine of the year, with an average of 11.1h of sunshine.UV index
June through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A typical high UV index of 5 in August suggests the following recommendations:
Exercise prevention - Warding off sunburn is urged. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Umpqua, OR
- Average high temperature in August: 80.2°F
The warmest month (with the highest average high temperature) is August (80.2°F).
The month with the lowest average high temperature is December (46°F).
- Average low temperature in August: 47.8°F
The month with the highest average low temperature is August (47.8°F).
The coldest month (with the lowest average low temperature) is December (33.1°F).
Average pressure in August
Umpqua, OR
- 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
Umpqua, OR
- Average wind speed in August: 3.3mph
The windiest months (with the highest average wind speed) are January and March (4mph).
The calmest month (with the lowest average wind speed) is September (3.2mph).
Average humidity in August
Umpqua, OR
- Average humidity in August: 71%
The months with the highest relative humidity are January, February and December (87%).
The months with the lowest relative humidity are July and August (71%).
Average rainfall in August
Umpqua, OR
- Average rainfall in August: 0.31"
The wettest month (with the highest rainfall) is December (4.17").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in August
Umpqua, OR
- Average rainfall days in August: 3.3 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (3.3 days).
Average snowfall in August
Umpqua, OR
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.89").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Umpqua, OR
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (2 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
Umpqua, OR
- Average daylight in August: 13h and 54min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in August: 11h and 6min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in August
Umpqua, OR
- Average sunshine days in August: 24.7 days
The month with the most sunshine days is July (25.4 days).
The month with the least sunshine days is February (9.7 days).
Average UV index in August
Umpqua, OR
- Average UV index in August: 5
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Umpqua, OR
- Average cloud cover in August: 27
The month with the most cloud cover is March (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in August
Umpqua, OR
- Average visibility in August: 5mi
The months with the highest visibility are July, August and September (5mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (4mi).
