August weather forecast
River Hills, TN

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Weather in August

August, the last month of the summer in River Hills, is another hot month, with an average temperature ranging between max 30.8°C (87.4°F) and min 18.8°C (65.8°F).

Temperature

As July transitions into August, the average high-temperature rests at a still hot 30.8°C (87.4°F), maintaining a close resemblance to the previous month. River Hills records a significant temperature drop in August nights, lowering to an average of 18.8°C (65.8°F).

Heat index

The heat index value during August is computed to be a sweltering 39°C (102.2°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In August, the average relative humidity is 76%.

Rainfall

In River Hills, in August, during 9.9 rainfall days, 27mm (1.06") of precipitation is typically accumulated. In River Hills, during the entire year, the rain falls for 104.5 days and collects up to 279mm (10.98") of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

The average length of the day in August is 13h and 26min.
On the first day of the month, sunrise is at 6:50 am and sunset at 8:43 pm. On the last day of August, sunrise is at 7:13 am and sunset at 8:08 pm EDT.

Sunshine

In River Hills, the average sunshine in August is 9.5h.

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 health risk from exposure to the Sun's UV rays for the ordinary person.
Note: An average UV index of 6 in August transforms into this advice:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during August?

During August, River Hills experiences an average high-temperature of 30.8°C (87.4°F) and a low-temperature of 18.8°C (65.8°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in August is computed to be 39°C (102.2°F).

What is the average humidity in August?

In August, the average relative humidity is 76%.

How many days does it rain in August?

In River Hills, in August, during 9.9 rainfall days, 27mm (1.06") of precipitation is typically accumulated.

When it does not snow?

In River Hills, snow does not fall in April through November.

How many hours of daylight does River Hills have in August?

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

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:50 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 8:08 pm EDT.

How many hours of sunshine does River Hills have in August?

In August, the average sunshine duration is 9.5h.

What are the months with 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 reading in August?

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.
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
River Hills, TN

Average temperature in August - River Hills, TN
  • Average high temperature in August: 30.8°C

The warmest month (with the highest average high temperature) is July (30.9°C).
The month with the lowest average high temperature is January (7.8°C).

  • Average low temperature in August: 18.8°C

The month with the highest average low temperature is July (19.2°C).
The coldest month (with the lowest average low temperature) is January (-0.6°C).

Average pressure in August
River Hills, TN

Average pressure in August - River Hills, TN
  • Average pressure in August: 1016mbar

The month with the highest atmospheric pressure is January (1021.6mbar).
The month with the lowest atmospheric pressure is June (1015.3mbar).

Average wind speed in August
River Hills, TN

Average wind speed in August - River Hills, TN
  • Average wind speed in August: 6.1km/h

The windiest month (with the highest average wind speed) is February (10.4km/h).
The calmest month (with the lowest average wind speed) is August (6.1km/h).

Average humidity in August
River Hills, TN

Average humidity in August - River Hills, TN
  • Average humidity in August: 76%

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, October and November (75%).

Average rainfall in August
River Hills, TN

Average rainfall in August - River Hills, TN
  • Average rainfall in August: 27mm

The wettest months (with the highest rainfall) are February and December (30mm).
The driest month (with the least rainfall) is September (11mm).

Average rainfall days in August
River Hills, TN

Average rainfall days in August - River Hills, TN
  • Average rainfall days in August: 9.9 days

The month with the highest number of rainy days is July (11.7 days).
The month with the least rainy days is October (6.1 days).

Average snowfall in August
River Hills, TN

Average snowfall in August - River Hills, TN
  • Average snowfall in August: 0mm

The month with the highest snowfall is February (8mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in August
River Hills, TN

Average snowfall days in August - River Hills, TN
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
River Hills, TN

Average daylight in August / Average sunshine in August - River Hills, 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: 9h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in August
River Hills, TN

Average sunshine days in August - River Hills, TN
  • Average sunshine days in August: 19.2 days

The month with the most sunshine days is October (23.6 days).
The month with the least sunshine days is July (16.8 days).

Average UV index in August
River Hills, TN

Average UV index in August - River Hills, 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
River Hills, TN

Average cloud cover in August - River Hills, TN
  • Average cloud cover in August: 32

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in August
River Hills, TN

Average visibility in August - River Hills, TN
  • Average visibility in August: 8km

The months with the highest visibility are June, October and November (9km).
The months with the lowest visibility are January, February, March, April, May, July, August, September and December (8km).

River Hills, Tennessee, USA

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