August weather forecast
Hartsville, TN

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Weather in August

The last month of the summer, August, is also a moderately hot month in Hartsville, Tennessee, with temperature in the range of an average high of 85.6°F (29.8°C) and an average low of 66.7°F (19.3°C).

Temperature

The onset of August notes an average high-temperature of a moderately hot 85.6°F (29.8°C), subtly shifted from July's 86.9°F (30.5°C). August witnesses an average nighttime temperature of 66.7°F (19.3°C) in Hartsville.

Heat index

The heat index value during August is estimated at a very hot 96.8°F (36°C). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', combines both the air temperature and the humidity level to give a perceived human temperature. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

In August, the average relative humidity is 77%.

Rainfall

In Hartsville, during August, the rain falls for 18.3 days and regularly aggregates up to 3.9" (99mm) of precipitation. In Hartsville, during the entire year, the rain falls for 178.1 days and collects up to 37.99" (965mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In Hartsville, the average length of the day in August is 13h and 30min.
On the first day of August, sunrise is at 5:51 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 7:13 pm CDT.

Sunshine

In Hartsville, the average sunshine in August is 10.2h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Hartsville. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: During August, 6 as the daily maximum UV index converts into the following advice:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
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Frequently asked questions

Is it hot in Hartsville during August?

The high-temperature, in August, in Hartsville, is 85.6°F (29.8°C), while the low-temperature averages to 66.7°F (19.3°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, is estimated at 96.8°F (36°C).

What is the average humidity in August in Hartsville?

In Hartsville, the average relative humidity in August is 77%.

How many days does it rain in August in Hartsville?

In Hartsville, Tennessee, in August, during 18.3 rainfall days, 3.9" (99mm) of precipitation is typically accumulated.

When it does not snow in Hartsville?

In Hartsville, Tennessee, snow does not fall in May through September.

How many hours of daylight does Hartsville have in August?

The average day length in August in Hartsville is 13h and 30min.

When are sunrise and sunset in August in Hartsville?

On the first day of August in Hartsville, sunrise is at 5:51 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 7:13 pm CDT.

How many hours of sunshine does Hartsville have in August?

In Hartsville, Tennessee, the average sunshine duration in August is 10.2h.

What is the month with the highest UV index in Hartsville?

May through August, with an average maximum UV index of 6, are months with the highest UV index in Hartsville.

What is the UV index intensity in August in Hartsville?

In August, the average daily maximum UV index in Hartsville is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from 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
Hartsville, TN

Average temperature in August - Hartsville, TN
  • Average high temperature in August: 85.6°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (43.7°F).

  • Average low temperature in August: 66.7°F

The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).

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Average pressure in August
Hartsville, TN

Average pressure in August - Hartsville, TN
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed in August
Hartsville, TN

Average wind speed in August - Hartsville, TN
  • Average wind speed in August: 4.5mph

The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

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Average humidity in August
Hartsville, TN

Average humidity in August - Hartsville, TN
  • Average humidity in August: 77%

The months with the highest relative humidity are February, March, May and December (79%).
The months with the lowest relative humidity are October and November (75%).

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Average rainfall in August
Hartsville, TN

Average rainfall in August - Hartsville, TN
  • Average rainfall in August: 3.9"

The wettest month (with the highest rainfall) is July (4.53").
The driest month (with the least rainfall) is September (2.05").

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Average rainfall days in August
Hartsville, TN

Average rainfall days in August - Hartsville, TN
  • Average rainfall days in August: 18.3 days

The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (9.7 days).

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Average snowfall in August
Hartsville, TN

Average snowfall in August - Hartsville, TN
  • Average snowfall in August: 0"

The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Hartsville, TN

Average snowfall days in August - Hartsville, TN
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (5.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Hartsville, TN

Average daylight in August / Average sunshine in August - Hartsville, TN
  • Average daylight in August: 13h and 3min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

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Average sunshine days in August
Hartsville, TN

Average sunshine days in August - Hartsville, TN
  • Average sunshine days in August: 11.4 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (9.3 days).

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Average UV index in August
Hartsville, TN

Average UV index in August - Hartsville, TN
  • Average UV index in August: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in August
Hartsville, TN

Average cloud cover in August - Hartsville, TN
  • Average cloud cover in August: 32

The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 31).

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Average visibility in August
Hartsville, TN

Average visibility in August - Hartsville, TN
  • Average visibility in August: 5mi

The months with the highest visibility are February, April, June, September, October, November and December (6mi).
The months with the lowest visibility are January, March, May, July and August (5mi).

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Hartsville, Tennessee, USA

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