August weather forecast
Rock Castle, TN

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Weather in August

August, the last month of the summer in Rock Castle, is also a moderately hot month, with an average temperature fluctuating between 65.1°F (18.4°C) and 85.8°F (29.9°C).

Temperature

August denotes a minimal variation in the average high-temperature to a warm 85.8°F (29.9°C) from July's 86.5°F (30.3°C). In the month of August, Rock Castle witnesses a consistent average low-temperature of 65.1°F (18.4°C).

Heat index

The average heat index in August is appraised at a fiery hot 98.6°F (37°C). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. 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 calculated temperature value of how hot it feels when the moisture in the air is factored in. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

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

Rainfall

In Rock Castle, in August, during 18 rainfall days, 3.35" (85mm) of precipitation is typically accumulated. Throughout the year, in Rock Castle, there are 170.4 rainfall days, and 37.99" (965mm) of precipitation is accumulated.

Snowfall

In Rock Castle, snow does not fall in May through October.

Daylight

The average length of the day in August in Rock Castle is 13h and 29min.
On the first day of August, sunrise is at 5:50 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 7:11 pm CDT.

Sunshine

In Rock Castle, the average sunshine in August is 10.3h.

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 health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: An average UV index of 6 in August transforms into this advice:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot in Rock Castle during August?

August temperatures in Rock Castle vary between a high-temperature of 85.8°F (29.9°C) and a low-temperature of 65.1°F (18.4°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is appraised at 98.6°F (37°C).

What is the average humidity in August in Rock Castle?

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

How many days does it rain in August in Rock Castle?

In Rock Castle, during August, the rain falls for 18 days and regularly aggregates up to 3.35" (85mm) of precipitation.

When it does not snow in Rock Castle?

May through October are months without snowfall.

How many hours of daylight does Rock Castle have in August?

The average day length in August in Rock Castle is 13h and 29min.

What time are sunrise and sunset in August in Rock Castle?

On the first day of August in Rock Castle, Tennessee, sunrise is at 5:50 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 7:11 pm CDT.

How long on average sun shines in August in Rock Castle?

In August, the average sunshine duration in Rock Castle is 10.3h.

When is the highest UV index in Rock Castle?

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

How high is the UV index in August in Rock Castle?

In August, the average daily maximum UV index in Rock Castle is 6. A UV Index reading of 6 to 7 represents 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
Rock Castle, TN

Average temperature in August - Rock Castle, TN
  • Average high temperature in August: 85.8°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (43.9°F).

  • Average low temperature in August: 65.1°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

Average pressure in August
Rock Castle, TN

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

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in August
Rock Castle, TN

Average wind speed in August - Rock Castle, TN
  • Average wind speed in August: 4.2mph

The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in August
Rock Castle, TN

Average humidity in August - Rock Castle, TN
  • Average humidity in August: 77%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is November (75%).

Average rainfall in August
Rock Castle, TN

Average rainfall in August - Rock Castle, TN
  • Average rainfall in August: 3.35"

The wettest month (with the highest rainfall) is February (4.09").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in August
Rock Castle, TN

Average rainfall days in August - Rock Castle, TN
  • Average rainfall days in August: 18 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (9.5 days).

Average snowfall in August
Rock Castle, TN

Average snowfall in August - Rock Castle, TN
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Rock Castle, TN

Average snowfall days in August - Rock Castle, TN
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (3.9 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
Rock Castle, TN

Average daylight in August / Average sunshine in August - Rock Castle, TN
  • Average daylight in August: 13h and 3min

The month with the longest days is June (Average daylight: 14h and 36min).
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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

Average sunshine days in August
Rock Castle, TN

Average sunshine days in August - Rock Castle, TN
  • Average sunshine days in August: 10.9 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (10.3 days).

Average UV index in August
Rock Castle, TN

Average UV index in August - Rock Castle, 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
Rock Castle, TN

Average cloud cover in August - Rock Castle, TN
  • Average cloud cover in August: 31

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in August
Rock Castle, TN

Average visibility in August - Rock Castle, TN
  • Average visibility in August: 5mi

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

Rock Castle, Tennessee, USA

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