August weather forecast
Deason, TN

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Weather in August

The last month of the summer, August, is another tropical month in Deason, Tennessee, with an average temperature fluctuating between 86.5°F (30.3°C) and 67.1°F (19.5°C).

Temperature

An average high-temperature of a still tropical 86.5°F (30.3°C) marks August, exhibiting a close resemblance to the conditions in July. An average low-temperature of 67.1°F (19.5°C) is expected during August.

Heat index

The average heat index in August is computed to be a sweltering 100.4°F (38°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

The average relative humidity in August is 77%.

Rainfall

In August, the rain falls for 17.3 days. Throughout August, 3.78" (96mm) of precipitation is accumulated. In Deason, Tennessee, during the entire year, the rain falls for 167.2 days and collects up to 38.78" (985mm) of precipitation.

Snowfall

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

Daylight

In Deason, the average length of the day in August is 13h and 28min.
On the first day of August in Deason, sunrise is at 5:54 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 7:13 pm CDT.

Sunshine

The average sunshine in August is 9.9h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: A maximum UV index of 6 in August translates into the following recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Updated: Aug 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during August?

In Deason, 86.5°F (30.3°C) is the average high-temperature and 67.1°F (19.5°C) is the average low-temperature during August. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 100.4°F (38°C).

What is the average humidity in August?

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

How many days does it rain in August?

In Deason, in August, during 17.3 rainfall days, 3.78" (96mm) of precipitation is typically accumulated.

When it does not snow?

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

What is the average length of the day in August?

In August, the average day length is 13h and 28min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 5:54 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 7:13 pm CDT.

How many hours of sunshine does Deason have in August?

The average sunshine duration in August is 9.9h.

What are the months with the highest UV index?

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

How high is the UV index in August?

In August, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk 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
Deason, TN

Average temperature in August - Deason, TN
  • Average high temperature in August: 86.5°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (45.5°F).

  • Average low temperature in August: 67.1°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).

Average pressure in August
Deason, TN

Average pressure in August - Deason, 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 (29.97"Hg).

Average wind speed in August
Deason, TN

Average wind speed in August - Deason, TN
  • Average wind speed in August: 4.8mph

The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

Average humidity in August
Deason, TN

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

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (74%).

Average rainfall in August
Deason, TN

Average rainfall in August - Deason, TN
  • Average rainfall in August: 3.78"

The wettest month (with the highest rainfall) is February (4.33").
The driest month (with the least rainfall) is September (2.09").

Average rainfall days in August
Deason, TN

Average rainfall days in August - Deason, TN
  • Average rainfall days in August: 17.3 days

The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is November (8.9 days).

Average snowfall in August
Deason, TN

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

The month with the highest snowfall is February (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Deason, TN

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

The month with the highest number of snowfall days is January (3.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

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

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 5min

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

Average sunshine days in August
Deason, TN

Average sunshine days in August - Deason, TN
  • Average sunshine days in August: 12.1 days

The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is July (10.1 days).

Average UV index in August
Deason, TN

Average UV index in August - Deason, 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 and December (UV index 2).

Average cloud cover in August
Deason, TN

Average cloud cover in August - Deason, TN
  • Average cloud cover in August: 33

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 31).

Average visibility in August
Deason, TN

Average visibility in August - Deason, TN
  • Average visibility in August: 6mi

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

Deason, Tennessee, USA

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