August weather forecast
Only, TN

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Weather in August

August, the last month of the summer in Only, is another hot month, with an average temperature fluctuating between 67.1°F (19.5°C) and 87.1°F (30.6°C).

Temperature

August reports an average high-temperature of a still tropical 87.1°F (30.6°C), slightly varied from July's 87.6°F (30.9°C). Only, during August, witnesses an average low-temperature of 67.1°F (19.5°C).

Heat index

August's average heat index is evaluated at a torrid 102.2°F (39°C). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a single figure representing how weather conditions feel when combining temperature and humidity. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

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

Rainfall

In Only, during August, the rain falls for 18.7 days and regularly aggregates up to 3.58" (91mm) of precipitation. In Only, during the entire year, the rain falls for 178.7 days and collects up to 39.21" (996mm) of precipitation.

Snowfall

In Only, snow does not fall in May through September.

Daylight

In Only, the average length of the day in August is 13h and 29min.
On the first day of the month, sunrise is at 5:59 am and sunset at 7:55 pm. On the last day of August, in Only, sunrise is at 6:22 am and sunset at 7:19 pm CDT.

Sunshine

In August, the average sunshine in Only is 10.1h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. 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: The UV index of 6 during August translates into the following guidance:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. 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: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in Only in August?

In August, in Only, the average high-temperature is 87.1°F (30.6°C), and the average low-temperature is 67.1°F (19.5°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 102.2°F (39°C).

What is the average humidity in August in Only?

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

How many days does it rain in August in Only?

In August, in Only, the rain falls for 18.7 days. Throughout August, 3.58" (91mm) of precipitation is accumulated.

When it does not snow in Only?

In Only, snow does not fall in May through September.

What is the average length of the day in August in Only?

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

When are sunrise and sunset in August in Only?

On the first day of August in Only, sunrise is at 5:59 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 7:19 pm CDT.

How many hours of sunshine does Only have in August?

In August, the average sunshine duration is 10.1h.

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

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

How high is the UV index in August in Only?

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to Sun's UV rays.
Average max. wind speed
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
Only, TN

Average temperature in August - Only, TN
  • Average high temperature in August: 87.1°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 (45°F).

  • Average low temperature in August: 67.1°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).

Average pressure in August
Only, TN

Average pressure in August - Only, 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).

Average wind speed in August
Only, TN

Average wind speed in August - Only, TN
  • Average wind speed in August: 4.7mph

The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

Average humidity in August
Only, TN

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

The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (74%).

Average rainfall in August
Only, TN

Average rainfall in August - Only, TN
  • Average rainfall in August: 3.58"

The wettest month (with the highest rainfall) is July (4.21").
The driest month (with the least rainfall) is September (2.44").

Average rainfall days in August
Only, TN

Average rainfall days in August - Only, TN
  • Average rainfall days in August: 18.7 days

The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is November (10.5 days).

Average snowfall in August
Only, TN

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

The month with the highest snowfall is January (0.98").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Only, TN

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

The month with the highest number of snowfall days is February (4 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
Only, TN

Average daylight in August / Average sunshine in August - Only, 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: 10h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).

Average sunshine days in August
Only, TN

Average sunshine days in August - Only, TN
  • Average sunshine days in August: 10.3 days

The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is July (8.8 days).

Average UV index in August
Only, TN

Average UV index in August - Only, 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
Only, TN

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

The months with the most cloud cover are February and December (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in August
Only, TN

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

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

Only, Tennessee, USA

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