August weather forecast
Bull Run, VA

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Weather in August

August, the last month of the summer in Bull Run, is another warm month, with an average temperature varying between 65.8°F (18.8°C) and 85.8°F (29.9°C).

Temperature

As Bull Run welcomes August, the average high-temperature records at a moderately hot 85.8°F (29.9°C), marking an insignificant deviation from the prior month. Bull Run experiences an average low-temperature of 65.8°F (18.8°C) in the month of August.

Heat index

During August, the heat index is evaluated at a very hot 96.8°F (36°C). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

The average relative humidity in August is 74%.

Rainfall

The month with the most rainfall in Bull Run is August, when the rain falls for 16.3 days and typically aggregates up to 3.43" (87mm) of precipitation.

Snowfall

In Bull Run, snow does not fall in May through October.

Daylight

In August, the average length of the day is 13h and 38min.
On the first day of August in Bull Run, Virginia, sunrise is at 6:12 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 7:41 pm EDT.

Sunshine

The average sunshine in August is 10.1h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 6 during August translates into the following recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot in Bull Run during August?

The average high-temperature, in August, in Bull Run, is 85.8°F (29.9°C), while the average low-temperature is 65.8°F (18.8°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is evaluated at 96.8°F (36°C).

What is the average humidity in August in Bull Run?

In Bull Run, Virginia, the average relative humidity in August is 74%.

What is the wettest month in Bull Run?

August is the month with the most rainfall in Bull Run, Virginia. Rain falls for 16.3 days and accumulates 3.43" (87mm) of precipitation.

How much does it rain in Bull Run in August?

In Bull Run, in August, during 16.3 rainfall days, 3.43" (87mm) of precipitation is typically accumulated.

When it does not snow in Bull Run?

May through October are months without snowfall in Bull Run.

What is the average length of the day in August in Bull Run?

In Bull Run, the average day length in August is 13h and 38min.

When are sunrise and sunset in August in Bull Run?

In August, on the first day of the month, sunrise is at 6:12 am and sunset at 8:20 pm. On the last day of the month, in Bull Run, sunrise is at 6:38 am and sunset at 7:41 pm EDT.

How many hours of sunshine does Bull Run have in August?

In August, the average sunshine duration in Bull Run is 10.1h.

What are the months with the highest UV index in Bull Run?

May through August, with an average maximum UV index of 6, are months with the highest UV index in Bull Run.

What is the UV index reading in August in Bull Run?

The average daily maximum UV index in August in Bull Run, Virginia, is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Bull Run, VA

Average temperature in August - Bull Run, VA
  • Average high temperature in August: 85.8°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (40.6°F).

  • Average low temperature in August: 65.8°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).

Average pressure in August
Bull Run, VA

Average pressure in August - Bull Run, VA
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in August
Bull Run, VA

Average wind speed in August - Bull Run, VA
  • Average wind speed in August: 4.6mph

The windiest months (with the highest average wind speed) are March and April (7mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

Average humidity in August
Bull Run, VA

Average humidity in August - Bull Run, VA
  • Average humidity in August: 74%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (72%).

Average rainfall in August
Bull Run, VA

Average rainfall in August - Bull Run, VA
  • Average rainfall in August: 3.43"

The wettest month (with the highest rainfall) is August (3.43").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in August
Bull Run, VA

Average rainfall days in August - Bull Run, VA
  • Average rainfall days in August: 16.3 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is November (9.3 days).

Average snowfall in August
Bull Run, VA

Average snowfall in August - Bull Run, VA
  • Average snowfall in August: 0"

The month with the highest snowfall is January (3.7").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Bull Run, VA

Average snowfall days in August - Bull Run, VA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Bull Run, VA

Average daylight in August / Average sunshine in August - Bull Run, 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 12min).

Average sunshine days in August
Bull Run, VA

Average sunshine days in August - Bull Run, VA
  • Average sunshine days in August: 13 days

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (11.7 days).

Average UV index in August
Bull Run, VA

Average UV index in August - Bull Run, 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
Bull Run, VA

Average cloud cover in August - Bull Run, VA
  • Average cloud cover in August: 34

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in August
Bull Run, VA

Average visibility in August - Bull Run, VA
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, June, July, August and November (6mi).
The months with the lowest visibility are May, September, October and December (5mi).

Bull Run, Virginia, USA

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