August weather forecast
Selmer, TN

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Weather in August

August, the last month of the summer in Selmer, is another hot month, with an average temperature ranging between min 69.1°F (20.6°C) and max 88.5°F (31.4°C).

Temperature

Selmer transitions into August recording an average high-temperature of a still hot 88.5°F (31.4°C), closely aligning with the preceding month's temperature. Selmer experiences a consistent average temperature of 69.1°F (20.6°C) throughout the nights in August.

Heat index

In August, the heat index is estimated at a blisteringly hot 104°F (40°C). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are essentially critical 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.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

The average relative humidity in August is 75%.

Rainfall

In Selmer, during August, the rain falls for 16.8 days and regularly aggregates up to 3.43" (87mm) of precipitation. In Selmer, during the entire year, the rain falls for 168.2 days and collects up to 38.94" (989mm) of precipitation.

Snowfall

In Selmer, snow does not fall in April through October.

Daylight

In Selmer, the average length of the day in August is 13h and 26min.
On the first day of August, sunrise is at 6:04 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 7:22 pm CDT.

Sunshine

In Selmer, the average sunshine in August is 10.4h.

UV index

In August, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.
Note: A daily high UV index of 6 in August leads to these guidelines:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

The high-temperature in Selmer during August is 88.5°F (31.4°C) and the low-temperature is 69.1°F (20.6°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is estimated at 104°F (40°C).

What is the average humidity in August?

The average relative humidity in August is 75%.

How many days does it rain in August?

In Selmer, in August, it is raining for 16.8 days, with typically 3.43" (87mm) of accumulated precipitation.

When it does not snow?

April through October are months without snowfall.

How many hours of daylight does Selmer have in August?

In August, the average day length in Selmer is 13h and 26min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:04 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 7:22 pm CDT.

How many hours of sunshine does Selmer have in August?

In August, the average sunshine duration is 10.4h.

What is the UV index reading in August?

In August, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes 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
Selmer, TN

Average temperature in August - Selmer, TN
  • Average high temperature in August: 88.5°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (46.9°F).

  • Average low temperature in August: 69.1°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).

Average pressure in August
Selmer, TN

Average pressure in August - Selmer, TN
  • Average pressure in August: 29.98"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
Selmer, TN

Average wind speed in August - Selmer, TN
  • Average wind speed in August: 4.9mph

The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).

Average humidity in August
Selmer, TN

Average humidity in August - Selmer, TN
  • Average humidity in August: 75%

The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (72%).

Average rainfall in August
Selmer, TN

Average rainfall in August - Selmer, TN
  • Average rainfall in August: 3.43"

The wettest month (with the highest rainfall) is February (4.72").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in August
Selmer, TN

Average rainfall days in August - Selmer, 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 (10.6 days).

Average snowfall in August
Selmer, TN

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

The month with the highest snowfall is February (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Selmer, TN

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

The months with the highest number of snowfall days are January and February (2.1 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Selmer, TN
  • Average daylight in August: 13h and 2min

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: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in August
Selmer, TN

Average sunshine days in August - Selmer, TN
  • Average sunshine days in August: 12.5 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in August
Selmer, TN

Average UV index in August - Selmer, TN
  • Average UV index in August: 6

The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in August
Selmer, TN

Average cloud cover in August - Selmer, TN
  • Average cloud cover in August: 29

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 28).

Average visibility in August
Selmer, TN

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

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

Selmer, Tennessee, USA

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