August weather forecast
Jamestown, SC

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Weather in August

August, the last month of the summer in Jamestown, is also a hot month, with an average temperature fluctuating between 88.7°F (31.5°C) and 74.5°F (23.6°C).

Temperature

With the arrival of August, Jamestown's average high-temperature registers at a still hot 88.7°F (31.5°C), indicating a subtle variation from the previous month. Throughout the month of August, Jamestown sees a steady low-temperature average of 74.5°F (23.6°C).

Heat index

Throughout August, the heat index is evaluated at a blistering 107.6°F (42°C). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

August and December, with an average relative humidity of 78%, are the most humid months.

Rainfall

August is the month with the most rainfall. Rain falls for 23.2 days and accumulates 6.46" (164mm) of precipitation.

Snowfall

In Jamestown, South Carolina, snow does not fall in March through November.

Daylight

In Jamestown, the average length of the day in August is 13h and 21min.
On the first day of August, sunrise is at 6:32 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 7:44 pm EDT.

Sunshine

In Jamestown, the average sunshine in August is 10.6h.

UV index

In August, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: A maximum high daily UV index of 6 during August translates into the following directions:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Frequently asked questions

How hot is August in Jamestown?

Jamestown in August has an average high-temperature of 88.7°F (31.5°C) and an average low-temperature of 74.5°F (23.6°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 107.6°F (42°C).

What is the most humid month in Jamestown?

August and December, with an average relative humidity of 78%, are most humid months in Jamestown, South Carolina.

What is the average humidity in August in Jamestown?

In Jamestown, the average relative humidity in August is 78%.

What is the rainiest month in Jamestown?

The month with the most rainfall in Jamestown, South Carolina, is August, when the rain falls for 23.2 days and typically aggregates up to 6.46" (164mm) of precipitation.

How many days does it rain in August in Jamestown?

In Jamestown, South Carolina, during August, the rain falls for 23.2 days and regularly aggregates up to 6.46" (164mm) of precipitation.

When it does not snow in Jamestown?

In Jamestown, snow does not fall in March through November.

How many hours of daylight does Jamestown have in August?

In August, the average day length in Jamestown, South Carolina, is 13h and 21min.

What time are sunrise and sunset in August in Jamestown?

In August, on the first day of the month, sunrise is at 6:32 am and sunset at 8:17 pm. On the last day of the month, in Jamestown, sunrise is at 6:52 am and sunset at 7:44 pm EDT.

How many hours of sunshine does Jamestown have in August?

In August, the average sunshine duration in Jamestown, South Carolina, is 10.6h.

What is the UV index reading in August in Jamestown?

In August, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Jamestown, SC

Average temperature in August - Jamestown, SC
  • Average high temperature in August: 88.7°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (55.8°F).

  • Average low temperature in August: 74.5°F

The month with the highest average low temperature is July (74.8°F).
The coldest month (with the lowest average low temperature) is January (40.8°F).

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Average pressure in August
Jamestown, SC

Average pressure in August - Jamestown, 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).

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Average wind speed in August
Jamestown, SC

Average wind speed in August - Jamestown, SC
  • Average wind speed in August: 5.7mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in August
Jamestown, SC

Average humidity in August - Jamestown, SC
  • Average humidity in August: 78%

The months with the highest relative humidity are August and December (78%).
The months with the lowest relative humidity are January and March (74%).

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Average rainfall in August
Jamestown, SC

Average rainfall in August - Jamestown, SC
  • Average rainfall in August: 6.46"

The wettest month (with the highest rainfall) is August (6.46").
The driest month (with the least rainfall) is January (1.46").

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Average rainfall days in August
Jamestown, SC

Average rainfall days in August - Jamestown, SC
  • Average rainfall days in August: 23.2 days

The months with the highest number of rainy days are July and August (23.2 days).
The month with the least rainy days is November (8.9 days).

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Average snowfall in August
Jamestown, SC

Average snowfall in August - Jamestown, 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 and November (0").

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Average snowfall days in August
Jamestown, SC

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

The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average daylight in August /
Average sunshine in August
Jamestown, SC

Average daylight in August / Average sunshine in August - Jamestown, 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 4min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

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Average sunshine days in August
Jamestown, SC

Average sunshine days in August - Jamestown, SC
  • Average sunshine days in August: 5.7 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is July (5.5 days).

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Average UV index in August
Jamestown, SC

Average UV index in August - Jamestown, 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).

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Average cloud cover in August
Jamestown, SC

Average cloud cover in August - Jamestown, SC
  • Average cloud cover in August: 29

The months with the most cloud cover are February and December (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 26).

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Average visibility in August
Jamestown, SC

Average visibility in August - Jamestown, 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).

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Jamestown, South Carolina, USA

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