August weather forecast
Rockdale, TN

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Weather in August

The last month of the summer, August, is another tropical month in Rockdale, Tennessee, with an average temperature ranging between min 67.3°F (19.6°C) and max 86.5°F (30.3°C).

Temperature

The arrival of August denotes a barely perceptible change in the average high-temperatures to a still tropical 86.5°F (30.3°C) from July's 87.4°F (30.8°C). During the month of August, the nighttime temperature falls to an average of 67.3°F (19.6°C).

Heat index

During August, the heat index is evaluated at a very hot 98.6°F (37°C). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. 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 essentially critical for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In August, the average relative humidity is 76%.

Rainfall

In Rockdale, during August, the rain falls for 17.4 days and regularly aggregates up to 3.5" (89mm) of precipitation. In Rockdale, during the entire year, the rain falls for 172.4 days and collects up to 38.43" (976mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in August is 13h and 28min.
On the first day of the month, sunrise is at 5:58 am and sunset at 7:52 pm. On the last day of August, sunrise is at 6:21 am and sunset at 7:17 pm CDT.

Sunshine

In August, the average sunshine in Rockdale is 10.2h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 6 during August translates into the following guidance:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

The average high-temperature and low-temperature during August are 86.5°F (30.3°C) and 67.3°F (19.6°C) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, is evaluated at 98.6°F (37°C).

What is the average humidity in August?

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

How many days does it rain in August?

In Rockdale, in August, during 17.4 rainfall days, 3.5" (89mm) of precipitation is typically accumulated.

When it does not snow in Rockdale?

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

How many hours of daylight does Rockdale have in August?

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

When are sunrise and sunset in August in Rockdale?

In August, on the first day of the month, sunrise is at 5:58 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 7:17 pm CDT.

How long on average sun shines in August?

In August, the average sunshine duration is 10.2h.

When is 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 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
Rockdale, TN

Average temperature in August - Rockdale, TN
  • Average high temperature in August: 86.5°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (45.3°F).

  • Average low temperature in August: 67.3°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).

Average pressure in August
Rockdale, TN

Average pressure in August - Rockdale, 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
Rockdale, TN

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

The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

Average humidity in August
Rockdale, TN

Average humidity in August - Rockdale, TN
  • Average humidity in August: 76%

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
Rockdale, TN

Average rainfall in August - Rockdale, TN
  • Average rainfall in August: 3.5"

The wettest months (with the highest rainfall) are February and July (4.06").
The driest month (with the least rainfall) is September (2.36").

Average rainfall days in August
Rockdale, TN

Average rainfall days in August - Rockdale, TN
  • Average rainfall days in August: 17.4 days

The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is November (9.9 days).

Average snowfall in August
Rockdale, TN

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

The month with the highest snowfall is February (1.06").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Rockdale, TN

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

The months with the highest number of snowfall days are January and February (2.8 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
Rockdale, TN

Average daylight in August / Average sunshine in August - Rockdale, 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 January and February (Average sunshine: 4h and 36min).

Average sunshine days in August
Rockdale, TN

Average sunshine days in August - Rockdale, TN
  • Average sunshine days in August: 11.8 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is July (9.9 days).

Average UV index in August
Rockdale, TN

Average UV index in August - Rockdale, TN
  • Average UV index in August: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in August
Rockdale, TN

Average cloud cover in August - Rockdale, 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 30).

Average visibility in August
Rockdale, TN

Average visibility in August - Rockdale, TN
  • Average visibility in August: 6mi

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

Rockdale, Tennessee, USA

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