August weather forecast
Cottage Grove, TN

Share

Weather in August

August, the last month of the summer in Cottage Grove, is another tropical month, with an average temperature varying between 67.6°F (19.8°C) and 87.4°F (30.8°C).

Temperature

Cottage Grove's shift into August is marked by a subtle change to a still tropical 87.4°F (30.8°C) from July's 88.5°F (31.4°C) in temperature. August generally records an average low-temperature of 67.6°F (19.8°C).

Heat index

The average heat index in August is evaluated at a very hot 102.2°F (39°C). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

The average relative humidity in August is 76%.

Rainfall

In Cottage Grove, Tennessee, in August, during 14.4 rainfall days, 2.99" (76mm) of precipitation is typically accumulated. In Cottage Grove, during the entire year, the rain falls for 165.6 days and collects up to 37.64" (956mm) of precipitation.

Snowfall

In Cottage Grove, snow does not fall in April through October.

Daylight

The average length of the day in August is 13h and 30min.
On the first day of August, sunrise is at 6:01 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:22 pm CDT.

Sunshine

The average sunshine in August in Cottage Grove is 10.3h.

UV index

In August, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily high UV index of 6 in August translates into this advice:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Updated: Jun 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

The high-temperature in Cottage Grove during August is 87.4°F (30.8°C) and the low-temperature is 67.6°F (19.8°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 102.2°F (39°C).

What is the average humidity in August?

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

How many days does it rain in August?

In Cottage Grove, in August, it is raining for 14.4 days, with typically 2.99" (76mm) of accumulated precipitation.

When it does not snow?

In Cottage Grove, snow does not fall in April through October.

What is the average length of the day in August?

In Cottage Grove, the average day length in August is 13h and 30min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:01 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:22 pm CDT.

How many hours of sunshine does Cottage Grove have in August?

In Cottage Grove, the average sunshine duration in August is 10.3h.

What is the UV index intensity in August?

In August, the average daily maximum UV index in Cottage Grove is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unsafe 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
Cottage Grove, TN

Average temperature in August - Cottage Grove, TN
  • Average high temperature in August: 87.4°F

The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (43.5°F).

  • Average low temperature in August: 67.6°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

Average pressure in August
Cottage Grove, TN

Average pressure in August - Cottage Grove, TN
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in August
Cottage Grove, TN

Average wind speed in August - Cottage Grove, TN
  • Average wind speed in August: 5.2mph

The windiest months (with the highest average wind speed) are January, February and April (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

Average humidity in August
Cottage Grove, TN

Average humidity in August - Cottage Grove, TN
  • Average humidity in August: 76%

The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (72%).

Average rainfall in August
Cottage Grove, TN

Average rainfall in August - Cottage Grove, TN
  • Average rainfall in August: 2.99"

The wettest month (with the highest rainfall) is February (4.17").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in August
Cottage Grove, TN

Average rainfall days in August - Cottage Grove, TN
  • Average rainfall days in August: 14.4 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (10.3 days).

Average snowfall in August
Cottage Grove, TN

Average snowfall in August - Cottage Grove, TN
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Cottage Grove, TN

Average snowfall days in August - Cottage Grove, TN
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.1 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
Cottage Grove, TN

Average daylight in August / Average sunshine in August - Cottage Grove, 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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in August
Cottage Grove, TN

Average sunshine days in August - Cottage Grove, TN
  • Average sunshine days in August: 14 days

The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in August
Cottage Grove, TN

Average UV index in August - Cottage Grove, TN
  • Average UV index in August: 6

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in August
Cottage Grove, TN

Average cloud cover in August - Cottage Grove, TN
  • Average cloud cover in August: 29

The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 28).

Average visibility in August
Cottage Grove, TN

Average visibility in August - Cottage Grove, TN
  • Average visibility in August: 6mi

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

Cottage Grove, Tennessee, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location