August weather forecast
Postoak, TN

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Weather in August

The last month of the summer, August, is another warm month in Postoak, Tennessee, with an average temperature fluctuating between 85.5°F (29.7°C) and 63.9°F (17.7°C).

Temperature

The shift from July to August is characterized by an average high-temperature of a warm 85.5°F (29.7°C), not significantly different from the 86.4°F (30.2°C) of July. Postoak witnesses a consistent, sharp contrast from the daytime highs, with an average low-temperature of 63.9°F (17.7°C) throughout August.

Heat index

The average heat index in August is evaluated at a torrid 96.8°F (36°C). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is found by incorporating humidity levels into the air temperature measurement. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

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

Rainfall

In Postoak, during August, the rain falls for 18 days and regularly aggregates up to 3.31" (84mm) of precipitation. Throughout the year, there are 176.6 rainfall days, and 39.41" (1001mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In August, the average length of the day is 13h and 29min.
On the first day of the month, sunrise is at 6:46 am and sunset at 8:42 pm. On the last day of August, sunrise is at 7:10 am and sunset at 8:06 pm EDT.

Sunshine

In Postoak, the average sunshine in August is 9.5h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In August, the UV index of 6 transforms into the following advice:
Guard against overexposure. Protection from sun-induced harm is essential. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
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Frequently asked questions

Is it hot in Postoak during August?

Postoak in August has an average high-temperature of 85.5°F (29.7°C) and an average low-temperature of 63.9°F (17.7°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 96.8°F (36°C).

What is the average humidity in August in Postoak?

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

How much does it rain in Postoak in August?

In Postoak, Tennessee, during August, the rain falls for 18 days and regularly aggregates up to 3.31" (84mm) of precipitation.

When it does not snow in Postoak?

May through October are months without snowfall.

How many hours of daylight does Postoak have in August?

In Postoak, the average day length in August is 13h and 29min.

When is the sunrise / sunset in August in Postoak?

On the first day of August in Postoak, sunrise is at 6:46 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 8:06 pm EDT.

How long on average sun shines in August in Postoak?

The average sunshine duration in August is 9.5h.

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

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

What is the UV index intensity in August in Postoak?

The average daily maximum UV index in August in Postoak is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to UV radiation.
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
Postoak, TN

Average temperature in August - Postoak, TN
  • Average high temperature in August: 85.5°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (43.7°F).

  • Average low temperature in August: 63.9°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).

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Average pressure in August
Postoak, TN

Average pressure in August - Postoak, TN
  • Average pressure in August: 30.01"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in August
Postoak, TN

Average wind speed in August - Postoak, TN
  • Average wind speed in August: 3.8mph

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

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Average humidity in August
Postoak, TN

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

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is November (76%).

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Average rainfall in August
Postoak, TN

Average rainfall in August - Postoak, TN
  • Average rainfall in August: 3.31"

The wettest month (with the highest rainfall) is July (4.29").
The driest month (with the least rainfall) is September (2.32").

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Average rainfall days in August
Postoak, TN

Average rainfall days in August - Postoak, TN
  • Average rainfall days in August: 18 days

The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (10.7 days).

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Average snowfall in August
Postoak, TN

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

The month with the highest snowfall is February (1.18").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Postoak, TN

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

The months with the highest number of snowfall days are January and February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in August / Average sunshine in August - Postoak, 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 48min).

  • Average sunshine in August: 9h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are January and December (Average sunshine: 4h and 54min).

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Average sunshine days in August
Postoak, TN

Average sunshine days in August - Postoak, TN
  • Average sunshine days in August: 10.9 days

The months with the most sunshine days are October and November (18.5 days).
The month with the least sunshine days is July (9.4 days).

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Average UV index in August
Postoak, TN

Average UV index in August - Postoak, 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
Postoak, TN

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

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 31).

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Average visibility in August
Postoak, TN

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

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

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Postoak, Tennessee, USA

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