August weather forecast
Knollwood, TN

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Weather in August

The last month of the summer, August, is another tropical month in Knollwood, Tennessee, with an average temperature ranging between max 87.4°F (30.8°C) and min 65.8°F (18.8°C).

Temperature

The shift to August signals an average high-temperature of a still tropical 87.4°F (30.8°C), subtly varied from July's 87.6°F (30.9°C). Despite high daytime temperatures, the average temperature lowers to an enjoyable 65.8°F (18.8°C) during August nights.

Heat index

August's average heat index is calculated to be a sweltering 102.2°F (39°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is achieved by amalgamating air temperature with the relative humidity readings. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

In August, the average relative humidity in Knollwood is 76%.

Rainfall

In Knollwood, in August, during 9.9 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. Throughout the year, in Knollwood, there are 104.5 rainfall days, and 10.98" (279mm) of precipitation is accumulated.

Snowfall

In Knollwood, snow does not fall in April through November.

Daylight

The average length of the day in August is 13h and 26min.
On the first day of August, sunrise is at 6:50 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 8:08 pm EDT.

Sunshine

In August, the average sunshine is 9.5h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 6 during August morphs into the following directions:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
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Frequently asked questions

Is it hot in Knollwood during August?

Knollwood in August has an average high-temperature of 87.4°F (30.8°C) and an average low-temperature of 65.8°F (18.8°C). The average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, in August is calculated to be 102.2°F (39°C).

What is the average humidity in August in Knollwood?

In August, the average relative humidity in Knollwood, Tennessee, is 76%.

How much does it rain in Knollwood in August?

In Knollwood, during August, the rain falls for 9.9 days and regularly aggregates up to 1.06" (27mm) of precipitation.

When it does not snow in Knollwood?

April through November are months without snowfall in Knollwood, Tennessee.

How many hours of daylight does Knollwood have in August?

In Knollwood, Tennessee, the average day length in August is 13h and 26min.

When is the sunrise / sunset in August in Knollwood?

On the first day of August, sunrise is at 6:50 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 8:08 pm EDT.

How long on average sun shines in August in Knollwood?

In Knollwood, the average sunshine duration in August is 9.5h.

When is the highest UV index in Knollwood?

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

What is the UV index intensity in August in Knollwood?

In August, the average daily maximum UV index in Knollwood is 6. A UV Index 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
Knollwood, TN

Average temperature in August - Knollwood, TN
  • Average high temperature in August: 87.4°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (46°F).

  • Average low temperature in August: 65.8°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).

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Average pressure in August
Knollwood, TN

Average pressure in August - Knollwood, TN
  • Average pressure in August: 30"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in August
Knollwood, TN

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

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

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Average humidity in August
Knollwood, TN

Average humidity in August - Knollwood, TN
  • Average humidity in August: 76%

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, October and November (75%).

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Average rainfall in August
Knollwood, TN

Average rainfall in August - Knollwood, TN
  • Average rainfall in August: 1.06"

The wettest months (with the highest rainfall) are February and December (1.18").
The driest month (with the least rainfall) is September (0.43").

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Average rainfall days in August
Knollwood, TN

Average rainfall days in August - Knollwood, TN
  • Average rainfall days in August: 9.9 days

The month with the highest number of rainy days is July (11.7 days).
The month with the least rainy days is October (6.1 days).

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Average snowfall in August
Knollwood, TN

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

The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in August
Knollwood, TN

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

The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in August / Average sunshine in August - Knollwood, TN
  • Average daylight in August: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 30min).
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 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in August
Knollwood, TN

Average sunshine days in August - Knollwood, TN
  • Average sunshine days in August: 19.2 days

The month with the most sunshine days is October (23.6 days).
The month with the least sunshine days is July (16.8 days).

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Average UV index in August
Knollwood, TN

Average UV index in August - Knollwood, 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
Knollwood, TN

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

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in August
Knollwood, TN

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

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

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Knollwood, Tennessee, USA

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