August weather forecast
Leesburg, VA

Share

Weather in August

The last month of the summer, August, is also a moderately hot month in Leesburg, Virginia, with an average temperature varying between 84.7°F (29.3°C) and 64.4°F (18°C).

Temperature

The arrival of August marks a slight shift to an average high-temperature of a warm 84.7°F (29.3°C) from July's 86.5°F (30.3°C). The low-temperature averages to a refreshing 64.4°F (18°C) during the nights of August.

Heat index

The heat index value for August is computed to be a hot 93.2°F (34°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.

Humidity

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

Rainfall

August is the month with the most rainfall. Rain falls for 16.6 days and accumulates 3.54" (90mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In August, the average length of the day is 13h and 39min.
On the first day of August, sunrise is at 6:11 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 7:41 pm EDT.

Sunshine

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

UV index

May through 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 threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 6 during August translates into the following directions:
Deflect overexposure. Sun protection is a necessity. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in August?

The high-temperature, in August, in Leesburg, is 84.7°F (29.3°C), while the low-temperature averages to 64.4°F (18°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in August is computed to be 93.2°F (34°C).

What is the average humidity in August?

The average relative humidity in August is 74%.

What is the rainiest month?

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.

How many days does it rain in August?

In Leesburg, in August, it is raining for 16.6 days, with typically 3.54" (90mm) of accumulated precipitation.

When it does not snow?

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

What is the average length of the day in August?

In Leesburg, the average day length in August is 13h and 39min.

What time are sunrise and sunset in August in Leesburg?

In August, on the first day of the month, sunrise is at 6:11 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 7:41 pm EDT.

How long on average sun shines in August?

In August, the average sunshine duration is 10.2h.

When is the highest UV index?

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 August, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
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
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).

Average pressure in August
Leesburg, VA

Average pressure in August - Leesburg, 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 (29.95"Hg).

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).

Average humidity in August
Leesburg, VA

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

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

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").

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).

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

Average snowfall days in August
Leesburg, VA

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

The months with the highest number of snowfall days are January and February (5.5 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
Leesburg, VA

Average daylight in August / Average sunshine in August - Leesburg, VA
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
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 48min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

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).

Average UV index in August
Leesburg, VA

Average UV index in August - Leesburg, 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
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).

Average visibility in August
Leesburg, VA

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

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

Leesburg, Virginia, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location