August weather forecastO'Brien, OR
August
Weather in August
August, the last month of the summer in O'Brien, is also an agreeable month, with an average temperature varying between 71.4°F (21.9°C) and 53.2°F (11.8°C).Temperature
O'Brien ushers in August with an average high-temperature of a still pleasant 71.4°F (21.9°C), showing a close resemblance to the previous month. O'Brien experiences a nighttime temperature average of 53.2°F (11.8°C) during August.Humidity
The average relative humidity in August is 74%.Rainfall
In August, in O'Brien, the rain falls for 2.8 days. Throughout August, 0.24" (6mm) of precipitation is accumulated. Throughout the year, there are 131.8 rainfall days, and 46.14" (1172mm) of precipitation is accumulated.Snowfall
In O'Brien, snow does not fall in January, March through December.Daylight
The average length of the day in August is 13h and 49min.On the first day of August, sunrise is at 6:09 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 7:49 pm PDT.
Sunshine
The average sunshine in August is 11.7h.UV index
June through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The average daily UV index of 5 in August transforms into the following instructions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
O'Brien, OR
- Average high temperature in August: 71.4°F
The warmest month (with the highest average high temperature) is July (71.8°F).
The month with the lowest average high temperature is December (50.4°F).
- Average low temperature in August: 53.2°F
The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is February (40.5°F).
Average pressure in August
O'Brien, OR
- Average pressure in August: 29.99"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).
Average wind speed in August
O'Brien, OR
- Average wind speed in August: 5.6mph
The windiest month (with the highest average wind speed) is March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in August
O'Brien, OR
- Average humidity in August: 74%
The month with the highest relative humidity is March (83%).
The month with the lowest relative humidity is September (72%).
Average rainfall in August
O'Brien, OR
- Average rainfall in August: 0.24"
The wettest month (with the highest rainfall) is January (8.11").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in August
O'Brien, OR
- Average rainfall days in August: 2.8 days
The month with the highest number of rainy days is March (19.2 days).
The month with the least rainy days is July (2.3 days).
Average snowfall in August
O'Brien, OR
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.59").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in August
O'Brien, OR
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in August /
Average sunshine in August
O'Brien, OR
- Average daylight in August: 13h and 48min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in August: 11h and 42min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in August
O'Brien, OR
- Average sunshine days in August: 26.3 days
The month with the most sunshine days is July (27.7 days).
The month with the least sunshine days is March (10.5 days).
Average UV index in August
O'Brien, 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 February and December (UV index 2).
Average cloud cover in August
O'Brien, OR
- Average cloud cover in August: 11
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 10).
Average visibility in August
O'Brien, OR
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
