August weather forecast
Purcellville, VA

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Weather in August

August, the last month of the summer in Purcellville, is also a moderately hot month, with an average temperature varying between 84.6°F (29.2°C) and 64°F (17.8°C).

Temperature

During August, Purcellville records an average high-temperature of a moderately hot 84.6°F (29.2°C), marking a slight divergence from July's 86.5°F (30.3°C). Purcellville's average low-temperature in the month of August is recorded at an enjoyable 64°F (17.8°C).

Heat index

August's mean heat index is evaluated at a tropical 93.2°F (34°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', reflects the feeling of heat when considering both air temperature and humidity. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.

Humidity

In August, the average relative humidity is 75%.

Rainfall

The months with the most rainfall are May and August, with an average 3.35" (85mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In August, the average length of the day is 13h and 39min.
On the first day of the month, sunrise is at 6:12 am and sunset at 8:22 pm. On the last day of August, sunrise is at 6:39 am and sunset at 7:42 pm EDT.

Sunshine

The average sunshine in August is 10.3h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Purcellville. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In August, the UV index of 6 transforms into the following advice:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

Purcellville in August has an average high-temperature of 84.6°F (29.2°C) and an average low-temperature of 64°F (17.8°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 93.2°F (34°C).

What is the average humidity in August in Purcellville?

In August, the average relative humidity is 75%.

What is the rainiest month?

The months with the most rainfall are May and August, with an average 3.35" (85mm) of precipitation.

How many days does it rain in August?

In Purcellville, in August, it is raining for 16.7 days, with typically 3.35" (85mm) of accumulated precipitation.

When it does not snow?

May through September are months without snowfall.

How many hours of daylight does Purcellville have in August?

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

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:12 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 7:42 pm EDT.

How long on average sun shines in August?

The average sunshine duration in August is 10.3h.

What are the months with 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 intensity in August?

In Purcellville, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability 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
Purcellville, VA

Average temperature in August - Purcellville, VA
  • Average high temperature in August: 84.6°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 (38.7°F).

  • Average low temperature in August: 64°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

Average pressure in August
Purcellville, VA

Average pressure in August - Purcellville, 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
Purcellville, VA

Average wind speed in August - Purcellville, VA
  • Average wind speed in August: 4.4mph

The windiest month (with the highest average wind speed) is March (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in August
Purcellville, VA

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

The months with the highest relative humidity are October and December (78%).
The month with the lowest relative humidity is July (73%).

Average rainfall in August
Purcellville, VA

Average rainfall in August - Purcellville, VA
  • Average rainfall in August: 3.35"

The wettest months (with the highest rainfall) are May and August (3.35").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in August
Purcellville, VA

Average rainfall days in August - Purcellville, VA
  • Average rainfall days in August: 16.7 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (10.1 days).

Average snowfall in August
Purcellville, VA

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

The month with the highest snowfall is January (4.17").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Purcellville, VA

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

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Purcellville, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 6min).

Average sunshine days in August
Purcellville, VA

Average sunshine days in August - Purcellville, VA
  • Average sunshine days in August: 12.2 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (11.1 days).

Average UV index in August
Purcellville, VA

Average UV index in August - Purcellville, 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
Purcellville, VA

Average cloud cover in August - Purcellville, 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
Purcellville, VA

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

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

Purcellville, Virginia, USA

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