August weather forecast
Griffintown, TN

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Weather in August

The last month of the summer, August, is another tropical month in Griffintown, Tennessee, with an average temperature ranging between max 86.7°F (30.4°C) and min 67.5°F (19.7°C).

Temperature

In August, Griffintown's weather conditions record an average high-temperature of a still tropical 86.7°F (30.4°C), demonstrating little divergence from the preceding month. Throughout August, a steady low-temperature average of 67.5°F (19.7°C) is noted.

Heat index

The heat index value for August is calculated to be a very hot 100.4°F (38°C). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

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

Rainfall

In Griffintown, Tennessee, in August, during 17.2 rainfall days, 2.91" (74mm) of precipitation is typically accumulated. In Griffintown, during the entire year, the rain falls for 158.3 days and collects up to 26.57" (675mm) of precipitation.

Snowfall

In Griffintown, snow does not fall in May through September.

Daylight

The average length of the day in August is 13h and 29min.
On the first day of the month, sunrise is at 5:56 am and sunset at 7:53 pm. On the last day of August, in Griffintown, sunrise is at 6:19 am and sunset at 7:17 pm CDT.

Sunshine

The average sunshine in August is 10.3h.

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 health risk from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 6 in August translates into the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Updated: Jun 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

The average high-temperature, in August, in Griffintown, is 86.7°F (30.4°C), while the average low-temperature is 67.5°F (19.7°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, in August is calculated to be 100.4°F (38°C).

What is the average humidity in August?

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

How many days does it rain in August?

In August, the rain falls for 17.2 days. Throughout August, 2.91" (74mm) of precipitation is accumulated.

When it does not snow?

In Griffintown, snow does not fall in May through September.

What is the average length of the day in August?

In August, the average day length is 13h and 29min.

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 5:56 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 7:17 pm CDT.

How many hours of sunshine does Griffintown have in August?

In August, the average sunshine duration is 10.3h.

What are the months with the highest UV index?

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

What is the UV index intensity in August?

In August, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
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
Griffintown, TN

Average temperature in August - Griffintown, TN
  • Average high temperature in August: 86.7°F

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (44.2°F).

  • Average low temperature in August: 67.5°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 (30.6°F).

Average pressure in August
Griffintown, TN

Average pressure in August - Griffintown, 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
Griffintown, TN

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

The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

Average humidity in August
Griffintown, TN

Average humidity in August - Griffintown, 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
Griffintown, TN

Average rainfall in August - Griffintown, TN
  • Average rainfall in August: 2.91"

The wettest month (with the highest rainfall) is July (3.5").
The driest month (with the least rainfall) is November (1.42").

Average rainfall days in August
Griffintown, TN

Average rainfall days in August - Griffintown, TN
  • Average rainfall days in August: 17.2 days

The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (8.6 days).

Average snowfall in August
Griffintown, TN

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

The month with the highest snowfall is December (0.79").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Griffintown, TN

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

The month with the highest number of snowfall days is February (4 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
Griffintown, TN

Average daylight in August / Average sunshine in August - Griffintown, 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 42min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in August
Griffintown, TN

Average sunshine days in August - Griffintown, TN
  • Average sunshine days in August: 11.1 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (9.8 days).

Average UV index in August
Griffintown, TN

Average UV index in August - Griffintown, 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 and December (UV index 2).

Average cloud cover in August
Griffintown, TN

Average cloud cover in August - Griffintown, 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
Griffintown, TN

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

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

Griffintown, Tennessee, USA

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