August weather forecast
Herndonville, GA

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Weather in August

The last month of the summer, August, is another tropical month in Herndonville, Georgia, with temperature in the range of an average low of 69.8°F (21°C) and an average high of 89.2°F (31.8°C).

Temperature

In Herndonville, August's average high-temperature stands at a still hot 89.2°F (31.8°C), closely related to the preceding month. The nighttime temperature dips to a pleasant 69.8°F (21°C) on average during August.

Heat index

In August, the heat index is appraised at a blisteringly hot 105.8°F (41°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
Factoring in the heat index, values are geared towards shaded areas with light breezes. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In August, the average relative humidity is 74%.

Rainfall

The month with the most rainfall is August, when the rain falls for 21.1 days and typically aggregates up to 4.96" (126mm) of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

In August, the average length of the day is 13h and 22min.
On the first day of the month, sunrise is at 6:47 am and sunset at 8:34 pm. On the last day of August, sunrise is at 7:08 am and sunset at 8:01 pm EDT.

Sunshine

The average sunshine in August is 9.6h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 6 in August interprets into the following advice:
Prevent overexposure. Protection from the sun's harmful effects is needed. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in August?

In August, the average high-temperature and low-temperature are 89.2°F (31.8°C) and 69.8°F (21°C) respectively. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is appraised at 105.8°F (41°C).

What is the average humidity in August?

The average relative humidity in August is 74%.

What is the wettest month?

The month with the most rainfall is August, when the rain falls for 21.1 days and typically aggregates up to 4.96" (126mm) of precipitation.

How much does it rain in August?

In Herndonville, in August, it is raining for 21.1 days, with typically 4.96" (126mm) of accumulated precipitation.

When it does not snow?

April through November are months without snowfall.

What is the average length of the day in August?

In August, the average day length is 13h and 22min.

When are sunrise and sunset in August in Herndonville?

In August, on the first day of the month, sunrise is at 6:47 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 8:01 pm EDT.

How many hours of sunshine does Herndonville have in August?

The average sunshine duration in August in Herndonville is 9.6h.

When is the highest UV index in Herndonville?

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

What is the UV index reading in August?

In Herndonville, 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 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
Herndonville, GA

Average temperature in August - Herndonville, GA
  • Average high temperature in August: 89.2°F

The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (51.4°F).

  • Average low temperature in August: 69.8°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).

Average pressure in August
Herndonville, GA

Average pressure in August - Herndonville, 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
Herndonville, GA

Average wind speed in August - Herndonville, GA
  • Average wind speed in August: 4.2mph

The windiest month (with the highest average wind speed) is January (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in August
Herndonville, GA

Average humidity in August - Herndonville, GA
  • Average humidity in August: 74%

The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are July, October and November (72%).

Average rainfall in August
Herndonville, GA

Average rainfall in August - Herndonville, GA
  • Average rainfall in August: 4.96"

The wettest month (with the highest rainfall) is August (4.96").
The driest month (with the least rainfall) is October (2.2").

Average rainfall days in August
Herndonville, GA

Average rainfall days in August - Herndonville, GA
  • Average rainfall days in August: 21.1 days

The month with the highest number of rainy days is July (22.3 days).
The month with the least rainy days is October (9.3 days).

Average snowfall in August
Herndonville, GA

Average snowfall in August - Herndonville, GA
  • Average snowfall in August: 0"

The months with the highest snowfall are January and December (0.35").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in August
Herndonville, GA

Average snowfall days in August - Herndonville, GA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (0.8 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
Herndonville, GA

Average daylight in August / Average sunshine in August - Herndonville, 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 4min

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 12min).

Average sunshine days in August
Herndonville, GA

Average sunshine days in August - Herndonville, GA
  • Average sunshine days in August: 7.9 days

The month with the most sunshine days is October (20.2 days).
The month with the least sunshine days is July (7.2 days).

Average UV index in August
Herndonville, GA

Average UV index in August - Herndonville, GA
  • Average UV index in August: 6

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

Average cloud cover in August
Herndonville, GA

Average cloud cover in August - Herndonville, GA
  • Average cloud cover in August: 33

The months with the most cloud cover are February and December (Cloud cover 43).
The months with the least cloud cover are June and October (Cloud cover 30).

Average visibility in August
Herndonville, GA

Average visibility in August - Herndonville, 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).

Herndonville, Georgia, USA

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