August weather forecast
Old Washington, TN

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Weather in August

The last month of the summer, August, is another hot month in Old Washington, Tennessee, with an average temperature ranging between min 64.6°F (18.1°C) and max 86.5°F (30.3°C).

Temperature

The arrival of August brings an average high-temperature of a still hot 86.5°F (30.3°C), closely following the temperature pattern of July. Old Washington documents a significant temperature variance in August, with the mean nighttime lows settling at an enjoyable 64.6°F (18.1°C).

Heat index

August's heat index is computed to be a very hot 98.6°F (37°C). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', reflects the feeling of heat when considering both air temperature and humidity. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

January, June through November, with an average relative humidity of 76%, are the least humid months.

Rainfall

In Old Washington, in August, during 16.8 rainfall days, 3.27" (83mm) of precipitation is typically accumulated. Throughout the year, in Old Washington, there are 163.6 rainfall days, and 37.44" (951mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In August, the average length of the day is 13h and 28min.
On the first day of August, sunrise is at 6:48 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 8:07 pm EDT.

Sunshine

The average sunshine in August is 9.3h.

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 threat to health from exposure to the Sun's UV rays for the average person.
Note: A maximum UV index of 6 in August translates into the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Enhance your sun protection with tightly woven, yet airy clothing.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during August?

The high-temperature, in August, in Old Washington, is 86.5°F (30.3°C), while the low-temperature averages to 64.6°F (18.1°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is computed to be 98.6°F (37°C).

What is the least humid month?

The months with the lowest humidity are January, June through November, with an average relative humidity of 76%.

What is the average humidity in August?

The average relative humidity in August is 76%.

How many days does it rain in August?

In Old Washington, during August, the rain falls for 16.8 days and regularly aggregates up to 3.27" (83mm) of precipitation.

When it does not snow?

May through October are months without snowfall.

What is the average length of the day in August?

The average day length in August is 13h and 28min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:48 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 8:07 pm EDT.

How many hours of sunshine does Old Washington have in August?

In Old Washington, the average sunshine duration in August is 9.3h.

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.

What is the UV index reading in August?

The average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health threat 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
Old Washington, TN

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

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in August: 64.6°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

Average pressure in August
Old Washington, TN

Average pressure in August - Old Washington, TN
  • Average pressure in August: 30"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).

Average wind speed in August
Old Washington, TN

Average wind speed in August - Old Washington, TN
  • Average wind speed in August: 4mph

The windiest months (with the highest average wind speed) are February and April (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (4mph).

Average humidity in August
Old Washington, TN

Average humidity in August - Old Washington, TN
  • Average humidity in August: 76%

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are January, June, July, August, September, October and November (76%).

Average rainfall in August
Old Washington, TN

Average rainfall in August - Old Washington, TN
  • Average rainfall in August: 3.27"

The wettest month (with the highest rainfall) is July (3.94").
The driest month (with the least rainfall) is November (2.28").

Average rainfall days in August
Old Washington, TN

Average rainfall days in August - Old Washington, TN
  • Average rainfall days in August: 16.8 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is November (8.8 days).

Average snowfall in August
Old Washington, TN

Average snowfall in August - Old Washington, TN
  • Average snowfall in August: 0"

The month with the highest snowfall is January (0.67").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Old Washington, TN

Average snowfall days in August - Old Washington, TN
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Old Washington, TN

Average daylight in August / Average sunshine in August - Old Washington, 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 2min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days in August
Old Washington, TN

Average sunshine days in August - Old Washington, TN
  • Average sunshine days in August: 12.6 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (10.8 days).

Average UV index in August
Old Washington, TN

Average UV index in August - Old Washington, 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).

Average cloud cover in August
Old Washington, TN

Average cloud cover in August - Old Washington, TN
  • Average cloud cover in August: 34

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 32).

Average visibility in August
Old Washington, TN

Average visibility in August - Old Washington, TN
  • Average visibility in August: 5mi

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

Old Washington, Tennessee, USA

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