August weather forecast
Isom, TN

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Weather in August

August, the last month of the summer in Isom, is another tropical month, with an average temperature ranging between max 87.1°F (30.6°C) and min 67.1°F (19.5°C).

Temperature

Isom marks the onset of August with an average high-temperature of a still hot 87.1°F (30.6°C), subtly divergent from July's 87.6°F (30.9°C). Isom's nighttime temperature in August drops to an average of 67.1°F (19.5°C).

Heat index

August's heat index is appraised at a fiery hot 102.2°F (39°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Realize that the values for the heat index are set for shaded places and light winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

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

Rainfall

In Isom, in August, during 18.7 rainfall days, 3.58" (91mm) of precipitation is typically accumulated. In Isom, during the entire year, the rain falls for 178.7 days and collects up to 39.21" (996mm) of precipitation.

Snowfall

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

Daylight

In August, the average length of the day in Isom is 13h and 28min.
On the first day of the month, sunrise is at 5:57 am and sunset at 7:53 pm. On the last day of August, sunrise is at 6:21 am and sunset at 7:17 pm CDT.

Sunshine

The average sunshine in August is 10.1h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In August, the average maximum UV index of 6 translates into the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August in Isom?

August temperatures in Isom vary between a high-temperature of 87.1°F (30.6°C) and a low-temperature of 67.1°F (19.5°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 102.2°F (39°C).

What is the average humidity in August in Isom?

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

How much does it rain in Isom in August?

In Isom, Tennessee, in August, during 18.7 rainfall days, 3.58" (91mm) of precipitation is typically accumulated.

When it does not snow in Isom?

In Isom, Tennessee, snow does not fall in May through September.

How many hours of daylight does Isom have in August?

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

What time are sunrise and sunset in August in Isom?

On the first day of August, sunrise is at 5:57 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 7:17 pm CDT.

How many hours of sunshine does Isom have in August?

In August, the average sunshine duration in Isom is 10.1h.

What are the months with the highest UV index in Isom?

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

What is the UV index reading in August in Isom?

The average daily maximum UV index in August in Isom, Tennessee, is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.
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
Isom, TN

Average temperature in August - Isom, 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
Isom, TN

Average pressure in August - Isom, 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
Isom, TN

Average wind speed in August - Isom, 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
Isom, TN

Average humidity in August - Isom, 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
Isom, TN

Average rainfall in August - Isom, 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
Isom, TN

Average rainfall days in August - Isom, 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
Isom, TN

Average snowfall in August - Isom, 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
Isom, TN

Average snowfall days in August - Isom, 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
Isom, TN

Average daylight in August / Average sunshine in August - Isom, 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: 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
Isom, TN

Average sunshine days in August - Isom, 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
Isom, TN

Average UV index in August - Isom, 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
Isom, TN

Average cloud cover in August - Isom, 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
Isom, TN

Average visibility in August - Isom, 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).

Isom, Tennessee, USA

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