Greenwood
South Carolina, USA
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Greenwood, SC

August, the last month of the summer, in Greenwood, is another tropical month, with average temperature fluctuating between 90.1°F (32.3°C) and 69.8°F (21°C).

Temperature

In August, the average high-temperature is almost the same as in July - a still hot 90.1°F (32.3°C). In Greenwood, in August, the average low-temperature is 69.8°F (21°C).

Heat index

In August, the average heat index is calculated to an extremely hot 107.8°F (42.1°C). Be wary - heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'felt air temperature', 'apparent temperature', or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (metabolic differences, wind, clothing), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 99.5°F (37.5°C) to 100.9°F (38.3°C), thermal conditions are potentially life-threatening.

Humidity

In Greenwood, the average relative humidity is 72%.

Rainfall

In Greenwood, during 17 rainfall days, 3.31" (84mm) of precipitation is typically accumulated. Throughout the year, there are 152.7 rainfall days, and 31.34" (796mm) of precipitation is accumulated.

Snowfall

April through December are months without snowfall in Greenwood.

Daylight

In Greenwood, the average length of the day is 13.4h.

Sunshine

In Greenwood, South Carolina, the average sunshine is 10.3h.

UV index

Months with the highest UV index are June and August, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 7 interpret into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in August in Greenwood?

In Greenwood, in August, the average high-temperature is 90.1°F (32.3°C), and the average low-temperature is 69.8°F (21°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that calculates temperature value influenced by the moisture in the air, in August is calculated to 107.8°F (42.1°C).

What is the average humidity in August in Greenwood?

In August, the average relative humidity in Greenwood, South Carolina, is 72%.

How much does it rain in Greenwood in August?

In Greenwood, South Carolina, during August, the rain falls for 17 days and regularly aggregates up to 3.31" (84mm) of precipitation.

When it does not snow in Greenwood?

In Greenwood snow does not fall in April through December.

What is the average length of the day in August in Greenwood?

In Greenwood, South Carolina, the average length of the day in August is 13.4h.

How many hours of sunshine does Greenwood have in August?

The average sunshine in August in Greenwood, South Carolina, is 10.3h.

When is the highest UV index in Greenwood?

June and August, with an average maximum UV index of 7, are months with the highest UV index in Greenwood.

How high is the UV index in August in Greenwood?

In Greenwood, the average daily maximum UV index in August is 7. A UV Index value of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV rays.
Average temperature in August - Greenwood, SC
  • Average high temperature in August: 90.1°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 (51.4°F).

  • Average low temperature in August: 69.8°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (35.1°F).

Average humidity in August - Greenwood, SC
  • Average humidity in August: 72%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).

Average rainfall in August - Greenwood, SC
  • Average rainfall in August: 3.31"

The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is September (1.57").

Average rainfall days in August - Greenwood, SC
  • Average rainfall days in August: 17 days

The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is October (8.5 days).

Average snowfall in August - Greenwood, SC
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.87").
Months with the least snowfall are April, May, June, July, August, September, October, November and December (0").

Average snowfall days in August - Greenwood, SC
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (0.7 days).
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 - Greenwood, SC
  • Average daylight in August: 13.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in August: 10.3h

The month with the most sunshine is July (Average sunshine: 10.9h).
The month with the least sunshine is December (Average sunshine: 5.3h).

Average UV index in August - Greenwood, SC
  • Average UV index in August: 7

Months with the highest UV index are June and August (UV index 7).
The month with the lowest UV index is January (UV index 2).