Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
August's arrival registers an average high-temperature of a moderately hot 85.5°F (29.7°C), closely aligning with the temperature of the previous month. During August, Charleston's temperature averages to a comfortable 66.7°F (19.3°C) at night.Heat index
In August, the heat index is estimated at a very hot 96.8°F (36°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.The metrics for the heat index are tailored for both shady environments and light winds. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.
Humidity
In August, the average relative humidity in Charleston is 77%.Rainfall
In Charleston, Kentucky, in August, during 12.6 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. Throughout the year, in Charleston, there are 118.1 rainfall days, and 12.28" (312mm) of precipitation is accumulated.Snowfall
In Charleston, Kentucky, snow does not fall in April through October.Daylight
In August, the average length of the day in Charleston is 13h and 33min.On the first day of August, sunrise is at 5:56 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 7:20 pm CDT.
Sunshine
The average sunshine in August in Charleston, Kentucky, is 10.4h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 6 during August translates into these guidelines:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. 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. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Charleston during August?
What is the average humidity in August in Charleston?
How much does it rain in Charleston in August?
When it does not snow in Charleston?
How many hours of daylight does Charleston have in August?
When is the sunrise / sunset in August in Charleston?
How many hours of sunshine does Charleston have in August?
What are the months with the highest UV index in Charleston?
What is the UV index reading in August in Charleston?
Average temperature in August
Charleston, KY
- Average high temperature in August: 85.5°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (41.2°F).
- Average low temperature in August: 66.7°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (28°F).
Average pressure in August
Charleston, KY
- Average pressure in August: 29.99"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in August
Charleston, KY
- Average wind speed in August: 5.6mph
The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).
Average humidity in August
Charleston, KY
- Average humidity in August: 77%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Charleston, KY
- Average rainfall in August: 1.22"
The wettest month (with the highest rainfall) is April (1.34").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in August
Charleston, KY
- Average rainfall days in August: 12.6 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is January (6.9 days).
Average snowfall in August
Charleston, KY
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Charleston, KY
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (2.9 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
Charleston, KY
- Average daylight in August: 13h and 3min
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 42min).
- Average sunshine in August: 10h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in August
Charleston, KY
- Average sunshine days in August: 16.4 days
The month with the most sunshine days is October (21.7 days).
The month with the least sunshine days is May (14.1 days).
Average UV index in August
Charleston, KY
- 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
Charleston, KY
- Average cloud cover in August: 28
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in August
Charleston, KY
- 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).
Charleston, Kentucky, USA
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