September weather forecast
Cottonwood Grove, TN

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Weather in September

September, the first month of the autumn in Cottonwood Grove, is also a moderately hot month, with an average temperature ranging between max 81.9°F (27.7°C) and min 63.3°F (17.4°C).

Temperature

Cottonwood Grove, Tennessee, sees the arrival of September with an average high-temperature of a moderately hot 81.9°F (27.7°C), indicating a subtle variation from August. Cottonwood Grove experiences a mean low-temperature of 63.3°F (17.4°C) during September.

Heat index

In September, the heat index is evaluated at a hot 86°F (30°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
In terms of the heat index, values are set with light wind and shade conditions in mind. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', integrates the air's temperature and its humidity to showcase the felt temperature by people. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. 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.

Humidity

In September, the average relative humidity is 73%.

Rainfall

September is the month with the least rainfall in Cottonwood Grove. Rain falls for 12.1 days and accumulates 1.65" (42mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In September, the average length of the day in Cottonwood Grove is 12h and 24min.
On the first day of September in Cottonwood Grove, sunrise is at 6:30 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:42 pm CDT.

Sunshine

In Cottonwood Grove, the average sunshine in September is 9.6h.

UV index

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, a daily UV index of 5 turns into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. It's recommended to limit sun exposure when its radiation is at its peak during midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
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Frequently asked questions

What is the average September temperature in Cottonwood Grove?

The average high-temperature and low-temperature during September are 81.9°F (27.7°C) and 63.3°F (17.4°C) respectively. In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 86°F (30°C).

What is the average humidity in September in Cottonwood Grove?

In September, the average relative humidity is 73%.

What is the driest month in Cottonwood Grove?

The month with the least rainfall is September, when the rain falls for 12.1 days and typically collects 1.65" (42mm) of precipitation.

How much does it rain in Cottonwood Grove in September?

In Cottonwood Grove, Tennessee, in September, it is raining for 12.1 days, with typically 1.65" (42mm) of accumulated precipitation.

When it does not snow in Cottonwood Grove?

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

What is the average length of the day in September in Cottonwood Grove?

In Cottonwood Grove, the average day length in September is 12h and 24min.

What time are sunrise and sunset in September in Cottonwood Grove?

On the first day of September, sunrise is at 6:30 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:42 pm CDT.

How long on average sun shines in September in Cottonwood Grove?

The average sunshine duration in September in Cottonwood Grove, Tennessee, is 9.6h.

What is the UV index intensity in September in Cottonwood Grove?

In September, the average daily maximum UV index in Cottonwood Grove is 5. A UV Index of 3 to 5 symbolizes a moderate 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 September
Cottonwood Grove, TN

Average temperature in September - Cottonwood Grove, TN
  • Average high temperature in September: 81.9°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (43.7°F).

  • Average low temperature in September: 63.3°F

The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).

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Average pressure in September
Cottonwood Grove, TN

Average pressure in September - Cottonwood Grove, TN
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in September
Cottonwood Grove, TN

Average wind speed in September - Cottonwood Grove, TN
  • Average wind speed in September: 6.4mph

The windiest month (with the highest average wind speed) is February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity in September
Cottonwood Grove, TN

Average humidity in September - Cottonwood Grove, TN
  • Average humidity in September: 73%

The months with the highest relative humidity are March, May and August (78%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in September
Cottonwood Grove, TN

Average rainfall in September - Cottonwood Grove, TN
  • Average rainfall in September: 1.65"

The wettest month (with the highest rainfall) is April (4.21").
The driest month (with the least rainfall) is September (1.65").

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Average rainfall days in September
Cottonwood Grove, TN

Average rainfall days in September - Cottonwood Grove, TN
  • Average rainfall days in September: 12.1 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is November (9.1 days).

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Average snowfall in September
Cottonwood Grove, TN

Average snowfall in September - Cottonwood Grove, TN
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.38").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Cottonwood Grove, TN

Average snowfall days in September - Cottonwood Grove, TN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.6 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Cottonwood Grove, TN

Average daylight in September / Average sunshine in September - Cottonwood Grove, TN
  • Average daylight in September: 12h and 2min

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 September: 9h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in September
Cottonwood Grove, TN

Average sunshine days in September - Cottonwood Grove, TN
  • Average sunshine days in September: 15.7 days

The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is July (11.5 days).

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Average UV index in September
Cottonwood Grove, TN

Average UV index in September - Cottonwood Grove, TN
  • Average UV index in September: 5

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).

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Average cloud cover in September
Cottonwood Grove, TN

Average cloud cover in September - Cottonwood Grove, TN
  • Average cloud cover in September: 26

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 25).

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Average visibility in September
Cottonwood Grove, TN

Average visibility in September - Cottonwood Grove, TN
  • Average visibility in September: 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).

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Cottonwood Grove, Tennessee, USA

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