August weather forecast
Williamstown, GA

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Weather in August

August, the last month of the summer in Williamstown, is also a moderately hot month, with an average temperature fluctuating between 63.7°F (17.6°C) and 84.4°F (29.1°C).

Temperature

The onset of August marks an average high-temperature of a still warm 84.4°F (29.1°C), hardly differing from July's 84.9°F (29.4°C). In August, the temperature drops to an average of 63.7°F (17.6°C) at night.

Heat index

The heat index in August is calculated to be a sweltering 95°F (35°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In August, the average relative humidity is 78%.

Rainfall

In August, the rain falls for 18.5 days. Throughout August, 3.82" (97mm) of precipitation is accumulated. In Williamstown, during the entire year, the rain falls for 190.7 days and collects up to 47.32" (1202mm) of precipitation.

Snowfall

In Williamstown, Georgia, snow does not fall in May through September.

Daylight

In August, the average length of the day is 13h and 26min.
On the first day of the month, sunrise is at 6:47 am and sunset at 8:39 pm. On the last day of August, sunrise is at 7:09 am and sunset at 8:05 pm EDT.

Sunshine

In Williamstown, the average sunshine in August is 9.5h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In August, the maximum UV index of 6 suggests this advice:
Resist extreme sun exposure. Guarding against solar damage is essential. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Experience reduced UV exposure by about half when donning a wide-brim hat.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during August?

In August, in Williamstown, the average high-temperature is 84.4°F (29.1°C), and the average low-temperature is 63.7°F (17.6°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is calculated to be 95°F (35°C).

What is the average humidity in August?

In Williamstown, the average relative humidity in August is 78%.

How many days does it rain in August?

In August, the rain falls for 18.5 days. Throughout August, 3.82" (97mm) of precipitation is accumulated.

When it does not snow?

May through September are months without snowfall.

What is the average length of the day in August?

In August, the average day length is 13h and 26min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:47 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 8:05 pm EDT.

How long on average sun shines in August?

The average sunshine duration in August is 9.5h.

What are the months with the highest UV index?

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

How high is the UV index in August?

In August, the average daily maximum UV index in Williamstown is 6. A UV Index value of 6 to 7 symbolizes 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
Williamstown, GA

Average temperature in August - Williamstown, GA
  • Average high temperature in August: 84.4°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in August: 63.7°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

Average pressure in August
Williamstown, GA

Average pressure in August - Williamstown, GA
  • Average pressure in August: 30.01"Hg

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

Average wind speed in August
Williamstown, GA

Average wind speed in August - Williamstown, GA
  • Average wind speed in August: 3.7mph

The windiest month (with the highest average wind speed) is February (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity in August
Williamstown, GA

Average humidity in August - Williamstown, GA
  • Average humidity in August: 78%

The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are October and November (76%).

Average rainfall in August
Williamstown, GA

Average rainfall in August - Williamstown, GA
  • Average rainfall in August: 3.82"

The wettest month (with the highest rainfall) is December (4.8").
The driest month (with the least rainfall) is September (2.91").

Average rainfall days in August
Williamstown, GA

Average rainfall days in August - Williamstown, GA
  • Average rainfall days in August: 18.5 days

The months with the highest number of rainy days are June and July (19.8 days).
The month with the least rainy days is November (11.3 days).

Average snowfall in August
Williamstown, GA

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

The month with the highest snowfall is February (2.13").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Williamstown, GA

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

The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Williamstown, GA

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

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 54min).

  • Average sunshine in August: 9h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in August
Williamstown, GA

Average sunshine days in August - Williamstown, GA
  • Average sunshine days in August: 11.2 days

The month with the most sunshine days is October (17.4 days).
The month with the least sunshine days is June (8 days).

Average UV index in August
Williamstown, GA

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

Average cloud cover in August
Williamstown, GA

Average cloud cover in August - Williamstown, GA
  • Average cloud cover in August: 34

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 32).

Average visibility in August
Williamstown, GA

Average visibility in August - Williamstown, GA
  • Average visibility in August: 5mi

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

Williamstown, Georgia, USA

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