August weather forecast
Stone Mountain, GA

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Weather in August

The last month of the summer, August, is another hot month in Stone Mountain, Georgia, with an average temperature fluctuating between 70.3°F (21.3°C) and 89.1°F (31.7°C).

Temperature

August's onset records an average high-temperature of a still hot 89.1°F (31.7°C), a near match to July's 90.5°F (32.5°C). In August, Stone Mountain experiences an average nighttime temperature of 70.3°F (21.3°C).

Heat index

The heat index in August is appraised at a scorching 104°F (40°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

The average relative humidity in August is 71%.

Rainfall

August is the month with the most rainfall. Rain falls for 21.2 days and accumulates 5.35" (136mm) of precipitation.

Snowfall

In Stone Mountain, snow does not fall in April through October.

Daylight

In August, the average length of the day is 13h and 22min.
On the first day of the month, sunrise is at 6:49 am and sunset at 8:36 pm. On the last day of August, sunrise is at 7:10 am and sunset at 8:03 pm EDT.

Sunshine

In August, the average sunshine is 9.5h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 6 during August morphs into the following directions:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during August?

The average high-temperature and low-temperature during August are 89.1°F (31.7°C) and 70.3°F (21.3°C) respectively. In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is appraised at 104°F (40°C).

What is the average humidity in August?

The average relative humidity in August is 71%.

What is the wettest month?

August is the month with the most rainfall. Rain falls for 21.2 days and accumulates 5.35" (136mm) of precipitation.

How many days does it rain in August?

In Stone Mountain, Georgia, in August, during 21.2 rainfall days, 5.35" (136mm) of precipitation is typically accumulated.

When it does not snow?

In Stone Mountain, Georgia, snow does not fall in April through October.

How many hours of daylight does Stone Mountain have in August?

The average day length in August is 13h and 22min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:49 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 8:03 pm EDT.

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

The average sunshine duration in August in Stone Mountain is 9.5h.

What is the month with the highest UV index?

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

What is the UV index reading in August?

In Stone Mountain, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health threat 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
Stone Mountain, GA

Average temperature in August - Stone Mountain, GA
  • Average high temperature in August: 89.1°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (50.5°F).

  • Average low temperature in August: 70.3°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).

Average pressure in August
Stone Mountain, GA

Average pressure in August - Stone Mountain, GA
  • Average pressure in August: 30"Hg

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

Average wind speed in August
Stone Mountain, GA

Average wind speed in August - Stone Mountain, GA
  • Average wind speed in August: 4.5mph

The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in August
Stone Mountain, GA

Average humidity in August - Stone Mountain, GA
  • Average humidity in August: 71%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).

Average rainfall in August
Stone Mountain, GA

Average rainfall in August - Stone Mountain, GA
  • Average rainfall in August: 5.35"

The wettest month (with the highest rainfall) is August (5.35").
The driest month (with the least rainfall) is October (2.2").

Average rainfall days in August
Stone Mountain, GA

Average rainfall days in August - Stone Mountain, GA
  • Average rainfall days in August: 21.2 days

The month with the highest number of rainy days is July (22.6 days).
The month with the least rainy days is November (9.9 days).

Average snowfall in August
Stone Mountain, GA

Average snowfall in August - Stone Mountain, GA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Stone Mountain, GA

Average snowfall days in August - Stone Mountain, GA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (0.9 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
Stone Mountain, GA

Average daylight in August / Average sunshine in August - Stone Mountain, GA
  • Average daylight in August: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in August: 9h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in August
Stone Mountain, GA

Average sunshine days in August - Stone Mountain, GA
  • Average sunshine days in August: 7.9 days

The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is July (6.9 days).

Average UV index in August
Stone Mountain, GA

Average UV index in August - Stone Mountain, GA
  • 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).

Average cloud cover in August
Stone Mountain, GA

Average cloud cover in August - Stone Mountain, GA
  • Average cloud cover in August: 33

The months with the most cloud cover are February and December (Cloud cover 45).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in August
Stone Mountain, GA

Average visibility in August - Stone Mountain, GA
  • 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).

Stone Mountain, Georgia, USA

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