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 onset of August notes an average high-temperature of a still tropical 90.5°F (32.5°C), subtly shifted from July's 91.8°F (33.2°C). Williams witnesses a consistent average low-temperature of 73.2°F (22.9°C) throughout August.Heat index
August's mean heat index is appraised at a burning hot 113°F (45°C). Keep on guard: Heat exhaustion and heat cramps are probable. Heatstroke is a possible danger with ongoing physical activity.Always consider that heat index estimations are for light winds and places in the shade. 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 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
August and December, with an average relative humidity of 77%, are the most humid months.Rainfall
The month with the most rainfall in Williams is August, when the rain falls for 20.2 days and typically aggregates up to 3.15" (80mm) of precipitation.Snowfall
In Williams, snow does not fall in March through December.Daylight
The average length of the day in August is 13h and 20min.On the first day of August in Williams, sunrise is at 6:37 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 7:49 pm EDT.
Sunshine
In August, the average sunshine is 10.4h.UV index
June through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.Note: In August, the average maximum UV index of 7 translates into the following recommendations:
Deflect overexposure. Sun protection is a necessity. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Experience reduced UV exposure by about half when donning a wide-brim hat.
Frequently asked questions
How hot is it in Williams in August?
What are the most humid months in Williams?
What is the average humidity in August in Williams?
What is the rainiest month in Williams?
How many days does it rain in August in Williams?
When it does not snow in Williams?
How many hours of daylight does Williams have in August?
What time are sunrise and sunset in August in Williams?
How long on average sun shines in August in Williams?
What is the month with the highest UV index in Williams?
How high is the UV index in August in Williams?
Average temperature in August
Williams, SC
- Average high temperature in August: 90.5°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (56.1°F).
- Average low temperature in August: 73.2°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 (39.9°F).
Average pressure in August
Williams, SC
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in August
Williams, SC
- Average wind speed in August: 4.8mph
The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in August
Williams, SC
- Average humidity in August: 77%
The months with the highest relative humidity are August and December (77%).
The months with the lowest relative humidity are January, March and November (72%).
Average rainfall in August
Williams, SC
- Average rainfall in August: 3.15"
The wettest month (with the highest rainfall) is August (3.15").
The driest month (with the least rainfall) is November (0.75").
Average rainfall days in August
Williams, SC
- Average rainfall days in August: 20.2 days
The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is November (6.2 days).
Average snowfall in August
Williams, SC
- Average snowfall in August: 0"
The months with the highest snowfall are January and February (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in August
Williams, SC
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (0.4 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
Williams, 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 30min).
Average sunshine days in August
Williams, SC
- Average sunshine days in August: 7.3 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is July (6.9 days).
Average UV index in August
Williams, SC
- Average UV index in August: 7
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in August
Williams, SC
- Average cloud cover in August: 32
The month with the most cloud cover is December (Cloud cover 42).
The months with the least cloud cover are July and October (Cloud cover 29).
Average visibility in August
Williams, SC
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Williams, South Carolina, USA
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