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
Castlewood records an average high-temperature of a still warm 82.8°F (28.2°C) as August arrives, nearly mirroring the previous month's climate. Castlewood sees a major change from daytime highs, with the nighttime temperature dipping to a refreshing 58.8°F (14.9°C) on average during August.Heat index
The heat index in August is computed to be a tropical 89.6°F (32°C). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.Note that heat index values are valued for light wind and location in the shade. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Humidity
In August, the average relative humidity is 77%.Rainfall
In Castlewood, Virginia, during August, the rain falls for 18.2 days and regularly aggregates up to 2.72" (69mm) of precipitation. Throughout the year, there are 197.7 rainfall days, and 36.69" (932mm) of precipitation is accumulated.Snowfall
In Castlewood, snow does not fall in May through September.Daylight
The average length of the day in August is 13h and 32min.On the first day of August, sunrise is at 6:35 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 7:58 pm EDT.
Sunshine
The months with the most sunshine are June and August, with an average of 10.1h of sunshine.UV index
June and August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high daily UV index of 6 during August translates into the following directions:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during August?
What is the average humidity in August?
How much does it rain in August?
When it does not snow?
How many hours of daylight does Castlewood have in August?
When is the sunrise / sunset in August?
What are the months with the most sunshine in Castlewood?
How many hours of sunshine does Castlewood have in August?
What are the months with the highest UV index?
How high is the UV index in August?
Average temperature in August
Castlewood, VA
- Average high temperature in August: 82.8°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (40.5°F).
- Average low temperature in August: 58.8°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in August
Castlewood, VA
- Average pressure in August: 30.03"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in August
Castlewood, VA
- Average wind speed in August: 3.9mph
The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in August
Castlewood, VA
- Average humidity in August: 77%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is November (76%).
Average rainfall in August
Castlewood, VA
- Average rainfall in August: 2.72"
The wettest month (with the highest rainfall) is February (3.86").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in August
Castlewood, VA
- Average rainfall days in August: 18.2 days
The months with the highest number of rainy days are May and July (21.1 days).
The month with the least rainy days is November (11.6 days).
Average snowfall in August
Castlewood, VA
- Average snowfall in August: 0"
The month with the highest snowfall is February (5.08").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Castlewood, VA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Castlewood, VA
- Average daylight in August: 13h and 3min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in August: 10h and 1min
The months with the most sunshine are June and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in August
Castlewood, VA
- Average sunshine days in August: 10 days
The months with the most sunshine days are October and November (15 days).
The month with the least sunshine days is February (7.7 days).
Average UV index in August
Castlewood, VA
- Average UV index in August: 6
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Castlewood, VA
- Average cloud cover in August: 35
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in August
Castlewood, VA
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Castlewood, Virginia, USA
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