August weather forecast
Manassas Park, VA

Weather in August

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

Temperature

In August, the average high-temperature is essentially the same as in July - a moderately hot 85.8°F (29.9°C). The average low-temperature, in August, is 65.8°F (18.8°C).

Heat index

The average heat index in August is calculated to be a torrid 96.8°F (36°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
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 'apparent temperature', 'real feel', 'felt air temperature', or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like activity, pregnancy, metabolic differences, 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. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in August in Manassas Park is 74%.

Rainfall

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

Snowfall

In Manassas Park, snow does not fall in May through October.

Daylight

In Manassas Park, the average length of the day in August is 13h and 38min.
On the first day of the month, sunrise is at 6:11 am and sunset at 8:21 pm. On the last day of August, sunrise is at 6:38 am and sunset at 7:42 pm EDT.

Sunshine

In Manassas Park, the average sunshine in August is 10.1h.

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 threat to health 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. Fair-skinned people may get burned in less than 20 minutes. 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.
[Resources]

FAQ

What is the temperature in August in Manassas Park?

In August, the average high-temperature is 85.8°F (29.9°C), and the average low-temperature is 65.8°F (18.8°C). in August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is calculated to be 96.8°F (36°C).

What is the average humidity in August in Manassas Park?

The average relative humidity in August is 74%.

What is the rainiest month in Manassas Park?

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

How many days does it rain in August in Manassas Park?

In August, the rain falls for 16.3 days. Throughout August, 3.43" (87mm) of precipitation is accumulated.

When it does not snow in Manassas Park?

May through October are months without snowfall in Manassas Park.

What is the average length of the day in August in Manassas Park?

The average day length in August in Manassas Park is 13h and 38min.

What time are sunrise and sunset in August in Manassas Park?

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 7:42 pm EDT.

How long on average sun shines in August in Manassas Park?

In Manassas Park, the average sunshine duration in August is 10.1h.

When is the highest UV index in Manassas Park?

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

How high is the UV index in August in Manassas Park?

In Manassas Park, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health risk 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
Manassas Park, VA

Average temperature in August - Manassas Park, 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).

[Resources]

Average pressure in August
Manassas Park, VA

Average pressure in August - Manassas Park, 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).

[Resources]

Average wind speed in August
Manassas Park, VA

Average wind speed in August - Manassas Park, 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).

[Resources]

Average humidity in August
Manassas Park, VA

Average humidity in August - Manassas Park, 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%).

[Resources]

Average rainfall in August
Manassas Park, VA

Average rainfall in August - Manassas Park, 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").

[Resources]

Average rainfall days in August
Manassas Park, VA

Average rainfall days in August - Manassas Park, 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).

[Resources]

Average snowfall in August
Manassas Park, VA

Average snowfall in August - Manassas Park, 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").

[Resources]

Average snowfall days in August
Manassas Park, VA

Average snowfall days in August - Manassas Park, 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).

[Resources]

Average daylight in August /
Average sunshine in August
Manassas Park, VA

Average daylight in August / Average sunshine in August - Manassas Park, 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).

[Resources]

Average sunshine days in August
Manassas Park, VA

Average sunshine days in August - Manassas Park, 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).

[Resources]

Average UV index in August
Manassas Park, VA

Average UV index in August - Manassas Park, 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).

[Resources]

Average cloud cover in August
Manassas Park, VA

Average cloud cover in August - Manassas Park, 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).

[Resources]

Average visibility in August
Manassas Park, VA

Average visibility in August - Manassas Park, 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).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location