August weather forecast
Mountcastle, VA

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Weather in August

The last month of the summer, August, is another tropical month in Mountcastle, Virginia, with temperature in the range of an average high of 87.1°F (30.6°C) and an average low of 68.2°F (20.1°C).

Temperature

The transition into August is marked with an average high-temperature of a still hot 87.1°F (30.6°C), showing an insignificant shift from July's 89.2°F (31.8°C). The average low-temperature of 68.2°F (20.1°C) is witnessed in Mountcastle during August.

Heat index

Throughout August, the heat index is calculated to be a fiery hot 100.4°F (38°C). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'real feel', reflects the blend of air temperature and relative humidity to give a temperature impression. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In August, the average relative humidity in Mountcastle is 75%.

Rainfall

The month with the most rainfall in Mountcastle is August, when the rain falls for 17.4 days and typically aggregates up to 3.7" (94mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in August in Mountcastle is 13h and 34min.
On the first day of August in Mountcastle, sunrise is at 6:13 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 7:38 pm EDT.

Sunshine

The average sunshine in August is 10h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Mountcastle. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: A daily high UV index of 6 in August leads to these guidelines:
Ward off overexposure. Defence against solar harm is crucial. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
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Frequently asked questions

How hot is it in Mountcastle in August?

During August, Mountcastle experiences an average high-temperature of 87.1°F (30.6°C) and a low-temperature of 68.2°F (20.1°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in August is calculated to be 100.4°F (38°C).

What is the average humidity in August in Mountcastle?

In Mountcastle, Virginia, the average relative humidity in August is 75%.

What is the wettest month in Mountcastle?

The month with the most rainfall is August, when the rain falls for 17.4 days and typically aggregates up to 3.7" (94mm) of precipitation.

How much does it rain in Mountcastle in August?

In Mountcastle, Virginia, in August, during 17.4 rainfall days, 3.7" (94mm) of precipitation is typically accumulated.

When it does not snow in Mountcastle?

May through October are months without snowfall in Mountcastle.

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

The average day length in August is 13h and 34min.

When is the sunrise / sunset in August in Mountcastle?

In August, on the first day of the month, sunrise is at 6:13 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 7:38 pm EDT.

How many hours of sunshine does Mountcastle have in August?

In August, the average sunshine duration is 10h.

What is the month with the highest UV index in Mountcastle?

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 Mountcastle?

In Mountcastle, Virginia, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's 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
Mountcastle, VA

Average temperature in August - Mountcastle, VA
  • Average high temperature in August: 87.1°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in August: 68.2°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

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Average pressure in August
Mountcastle, VA

Average pressure in August - Mountcastle, 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).

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Average wind speed in August
Mountcastle, VA

Average wind speed in August - Mountcastle, VA
  • Average wind speed in August: 5.3mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in August
Mountcastle, VA

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

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is July (73%).

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Average rainfall in August
Mountcastle, VA

Average rainfall in August - Mountcastle, VA
  • Average rainfall in August: 3.7"

The wettest month (with the highest rainfall) is August (3.7").
The driest month (with the least rainfall) is September (2.01").

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Average rainfall days in August
Mountcastle, VA

Average rainfall days in August - Mountcastle, VA
  • Average rainfall days in August: 17.4 days

The month with the highest number of rainy days is May (18.4 days).
The months with the least rainy days are January and November (10.2 days).

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Average snowfall in August
Mountcastle, VA

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

The month with the highest snowfall is February (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Mountcastle, VA

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

The month with the highest number of snowfall days is February (3.3 days).
The 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
Mountcastle, VA

Average daylight in August / Average sunshine in August - Mountcastle, 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 0min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

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Average sunshine days in August
Mountcastle, VA

Average sunshine days in August - Mountcastle, VA
  • Average sunshine days in August: 11.3 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (10.9 days).

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Average UV index in August
Mountcastle, VA

Average UV index in August - Mountcastle, 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 and December (UV index 2).

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Average cloud cover in August
Mountcastle, VA

Average cloud cover in August - Mountcastle, VA
  • Average cloud cover in August: 36

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 33).

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Average visibility in August
Mountcastle, VA

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

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

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Mountcastle, Virginia, USA

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