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
The beginning of August records an average high-temperature of a still hot 88.9°F (31.6°C), marking a negligible difference from July's 90.5°F (32.5°C). During August, Williston consistently records a temperature low averaging a pleasant 72.5°F (22.5°C).Heat index
The average heat index in August is appraised at a blisteringly hot 105.8°F (41°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.The metrics for the heat index are tailored for both shady environments and light winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
In August, the average relative humidity in Williston is 74%.Rainfall
In Williston, in August, it is raining for 17.8 days, with typically 2.91" (74mm) of accumulated precipitation. Throughout the year, there are 157.7 rainfall days, and 30.2" (767mm) of precipitation is accumulated.Snowfall
March through November are months without snowfall in Williston.Daylight
In Williston, the average length of the day in August is 13h and 21min.On the first day of the month, sunrise is at 6:38 am and sunset at 8:25 pm. On the last day of August, sunrise is at 6:59 am and sunset at 7:51 pm EDT.
Sunshine
In August, the average sunshine in Williston is 10.4h.UV index
In August, the average daily maximum UV index in Williston is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The average daily UV index of 6 in August transforms into the following instructions:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Frequently asked questions
Is it hot in Williston during August?
What is the average humidity in August in Williston?
How much does it rain in Williston in August?
When it does not snow in Williston?
What is the average length of the day in August in Williston?
When are sunrise and sunset in August in Williston?
How long on average sun shines in August in Williston?
What is the UV index reading in August in Williston?
Average temperature in August
Williston, SC
- Average high temperature in August: 88.9°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 (54°F).
- Average low temperature in August: 72.5°F
The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).
Average pressure in August
Williston, SC
- Average pressure in August: 29.99"Hg
The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in August
Williston, SC
- Average wind speed in August: 5.8mph
The windiest months (with the highest average wind speed) are February, March and April (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in August
Williston, SC
- Average humidity in August: 74%
The month with the highest relative humidity is December (75%).
The months with the lowest relative humidity are January and November (70%).
Average rainfall in August
Williston, SC
- Average rainfall in August: 2.91"
The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is November (1.77").
Average rainfall days in August
Williston, SC
- Average rainfall days in August: 17.8 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (8.2 days).
Average snowfall in August
Williston, SC
- Average snowfall in August: 0"
The month with the highest snowfall is January (0.31").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in August
Williston, SC
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in August /
Average sunshine in August
Williston, SC
- Average daylight in August: 13h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in August: 10h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in August
Williston, SC
- Average sunshine days in August: 10.7 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in August
Williston, SC
- Average UV index in August: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in August
Williston, SC
- Average cloud cover in August: 32
The month with the most cloud cover is December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility in August
Williston, SC
- 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).
Williston, South Carolina, USA
Weather forecast for your location
2. Allow the app to use your location
