Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
August, with its average high-temperature of 81.1°F (27.3°C) and an average low-temperature of 47.7°F (8.7°C), holds the record as the warmest month.Heat index
For most parts of August, the heat index is evaluated at 84.2°F (29°C). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.The heat index's values are generally associated with conditions in shade and light breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Humidity
August is the least humid month, with an average relative humidity of 69%.Rainfall
The months with the least rainfall in Tri-City, Oregon, are July and August Rain falls for 2.4 days and accumulates 0.16" (4mm) of rain.Snowfall
April through October are months without snowfall in Tri-City.Daylight
In August, the average length of the day in Tri-City is 13h and 53min.On the first day of August in Tri-City, sunrise is at 6:05 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 7:49 pm PDT.
Sunshine
With an average of 11.3h of sunshine, August has the most sunshine of the year in Tri-City.UV index
In Tri-City, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 5 in August translates into this advice:
Ensure safety - Sun damage prevention is strongly urged. To protect against the Sun's most potent rays, avoid direct exposure around midday. Enhance your sun protection with tightly woven, yet airy clothing.
Frequently asked questions
What part of the year is the hottest in Tri-City?
What are the temperatures in Tri-City in August?
What is the least humid month in Tri-City?
What is the average humidity in August in Tri-City?
What is the driest month in Tri-City?
How many days does it rain in August in Tri-City?
When it does not snow in Tri-City?
What is the average length of the day in August in Tri-City?
When are sunrise and sunset in August in Tri-City?
What month has the most sunshine in Tri-City?
How many hours of sunshine does Tri-City have in August?
What is the UV index intensity in August in Tri-City?
Average temperature in August
Tri-City, OR
- Average high temperature in August: 81.1°F
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (45.7°F).
- Average low temperature in August: 47.7°F
The month with the highest average low temperature is August (47.7°F).
The coldest month (with the lowest average low temperature) is December (32.2°F).
Average pressure in August
Tri-City, 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
Tri-City, OR
- Average wind speed in August: 3.3mph
The windiest month (with the highest average wind speed) is January (4.1mph).
The calmest month (with the lowest average wind speed) is September (3.2mph).
Average humidity in August
Tri-City, OR
- Average humidity in August: 69%
The months with the highest relative humidity are January, February and December (86%).
The month with the lowest relative humidity is August (69%).
Average rainfall in August
Tri-City, OR
- Average rainfall in August: 0.16"
The wettest months (with the highest rainfall) are January, February and December (1.1").
The driest months (with the least rainfall) are July and August (0.16").
Average rainfall days in August
Tri-City, OR
- Average rainfall days in August: 2.4 days
The month with the highest number of rainy days is March (12.6 days).
The month with the least rainy days is August (2.4 days).
Average snowfall in August
Tri-City, OR
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Tri-City, OR
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (1.5 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
Tri-City, OR
- Average daylight in August: 13h and 5min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in August: 11h and 2min
The month with the most sunshine is August (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in August
Tri-City, OR
- Average sunshine days in August: 26.5 days
The month with the most sunshine days is August (26.5 days).
The month with the least sunshine days is March (16.1 days).
Average UV index in August
Tri-City, OR
- Average UV index in August: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Tri-City, OR
- Average cloud cover in August: 25
The month with the most cloud cover is March (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in August
Tri-City, 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).
Tri-City, Oregon, USA
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