August weather forecast
Summitville, TN

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Weather in August

The last month of the summer, August, is another warm month in Summitville, Tennessee, with an average temperature ranging between min 66.2°F (19°C) and max 85.6°F (29.8°C).

Temperature

The shift into August finds Summitville at an average high-temperature of a warm 85.6°F (29.8°C), closely comparable to July's conditions. Summitville records a steady low-temperature average of 66.2°F (19°C) during August.

Heat index

For most parts of August, the heat index is computed to be a very hot 96.8°F (36°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
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 impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values hold great significance to children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

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

Rainfall

In Summitville, in August, during 18.7 rainfall days, 3.98" (101mm) of precipitation is typically accumulated. Throughout the year, in Summitville, there are 183 rainfall days, and 43.19" (1097mm) of precipitation is accumulated.

Snowfall

In Summitville, snow does not fall in May through October.

Daylight

The average length of the day in August in Summitville, Tennessee, is 13h and 28min.
On the first day of August, sunrise is at 5:52 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 7:12 pm CDT.

Sunshine

In Summitville, the average sunshine in August is 10h.

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 threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: In August, the maximum UV index of 6 translates into these guidelines:
Take precautions against overexposure. Protection against sun damage is needed. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Boost your sun resistance with garments that are densely woven yet spacious.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Summitville in August?

The high-temperature during August is 85.6°F (29.8°C) and the low-temperature is 66.2°F (19°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is computed to be 96.8°F (36°C).

What is the average humidity in August in Summitville?

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

How many days does it rain in August in Summitville?

In Summitville, Tennessee, in August, during 18.7 rainfall days, 3.98" (101mm) of precipitation is typically accumulated.

When it does not snow in Summitville?

May through October are months without snowfall in Summitville.

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

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

When is the sunrise / sunset in August in Summitville?

In August, on the first day of the month, sunrise is at 5:52 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 7:12 pm CDT.

How long on average sun shines in August in Summitville?

In August, the average sunshine duration is 10h.

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

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 Summitville?

In August, the average daily maximum UV index in Summitville, Tennessee, is 6. A UV Index reading 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
Summitville, TN

Average temperature in August - Summitville, TN
  • Average high temperature in August: 85.6°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in August: 66.2°F

The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).

Average pressure in August
Summitville, TN

Average pressure in August - Summitville, TN
  • Average pressure in August: 30"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in August
Summitville, TN

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

The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).

Average humidity in August
Summitville, TN

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

The months with the highest relative humidity are March and December (80%).
The months with the lowest relative humidity are October and November (75%).

Average rainfall in August
Summitville, TN

Average rainfall in August - Summitville, TN
  • Average rainfall in August: 3.98"

The wettest month (with the highest rainfall) is July (4.72").
The driest month (with the least rainfall) is September (2.28").

Average rainfall days in August
Summitville, TN

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

The month with the highest number of rainy days is July (21 days).
The month with the least rainy days is November (10.3 days).

Average snowfall in August
Summitville, TN

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

The month with the highest snowfall is February (1.34").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Summitville, TN

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

The month with the highest number of snowfall days is January (5.2 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
Summitville, TN

Average daylight in August / Average sunshine in August - Summitville, 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 0min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

Average sunshine days in August
Summitville, TN

Average sunshine days in August - Summitville, TN
  • Average sunshine days in August: 11 days

The month with the most sunshine days is October (17.8 days).
The month with the least sunshine days is July (8.1 days).

Average UV index in August
Summitville, TN

Average UV index in August - Summitville, 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
Summitville, TN

Average cloud cover in August - Summitville, TN
  • Average cloud cover in August: 33

The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 31).

Average visibility in August
Summitville, TN

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

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

Summitville, Tennessee, USA

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