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
The month of August sees the highest average temperatures, reaching 84°F (28.9°C) at the peak and 54.3°F (12.4°C) at the low.Heat index
During August, the heat index is computed to be 84.2°F (29°C). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.Note that heat index values are valued for light wind and location in the shade. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', takes into account both air temperature and humidity to illustrate what people actually feel. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Humidity
The least humid month is August, with an average relative humidity of 43%.Rainfall
August is the month with the least rainfall in Chattaroy. Rain falls for 5.1 days and accumulates 0.31" (8mm) of precipitation.Snowfall
In Chattaroy, snow does not fall in June through August.Daylight
The average length of the day in August is 14h and 14min.On the first day of the month, sunrise is at 5:27 am and sunset at 8:24 pm. On the last day of August, sunrise is at 6:07 am and sunset at 7:31 pm PDT.
Sunshine
The month with the most sunshine is August, with an average of 12h of sunshine.UV index
The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A maximum UV index of 5 in August translates into the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. When the Sun is at its strongest around midday, find shade and limit exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the hottest time of year?
Is it hot during August?
What is the least humid month?
What is the average humidity in August?
What is the driest month?
How many days does it rain in August?
When it does not snow?
Does it snow in August?
How many hours of daylight does Chattaroy have in August?
What time are sunrise and sunset in August?
What month has the most sunshine?
How many hours of sunshine does Chattaroy have in August?
How high is the UV index in August?
Average temperature in August
Chattaroy, WA
- Average high temperature in August: 84°F
The warmest month (with the highest average high temperature) is August (84°F).
The month with the lowest average high temperature is December (31.3°F).
- Average low temperature in August: 54.3°F
The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is December (20.3°F).
Average pressure in August
Chattaroy, WA
- Average pressure in August: 29.91"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed in August
Chattaroy, WA
- Average wind speed in August: 4.7mph
The windiest month (with the highest average wind speed) is April (5.6mph).
The calmest month (with the lowest average wind speed) is December (4mph).
Average humidity in August
Chattaroy, WA
- Average humidity in August: 43%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (43%).
Average rainfall in August
Chattaroy, WA
- Average rainfall in August: 0.31"
The wettest month (with the highest rainfall) is January (2.4").
The driest month (with the least rainfall) is August (0.31").
Average rainfall days in August
Chattaroy, WA
- Average rainfall days in August: 5.1 days
The month with the highest number of rainy days is March (16.2 days).
The month with the least rainy days is August (5.1 days).
Average snowfall in August
Chattaroy, WA
- Average snowfall in August: 0"
The month with the highest snowfall is January (13.23").
The months with the least snowfall are June, July and August (0").
Average snowfall days in August
Chattaroy, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (16.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Chattaroy, WA
- Average daylight in August: 14h and 1min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in August: 12h and 0min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in August
Chattaroy, WA
- Average sunshine days in August: 23.8 days
The month with the most sunshine days is July (24.2 days).
The month with the least sunshine days is March (9.7 days).
Average UV index in August
Chattaroy, WA
- 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 February, November and December (UV index 1).
Average cloud cover in August
Chattaroy, WA
- Average cloud cover in August: 13
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in August
Chattaroy, WA
- Average visibility in August: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).
Chattaroy, Washington, USA
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