August weather forecast
Grady, TN

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Weather in August

August, the last month of the summer in Grady, is another tropical month, with temperature in the range of an average high of 86.5°F (30.3°C) and an average low of 64.8°F (18.2°C).

Temperature

As Grady welcomes August, the average high-temperature is noted at a still hot 86.5°F (30.3°C), closely aligning with the preceding month. Grady's nighttime temperatures in August reflect a stark contrast to the day's highs, falling to an average low of 64.8°F (18.2°C).

Heat index

Throughout August, the heat index is estimated at a fiery hot 98.6°F (37°C). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

August, October and November, with an average relative humidity of 75%, are the least humid months.

Rainfall

In Grady, in August, it is raining for 16.5 days, with typically 3.07" (78mm) of accumulated precipitation. Throughout the year, there are 170.1 rainfall days, and 33.23" (844mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Grady.

Daylight

In August, the average length of the day is 13h and 27min.
On the first day of the month, sunrise is at 6:47 am and sunset at 8:41 pm. On the last day of August, sunrise is at 7:10 am and sunset at 8:06 pm EDT.

Sunshine

The average sunshine in August in Grady is 9.7h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 6 during August translates into the following guidance:
Deflect overexposure. Sun protection is a necessity. 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. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during August?

The high-temperature, in August, in Grady, records 86.5°F (30.3°C), while the low-temperature is 64.8°F (18.2°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in August is estimated at 98.6°F (37°C).

What are the least humid months?

The months with the lowest humidity are August, October and November, with an average relative humidity of 75%.

What is the average humidity in August?

In August, the average relative humidity is 75%.

How many days does it rain in August?

In Grady, during August, the rain falls for 16.5 days and regularly aggregates up to 3.07" (78mm) of precipitation.

When it does not snow?

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

What is the average length of the day in August?

In Grady, the average day length in August is 13h and 27min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:47 am and sunset at 8:41 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 8:06 pm EDT.

How long on average sun shines in August?

In August, the average sunshine duration is 9.7h.

What is the month with the highest UV index?

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 August, the average daily maximum UV index in Grady, Tennessee, is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's 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
Grady, TN

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

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (46°F).

  • Average low temperature in August: 64.8°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

Average pressure in August
Grady, TN

Average pressure in August - Grady, TN
  • Average pressure in August: 30.01"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in August
Grady, TN

Average wind speed in August - Grady, TN
  • Average wind speed in August: 3.9mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

Average humidity in August
Grady, TN

Average humidity in August - Grady, TN
  • Average humidity in August: 75%

The month with the highest relative humidity is December (79%).
The months with the lowest relative humidity are August, October and November (75%).

Average rainfall in August
Grady, TN

Average rainfall in August - Grady, TN
  • Average rainfall in August: 3.07"

The wettest month (with the highest rainfall) is July (3.94").
The driest months (with the least rainfall) are September and November (1.89").

Average rainfall days in August
Grady, TN

Average rainfall days in August - Grady, TN
  • Average rainfall days in August: 16.5 days

The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is November (9.1 days).

Average snowfall in August
Grady, TN

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

The month with the highest snowfall is February (0.83").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Grady, TN

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

The month with the highest number of snowfall days is January (4.6 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
Grady, TN

Average daylight in August / Average sunshine in August - Grady, 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 4min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are January and December (Average sunshine: 5h and 6min).

Average sunshine days in August
Grady, TN

Average sunshine days in August - Grady, TN
  • Average sunshine days in August: 11.9 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (10.4 days).

Average UV index in August
Grady, TN

Average UV index in August - Grady, 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
Grady, TN

Average cloud cover in August - Grady, TN
  • Average cloud cover in August: 30

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 28).

Average visibility in August
Grady, TN

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

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

Grady, Tennessee, USA

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