August weather forecast
McEwen, TN

Share

Weather in August

The last month of the summer, August, is another hot month in McEwen, Tennessee, with an average temperature fluctuating between 67.3°F (19.6°C) and 87.4°F (30.8°C).

Temperature

August's arrival brings an average high-temperature of a still hot 87.4°F (30.8°C), slightly deviating from July's 88.3°F (31.3°C). An average low-temperature of 67.3°F (19.6°C) is common during the nights of August.

Heat index

August's average heat index is computed to be a sweltering 102.2°F (39°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

The average relative humidity in August in McEwen is 76%.

Rainfall

In McEwen, in August, during 16.7 rainfall days, 3.07" (78mm) of precipitation is typically accumulated. Throughout the year, in McEwen, there are 162 rainfall days, and 32.72" (831mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In McEwen, the average length of the day in August is 13h and 29min.
On the first day of the month, sunrise is at 5:58 am and sunset at 7:55 pm. On the last day of August, sunrise is at 6:22 am and sunset at 7:19 pm CDT.

Sunshine

In August, the average sunshine is 10.2h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In August, a regular UV index of 6 translates into these guidelines:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Updated: Jul 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August in McEwen?

In McEwen, in August, the average high-temperature is 87.4°F (30.8°C), and the average low-temperature is 67.3°F (19.6°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 102.2°F (39°C).

What is the average humidity in August?

In August, the average relative humidity is 76%.

How much does it rain in August?

In McEwen, in August, it is raining for 16.7 days, with typically 3.07" (78mm) of accumulated precipitation.

When it does not snow?

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

How many hours of daylight does McEwen have in August?

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

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 5:58 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 McEwen have in August?

The average sunshine duration in August is 10.2h.

When is the highest UV index?

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

What is the UV index intensity in August?

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

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

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (43.9°F).

  • Average low temperature in August: 67.3°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

Average pressure in August
McEwen, TN

Average pressure in August - McEwen, 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 (29.96"Hg).

Average wind speed in August
McEwen, TN

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

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 (4.8mph).

Average humidity in August
McEwen, TN

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

The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (73%).

Average rainfall in August
McEwen, TN

Average rainfall in August - McEwen, TN
  • Average rainfall in August: 3.07"

The wettest month (with the highest rainfall) is July (3.58").
The driest month (with the least rainfall) is September (1.73").

Average rainfall days in August
McEwen, TN

Average rainfall days in August - McEwen, TN
  • Average rainfall days in August: 16.7 days

The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in August
McEwen, TN

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

The month with the highest snowfall is March (1.61").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
McEwen, TN

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

The month with the highest number of snowfall days is February (3.5 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
McEwen, TN

Average daylight in August / Average sunshine in August - McEwen, 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 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in August
McEwen, TN

Average sunshine days in August - McEwen, TN
  • Average sunshine days in August: 11.8 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (10 days).

Average UV index in August
McEwen, TN

Average UV index in August - McEwen, 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
McEwen, TN

Average cloud cover in August - McEwen, TN
  • Average cloud cover in August: 31

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in August
McEwen, TN

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

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

McEwen, Tennessee, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location