August weather forecast
Dean, TN

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Weather in August

The last month of the summer, August, is also a moderately hot month in Dean, Tennessee, with an average temperature varying between 84.9°F (29.4°C) and 61.9°F (16.6°C).

Temperature

August's onset records a minor alteration in the average high-temperature to a moderately hot 84.9°F (29.4°C) from July's 86°F (30°C). Against the high August temperatures, Dean records an average drop to an enjoyable 61.9°F (16.6°C) at night.

Heat index

The heat index value for August is evaluated at a sweltering 95°F (35°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
For clarity, heat index numbers account for light winds and areas under shade. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values hold particular importance for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

With an average relative humidity of 76%, August is the least humid month.

Rainfall

In Dean, in August, during 16.2 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. In Dean, during the entire year, the rain falls for 167 days and collects up to 33.62" (854mm) of precipitation.

Snowfall

In Dean, snow does not fall in May through October.

Daylight

In August, the average length of the day is 13h and 30min.
On the first day of the month, sunrise is at 6:44 am and sunset at 8:42 pm. On the last day of August, sunrise is at 7:08 am and sunset at 8:06 pm EDT.

Sunshine

In Dean, the average sunshine in August is 9.6h.

UV index

The months with the highest UV index in Dean are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In August, a daily maximum UV index of 6 leads to the following instructions:
Resist extreme sun exposure. Guarding against solar damage is essential. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
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Frequently asked questions

How hot does it get in Dean in August?

In August, the average high-temperature and low-temperature are 84.9°F (29.4°C) and 61.9°F (16.6°C) respectively. In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 95°F (35°C).

What is the least humid month in Dean?

With an average relative humidity of 76%, August is the least humid month in Dean.

What is the average humidity in August in Dean?

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

How many days does it rain in August in Dean?

In Dean, Tennessee, in August, it is raining for 16.2 days, with typically 2.64" (67mm) of accumulated precipitation.

When it does not snow in Dean?

May through October are months without snowfall in Dean.

How many hours of daylight does Dean have in August?

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

What time are sunrise and sunset in August in Dean?

In August, on the first day of the month, sunrise is at 6:44 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 8:06 pm EDT.

How long on average sun shines in August in Dean?

In August, the average sunshine duration in Dean is 9.6h.

When is the highest UV index in Dean?

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

What is the UV index intensity in August in Dean?

The average daily maximum UV index in August in Dean, Tennessee, is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's 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
Dean, TN

Average temperature in August - Dean, TN
  • Average high temperature in August: 84.9°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (42.3°F).

  • Average low temperature in August: 61.9°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

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Average pressure in August
Dean, TN

Average pressure in August - Dean, 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
Dean, TN

Average wind speed in August - Dean, TN
  • Average wind speed in August: 3.5mph

The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).

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Average humidity in August
Dean, TN

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

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (76%).

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Average rainfall in August
Dean, TN

Average rainfall in August - Dean, TN
  • Average rainfall in August: 2.64"

The wettest month (with the highest rainfall) is February (3.94").
The driest month (with the least rainfall) is September (1.89").

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Average rainfall days in August
Dean, TN

Average rainfall days in August - Dean, TN
  • Average rainfall days in August: 16.2 days

The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (9.4 days).

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Average snowfall in August
Dean, TN

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

The month with the highest snowfall is February (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Dean, TN

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

The month with the highest number of snowfall days is January (5.5 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
Dean, TN

Average daylight in August / Average sunshine in August - Dean, 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: 9h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

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Average sunshine days in August
Dean, TN

Average sunshine days in August - Dean, TN
  • Average sunshine days in August: 13.2 days

The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is July (10.1 days).

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Average UV index in August
Dean, TN

Average UV index in August - Dean, 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
Dean, TN

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

The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are June and August (Cloud cover 32).

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Average visibility in August
Dean, TN

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

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

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Dean, Tennessee, USA

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