August weather forecast
White Marsh, VA

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Weather in August

The last month of the summer, August, is another warm month in White Marsh, Virginia, with an average temperature varying between 85.6°F (29.8°C) and 71.2°F (21.8°C).

Temperature

August is marked by an average high-temperature of a warm 85.6°F (29.8°C), almost identical to the preceding month. During August, White Marsh records an average temperature of 71.2°F (21.8°C) at night.

Heat index

August's mean heat index is estimated at a fiery hot 95°F (35°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

The average relative humidity in August is 73%.

Rainfall

August is the month with the most rainfall. Rain falls for 17.3 days and accumulates 3.62" (92mm) of precipitation.

Snowfall

In White Marsh, snow does not fall in April through October.

Daylight

The average length of the day in August is 13h and 33min.
On the first day of August, sunrise is at 6:11 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:36 pm EDT.

Sunshine

In August, the average sunshine is 10.4h.

UV index

In White Marsh, 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 Sun's UV rays for the ordinary person.
Note: In August, a daily UV index of 6 turns into the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during August?

The high-temperature, in August, in White Marsh, is 85.6°F (29.8°C), while the low-temperature averages to 71.2°F (21.8°C). The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is estimated at 95°F (35°C).

What is the average humidity in August?

In August, the average relative humidity is 73%.

What is the wettest month?

The month with the most rainfall is August, when the rain falls for 17.3 days and typically aggregates up to 3.62" (92mm) of precipitation.

How many days does it rain in August?

In White Marsh, in August, it is raining for 17.3 days, with typically 3.62" (92mm) of accumulated precipitation.

When it does not snow?

In White Marsh, snow does not fall in April through October.

What is the average length of the day in August?

In White Marsh, the average day length in August is 13h and 33min.

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 6:11 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:36 pm EDT.

How many hours of sunshine does White Marsh have in August?

In August, the average sunshine duration is 10.4h.

How high is the UV index in August?

In White Marsh, the average daily maximum UV index in August is 6. A UV Index estimate 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
White Marsh, VA

Average temperature in August - White Marsh, VA
  • Average high temperature in August: 85.6°F

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in August: 71.2°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).

Average pressure in August
White Marsh, VA

Average pressure in August - White Marsh, VA
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in August
White Marsh, VA

Average wind speed in August - White Marsh, VA
  • Average wind speed in August: 6.8mph

The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).

Average humidity in August
White Marsh, VA

Average humidity in August - White Marsh, VA
  • Average humidity in August: 73%

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

Average rainfall in August
White Marsh, VA

Average rainfall in August - White Marsh, VA
  • Average rainfall in August: 3.62"

The wettest month (with the highest rainfall) is August (3.62").
The driest month (with the least rainfall) is September (2.4").

Average rainfall days in August
White Marsh, VA

Average rainfall days in August - White Marsh, VA
  • Average rainfall days in August: 17.3 days

The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is November (9.6 days).

Average snowfall in August
White Marsh, VA

Average snowfall in August - White Marsh, VA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
White Marsh, VA

Average snowfall days in August - White Marsh, VA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
White Marsh, VA

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

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

Average sunshine days in August
White Marsh, VA

Average sunshine days in August - White Marsh, VA
  • Average sunshine days in August: 11.9 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (11.5 days).

Average UV index in August
White Marsh, VA

Average UV index in August - White Marsh, VA
  • Average UV index in August: 6

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in August
White Marsh, VA

Average cloud cover in August - White Marsh, VA
  • Average cloud cover in August: 31

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in August
White Marsh, VA

Average visibility in August - White Marsh, VA
  • Average visibility in August: 6mi

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

White Marsh, Virginia, USA

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