August weather forecast
Quantico, VA

Weather in August

The last month of the summer, August, is another hot month in Quantico, Virginia, with an average temperature fluctuating between 66°F (18.9°C) and 86.2°F (30.1°C).

Temperature

In Quantico, the average high-temperature in August is essentially the same as in July - a still hot 86.2°F (30.1°C). In Quantico, the average low-temperature is 66°F (18.9°C).

Heat index

In August, the average heat index is appraised at a sweltering 98.6°F (37°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'felt air temperature', 'feels like', or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like metabolic differences, differences in body mass, height, and shape, clothing, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. 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 heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Quantico, Virginia, the average relative humidity in August is 75%.

Rainfall

The month with the most rainfall is August, when the rain falls for 16 days and typically aggregates up to 3.66" (93mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Quantico, the average length of the day in August is 13h and 37min.
On the first day of August in Quantico, sunrise is at 6:11 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 7:41 pm EDT.

Sunshine

In Quantico, 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 of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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.
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FAQ

What is the temperature in August in Quantico?

The average high-temperature, in August, in Quantico, Virginia, is 86.2°F (30.1°C), while the average low-temperature is 66°F (18.9°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in August is appraised at 98.6°F (37°C).

What is the average humidity in August in Quantico?

The average relative humidity in August in Quantico, Virginia, is 75%.

What is the rainiest month in Quantico?

The month with the most rainfall is August, when the rain falls for 16 days and typically aggregates up to 3.66" (93mm) of precipitation.

How much does it rain in Quantico in August?

In Quantico, Virginia, in August, during 16 rainfall days, 3.66" (93mm) of precipitation is typically accumulated.

When it does not snow in Quantico?

In Quantico, snow does not fall in May through October.

How many hours of daylight does Quantico have in August?

In Quantico, Virginia, the average day length in August is 13h and 37min.

When is the sunrise / sunset in August in Quantico?

In August, on the first day of the month, sunrise is at 6:11 am and sunset at 8:19 pm. On the last day of the month, in Quantico, Virginia, sunrise is at 6:37 am and sunset at 7:41 pm EDT.

How long on average sun shines in August in Quantico?

In August, the average sunshine duration in Quantico is 10h.

When is the highest UV index in Quantico?

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

What is the UV index reading in August in Quantico?

In August, the average daily maximum UV index in Quantico is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Quantico, VA

Average temperature in August - Quantico, VA
  • Average high temperature in August: 86.2°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in August: 66°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).

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Average pressure in August
Quantico, VA

Average pressure in August - Quantico, 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).

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Average wind speed in August
Quantico, VA

Average wind speed in August - Quantico, VA
  • Average wind speed in August: 4.7mph

The windiest months (with the highest average wind speed) are March and April (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in August
Quantico, VA

Average humidity in August - Quantico, VA
  • Average humidity in August: 75%

The months with the highest relative humidity are October and December (78%).
The months with the lowest relative humidity are January, April and July (73%).

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Average rainfall in August
Quantico, VA

Average rainfall in August - Quantico, VA
  • Average rainfall in August: 3.66"

The wettest month (with the highest rainfall) is August (3.66").
The driest month (with the least rainfall) is January (1.97").

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Average rainfall days in August
Quantico, VA

Average rainfall days in August - Quantico, VA
  • Average rainfall days in August: 16 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is November (8.7 days).

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Average snowfall in August
Quantico, VA

Average snowfall in August - Quantico, VA
  • Average snowfall in August: 0"

The month with the highest snowfall is January (2.52").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Quantico, VA

Average snowfall days in August - Quantico, VA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in August /
Average sunshine in August
Quantico, VA

Average daylight in August / Average sunshine in August - Quantico, VA
  • Average daylight in August: 13h and 37min

The month with the longest days is June (Average daylight: 14h and 49min).
The month with the shortest days is December (Average daylight: 9h and 32min).

  • Average sunshine in August: 10h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).

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Average sunshine days in August
Quantico, VA

Average sunshine days in August - Quantico, VA
  • Average sunshine days in August: 13.1 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.5 days).

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Average UV index in August
Quantico, VA

Average UV index in August - Quantico, 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).

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Average cloud cover in August
Quantico, VA

Average cloud cover in August - Quantico, VA
  • Average cloud cover in August: 36

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in August
Quantico, VA

Average visibility in August - Quantico, VA
  • Average visibility in August: 6mi

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

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