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 start of August sees the average high-temperature at a still warm 82.9°F (28.3°C), showing little difference from July's 84.6°F (29.2°C). Graves Mill experiences a consistent, yet significant, drop from daily highs to a low-temperature of 60.8°F (16°C) throughout August.Heat index
For most parts of August, the heat index is estimated at a hot 89.6°F (32°C). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.Heat index determinations are made taking into account the shade and light air movements. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', blends air temperature and moisture content to represent the felt temperature to humans. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Humidity
In August, the average relative humidity is 76%.Rainfall
The month with the most rainfall is August, when the rain falls for 6.4 days and typically aggregates up to 0.71" (18mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In August, the average length of the day is 13h and 37min.On the first day of the month, sunrise is at 6:16 am and sunset at 8:23 pm. On the last day of August, sunrise is at 6:42 am and sunset at 7:44 pm EDT.
Sunshine
The average sunshine in August is 10h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: A maximum UV index of 6 in August translates into the following recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
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?
What is the rainiest month?
How much does it rain in August?
When it does not snow?
What is the average length of the day in August?
What time are sunrise and sunset in August?
How many hours of sunshine does Graves Mill have in August?
What is the month with the highest UV index?
How high is the UV index in August?
Average temperature in August
Graves Mill, VA
- Average high temperature in August: 82.9°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (39.2°F).
- Average low temperature in August: 60.8°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in August
Graves Mill, VA
- Average pressure in August: 30"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in August
Graves Mill, VA
- Average wind speed in August: 4.1mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in August
Graves Mill, VA
- Average humidity in August: 76%
The months with the highest relative humidity are May, September, October and December (78%).
The months with the lowest relative humidity are January and July (74%).
Average rainfall in August
Graves Mill, VA
- Average rainfall in August: 0.71"
The wettest month (with the highest rainfall) is August (0.71").
The driest month (with the least rainfall) is September (0.16").
Average rainfall days in August
Graves Mill, VA
- Average rainfall days in August: 6.4 days
The month with the highest number of rainy days is April (7.3 days).
The months with the least rainy days are January and November (3.8 days).
Average snowfall in August
Graves Mill, VA
- Average snowfall in August: 0"
The month with the highest snowfall is March (0.51").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Graves Mill, VA
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and February (2.4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Graves Mill, VA
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in August: 10h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in August
Graves Mill, VA
- Average sunshine days in August: 21.5 days
The month with the most sunshine days is October (25.4 days).
The months with the least sunshine days are April, May and August (21.5 days).
Average UV index in August
Graves Mill, VA
- Average UV index in August: 6
The months with the highest UV index are May, June, July 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
Graves Mill, VA
- Average cloud cover in August: 35
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in August
Graves Mill, VA
- Average visibility in August: 5mi
The months with the highest visibility are July and November (6mi).
The month with the lowest visibility is September (4mi).
Graves Mill, Virginia, USA
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