August weather forecast
Black Mountain, NC

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Weather in August

The last month of the summer, August, is also a moderately hot month in Black Mountain, North Carolina, with an average temperature fluctuating between 82.4°F (28°C) and 60.4°F (15.8°C).

Temperature

The dawn of August sees an average high-temperature of a still warm 82.4°F (28°C), subtly contrasting with July's 83.8°F (28.8°C). The August nights bear witness to a significant drop from the daytime highs, settling at an average temperature of 60.4°F (15.8°C).

Heat index

For most parts of August, the heat index is calculated to be a hot 89.6°F (32°C). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.
Heat index details are generally centered around shaded locations and a mild breeze. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.

Humidity

The average relative humidity in August is 76%.

Rainfall

In Black Mountain, in August, during 17 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Black Mountain, during the entire year, the rain falls for 156.4 days and collects up to 27.8" (706mm) of precipitation.

Snowfall

In Black Mountain, snow does not fall in May through October.

Daylight

The average length of the day in August is 13h and 28min.
On the first day of August, sunrise is at 6:38 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 7:57 pm EDT.

Sunshine

In Black Mountain, the average sunshine in August is 10.4h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 6 in August interprets into the following recommendations:
Deflect overexposure. Sun protection is a necessity. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Jul 16, 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 Black Mountain, records 82.4°F (28°C), while the low-temperature is 60.4°F (15.8°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 89.6°F (32°C).

What is the average humidity in August?

In August, the average relative humidity is 76%.

How much does it rain in August?

In August, the rain falls for 17 days. Throughout August, 2.28" (58mm) of precipitation is accumulated.

When it does not snow?

May through October are months without snowfall.

What is the average length of the day in August?

The average day length in August is 13h and 28min.

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 6:38 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 7:57 pm EDT.

How many hours of sunshine does Black Mountain have in August?

In Black Mountain, the average sunshine duration in August is 10.4h.

When is the highest UV index in Black Mountain?

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

What is the UV index intensity in August?

The average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe 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
Black Mountain, NC

Average temperature in August - Black Mountain, NC
  • Average high temperature in August: 82.4°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (43.5°F).

  • Average low temperature in August: 60.4°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

Average pressure in August
Black Mountain, NC

Average pressure in August - Black Mountain, NC
  • Average pressure in August: 30.02"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in August
Black Mountain, NC

Average wind speed in August - Black Mountain, NC
  • Average wind speed in August: 3.4mph

The windiest months (with the highest average wind speed) are January, February and April (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).

Average humidity in August
Black Mountain, NC

Average humidity in August - Black Mountain, NC
  • Average humidity in August: 76%

The months with the highest relative humidity are May and September (78%).
The months with the lowest relative humidity are January and November (74%).

Average rainfall in August
Black Mountain, NC

Average rainfall in August - Black Mountain, NC
  • Average rainfall in August: 2.28"

The wettest months (with the highest rainfall) are April and December (3.07").
The driest month (with the least rainfall) is September (1.54").

Average rainfall days in August
Black Mountain, NC

Average rainfall days in August - Black Mountain, NC
  • Average rainfall days in August: 17 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in August
Black Mountain, NC

Average snowfall in August - Black Mountain, NC
  • Average snowfall in August: 0"

The month with the highest snowfall is December (4.37").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Black Mountain, NC

Average snowfall days in August - Black Mountain, NC
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (4.2 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
Black Mountain, NC

Average daylight in August / Average sunshine in August - Black Mountain, NC
  • Average daylight in August: 13h and 3min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

Average sunshine days in August
Black Mountain, NC

Average sunshine days in August - Black Mountain, NC
  • Average sunshine days in August: 11.7 days

The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is July (10.4 days).

Average UV index in August
Black Mountain, NC

Average UV index in August - Black Mountain, NC
  • Average UV index in August: 6

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in August
Black Mountain, NC

Average cloud cover in August - Black Mountain, NC
  • Average cloud cover in August: 33

The months with the most cloud cover are February and March (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in August
Black Mountain, NC

Average visibility in August - Black Mountain, NC
  • Average visibility in August: 6mi

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

Black Mountain, North Carolina, USA

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