August weather forecastBonneville, OR
August
Weather in August
August, the last month of the summer in Bonneville, is also a moderately hot month, with an average temperature ranging between max 76.5°F (24.7°C) and min 48.7°F (9.3°C).Temperature
August is the month that records the highest temperatures, with averages ranging from a high of 76.5°F (24.7°C) to a low of 48.7°F (9.3°C).Humidity
The months with the lowest humidity in Bonneville are July and August, with an average relative humidity of 67%.Rainfall
In Bonneville, in August, during 4.8 rainfall days, 0.35" (9mm) of precipitation is typically accumulated. Throughout the year, there are 158.4 rainfall days, and 30.31" (770mm) of precipitation is accumulated.Snowfall
In Bonneville, snow does not fall in April through October.Daylight
The average length of the day in August is 14h and 4min.On the first day of the month, sunrise is at 5:52 am and sunset at 8:35 pm. On the last day of August, sunrise is at 6:28 am and sunset at 7:46 pm PDT.
Sunshine
July and August, with an average of 10.9h of sunshine, are months with the most sunshine.UV index
In Bonneville, the average daily maximum UV index in August is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: An average UV index of 4 in August transforms into this advice:
Put precautions into practice - Guidance to elude sunburn is provided. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Bonneville, OR
- Average high temperature in August: 76.5°F
The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (37.9°F).
- Average low temperature in August: 48.7°F
The month with the highest average low temperature is August (48.7°F).
The coldest month (with the lowest average low temperature) is December (28.2°F).
Average pressure in August
Bonneville, OR
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is August (29.98"Hg).
Average wind speed in August
Bonneville, OR
- Average wind speed in August: 4.2mph
The windiest month (with the highest average wind speed) is January (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in August
Bonneville, OR
- Average humidity in August: 67%
The month with the highest relative humidity is February (89%).
The months with the lowest relative humidity are July and August (67%).
Average rainfall in August
Bonneville, OR
- Average rainfall in August: 0.35"
The wettest month (with the highest rainfall) is January (5.35").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in August
Bonneville, 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 July (4.4 days).
Average snowfall in August
Bonneville, OR
- Average snowfall in August: 0"
The month with the highest snowfall is January (3.62").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Bonneville, OR
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (3.8 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
Bonneville, OR
- 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: 10h and 54min
The months with the most sunshine are July and August (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).
Average sunshine days in August
Bonneville, OR
- Average sunshine days in August: 23.9 days
The month with the most sunshine days is July (24.5 days).
The month with the least sunshine days is February (9.4 days).
Average UV index in August
Bonneville, OR
- Average UV index in August: 4
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in August
Bonneville, OR
- Average cloud cover in August: 26
The month with the most cloud cover is February (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 26).
Average visibility in August
Bonneville, OR
- Average visibility in August: 5mi
The months with the highest visibility are May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).
