August weather forecast and climate
Leesburg, VA

Weather in August

The last month of the summer, August, is another warm month in Leesburg, Virginia, with average temperature fluctuating between 64.4°F (18°C) and 84.7°F (29.3°C).

Temperature

In Leesburg, the average high-temperature is practically the same as in July - a warm 84.7°F (29.3°C). The average low-temperature, in August, is 64.4°F (18°C).

Heat index

In August, the average heat index is evaluated at a tropical 93.6°F (34.2°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'apparent temperature', or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like activity, clothing, pregnancy, and differences in body mass, height, and shape affect individual temperature impact. 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 especially crucial for babies and toddlers. 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.

Humidity

The average relative humidity in August is 74%.

Rainfall

The month with the most rainfall is August when the rain falls for 16.6 days and typically aggregates up to 3.54" (90mm) of precipitation.

Snowfall

May through October are months without snowfall in Leesburg, Virginia.

Daylight

The average length of the day in Leesburg is 13.6h.

Sunshine

In Leesburg, the average sunshine in August is 10.2h.

UV index

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 threat to health from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 6 in August interpret into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in August in Leesburg?

In Leesburg, Virginia, in August, the average high-temperature is 84.7°F (29.3°C), and the average low-temperature is 64.4°F (18°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is evaluated at 93.6°F (34.2°C).

What is the average humidity in August in Leesburg?

In August, the average relative humidity in Leesburg is 74%.

What is the rainiest month in Leesburg?

The month with the most rainfall in Leesburg, Virginia, is August when the rain falls for 16.6 days and typically aggregates up to 3.54" (90mm) of precipitation.

How many days does it rain in August in Leesburg?

In August, in Leesburg, Virginia, the rain falls for 16.6 days. Throughout August, 3.54" (90mm) of precipitation is accumulated.

When it does not snow in Leesburg?

May through October are months without snowfall in Leesburg.

What is the average length of the day in August in Leesburg?

In August, the average length of the day in Leesburg is 13.6h.

How many hours of sunshine does Leesburg have in August?

In Leesburg, Virginia, the average sunshine in August is 10.2h.

What are the months with the highest UV index in Leesburg?

Months with the highest UV index in Leesburg, Virginia, are May through August, with an average maximum UV index of 6.

How high is the UV index in August in Leesburg?

The average daily maximum UV index in August in Leesburg is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from the exposure to the Sun's UV rays.

Average temperature in August
Leesburg, VA

Average temperature in August - Leesburg, VA
  • Average high temperature in August: 84.7°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in August: 64.4°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

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Average pressure in August
Leesburg, VA

Average pressure in August - Leesburg, VA
  • Average pressure in August: 30"

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

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Average wind speed in August
Leesburg, VA

Average wind speed in August - Leesburg, VA
  • Average wind speed in August: 4.5mph

The windiest month (with the highest average wind speed) is March (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

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Average humidity in August
Leesburg, VA

Average humidity in August - Leesburg, VA
  • Average humidity in August: 74%

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

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Average rainfall in August
Leesburg, VA

Average rainfall in August - Leesburg, VA
  • Average rainfall in August: 3.54"

The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is September (1.97").

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Average rainfall days in August
Leesburg, VA

Average rainfall days in August - Leesburg, VA
  • Average rainfall days in August: 16.6 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (9.6 days).

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Average snowfall in August
Leesburg, VA

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

The month with the highest snowfall is January (3.66").
Months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Leesburg, VA

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

Months with the highest number of snowfall days are January and February (5.5 days).
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
Leesburg, VA

Average daylight in August / Average sunshine in August - Leesburg, VA
  • Average daylight in August: 13.6h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in August: 10.2h

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is January (Average sunshine: 5h).

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Average sunshine days in August
Leesburg, VA

Average sunshine days in August - Leesburg, VA
  • Average sunshine days in August: 12.1 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (11.3 days).

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Average UV index in August
Leesburg, VA

Average UV index in August - Leesburg, VA
  • Average UV index in August: 6

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in August
Leesburg, VA

Average cloud cover in August - Leesburg, VA
  • Average cloud cover in August: 33

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in August
Leesburg, VA

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

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

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