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
Transitioning into August, Holly Hill experiences an average high-temperature of a still hot 89.2°F (31.8°C), marking a minor shift from the preceding month. The mean low-temperature during August nights is a pleasant 72.1°F (22.3°C).Heat index
The heat index value during August is appraised at an extremely hot 107.6°F (42°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.Heat index values are typically calculated for conditions of shade and a light breeze. 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', takes into account both air temperature and humidity to illustrate what people actually feel. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. When body heat isn't effectively managed, risks of dehydration and overheating amplify.
Humidity
May, August, September and December, with an average relative humidity of 77%, are the most humid months.Rainfall
The month with the most rainfall is August, when the rain falls for 21 days and typically aggregates up to 3.94" (100mm) of precipitation.Snowfall
In Holly Hill, snow does not fall in March through December.Daylight
In August, the average length of the day is 13h and 21min.On the first day of the month, sunrise is at 6:35 am and sunset at 8:20 pm. On the last day of August, sunrise is at 6:55 am and sunset at 7:47 pm EDT.
Sunshine
In Holly Hill, the average sunshine in August is 10.3h.UV index
June through August, with an average maximum UV index of 7, are months with the highest UV index in Holly Hill, South Carolina. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 7 during August translates into these guidelines:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. 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
How hot is it in August?
What is the most humid month?
What is the average humidity in August?
What is the wettest month?
How much does it rain in August?
When it does not snow?
What is the average length of the day in August?
When are sunrise and sunset in August in Holly Hill?
How long on average sun shines in August in Holly Hill?
When is the highest UV index?
What is the UV index intensity in August?
Average temperature in August
Holly Hill, SC
- Average high temperature in August: 89.2°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 (54.9°F).
- Average low temperature in August: 72.1°F
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).
Average pressure in August
Holly Hill, 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
Holly Hill, SC
- Average wind speed in August: 5.5mph
The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in August
Holly Hill, SC
- Average humidity in August: 77%
The months with the highest relative humidity are May, August, September and December (77%).
The months with the lowest relative humidity are January and November (72%).
Average rainfall in August
Holly Hill, SC
- Average rainfall in August: 3.94"
The wettest month (with the highest rainfall) is August (3.94").
The driest month (with the least rainfall) is November (1.69").
Average rainfall days in August
Holly Hill, SC
- Average rainfall days in August: 21 days
The month with the highest number of rainy days is August (21 days).
The month with the least rainy days is November (7.3 days).
Average snowfall in August
Holly Hill, SC
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in August
Holly Hill, SC
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in August /
Average sunshine in August
Holly Hill, 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 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in August
Holly Hill, SC
- Average sunshine days in August: 7.9 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is August (7.9 days).
Average UV index in August
Holly Hill, 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, February and December (UV index 3).
Average cloud cover in August
Holly Hill, SC
- Average cloud cover in August: 34
The months with the most cloud cover are February and December (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility in August
Holly Hill, 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).
Holly Hill, South Carolina, USA
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