August weather forecast
Signal Hills, TN

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Weather in August

August, the last month of the summer in Signal Hills, is another hot month, with temperature in the range of an average high of 87.4°F (30.8°C) and an average low of 65.8°F (18.8°C).

Temperature

The transition from July to August sees average high-temperatures adjusting to a still hot 87.4°F (30.8°C), from a not significantly different 87.6°F (30.9°C). Signal Hills experiences a dramatic descent in temperature during August, with the average nighttime reading settling at a comfortable 65.8°F (18.8°C).

Heat index

In August, the heat index is appraised at a sweltering 102.2°F (39°C). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

In Signal Hills, the average relative humidity in August is 76%.

Rainfall

In Signal Hills, in August, it is raining for 9.9 days, with typically 1.06" (27mm) of accumulated precipitation. Throughout the year, there are 104.5 rainfall days, and 10.98" (279mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall.

Daylight

In Signal Hills, the average length of the day in August is 13h and 26min.
On the first day of August, sunrise is at 6:51 am and sunset at 8:44 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 8:09 pm EDT.

Sunshine

In August, the average sunshine 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 of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: A typical high UV index of 6 in August suggests the following recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Jun 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

In August, in Signal Hills, the average high-temperature is 87.4°F (30.8°C), and the average low-temperature is 65.8°F (18.8°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 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 Signal Hills, Tennessee, during August, the rain falls for 9.9 days and regularly aggregates up to 1.06" (27mm) of precipitation.

When it does not snow?

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

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

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

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:51 am and sunset at 8:44 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 8:09 pm EDT.

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

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

What is the month with the highest UV index?

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

How high is the UV index 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 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
Signal Hills, TN

Average temperature in August - Signal Hills, TN
  • Average high temperature in August: 87.4°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 (46°F).

  • Average low temperature in August: 65.8°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).

Average pressure in August
Signal Hills, TN

Average pressure in August - Signal Hills, 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
Signal Hills, TN

Average wind speed in August - Signal Hills, TN
  • Average wind speed in August: 3.8mph

The windiest month (with the highest average wind speed) is February (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

Average humidity in August
Signal Hills, TN

Average humidity in August - Signal 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
Signal Hills, TN

Average rainfall in August - Signal Hills, TN
  • Average rainfall in August: 1.06"

The wettest months (with the highest rainfall) are February and December (1.18").
The driest month (with the least rainfall) is September (0.43").

Average rainfall days in August
Signal Hills, TN

Average rainfall days in August - Signal 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
Signal Hills, TN

Average snowfall in August - Signal Hills, TN
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in August
Signal Hills, TN

Average snowfall days in August - Signal 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
Signal Hills, TN

Average daylight in August / Average sunshine in August - Signal 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
Signal Hills, TN

Average sunshine days in August - Signal 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
Signal Hills, TN

Average UV index in August - Signal 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
Signal Hills, TN

Average cloud cover in August - Signal 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
Signal Hills, TN

Average visibility in August - Signal Hills, TN
  • Average visibility in August: 5mi

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

Signal Hills, Tennessee, USA

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