September weather forecast
Cooper Mill, TN

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Cooper Mill, Tennessee, with an average temperature fluctuating between 59°F (15°C) and 79.3°F (26.3°C).

Temperature

The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from 84.7°F (29.3°C) in August to a still moderately hot 79.3°F (26.3°C). In Cooper Mill, an average low-temperature of 59°F (15°C) is recorded during September nights.

Humidity

In September, the average relative humidity in Cooper Mill is 78%.

Rainfall

In September, the rain falls for 14.8 days. Throughout September, 2.52" (64mm) of precipitation is accumulated. In Cooper Mill, during the entire year, the rain falls for 183.1 days and collects up to 37.68" (957mm) of precipitation.

Snowfall

In Cooper Mill, snow does not fall in May through October.

Daylight

In Cooper Mill, the average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 6:13 am and sunset at 7:07 pm. On the last day of September, in Cooper Mill, sunrise is at 6:35 am and sunset at 6:25 pm CDT.

Sunshine

In Cooper Mill, Tennessee, the average sunshine in September is 8.1h.

UV index

In September, the average daily maximum UV index in Cooper Mill, Tennessee, is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: An average UV index of 5 in September transforms into this advice:
Adopt protective measures - It is advised to guard against sun damage. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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Frequently asked questions

What are the temperatures in Cooper Mill in September?

September temperatures in Cooper Mill vary between a high-temperature of 79.3°F (26.3°C) and a low-temperature of 59°F (15°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, is estimated at 95°F (35°C).

What is the average humidity in September in Cooper Mill?

In September, the average relative humidity in Cooper Mill, Tennessee, is 78%.

How many days does it rain in September in Cooper Mill?

In Cooper Mill, during September, the rain falls for 14.8 days and regularly aggregates up to 2.52" (64mm) of precipitation.

When it does not snow in Cooper Mill?

In Cooper Mill, Tennessee, snow does not fall in May through October.

What is the average length of the day in September in Cooper Mill?

In September, the average day length in Cooper Mill is 12h and 23min.

When are sunrise and sunset in September in Cooper Mill?

In September, on the first day of the month, sunrise is at 6:13 am and sunset at 7:07 pm. On the last day of the month, in Cooper Mill, Tennessee, sunrise is at 6:35 am and sunset at 6:25 pm CDT.

How many hours of sunshine does Cooper Mill have in September?

In September, the average sunshine duration in Cooper Mill, Tennessee, is 8.1h.

What is the UV index intensity in September in Cooper Mill?

The average daily maximum UV index in September in Cooper Mill, Tennessee, is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from 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 September
Cooper Mill, TN

Average temperature in September - Cooper Mill, TN
  • Average high temperature in September: 79.3°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (43.3°F).

  • Average low temperature in September: 59°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).

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Average pressure in September
Cooper Mill, TN

Average pressure in September - Cooper Mill, TN
  • Average pressure in September: 30.03"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).

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Average wind speed in September
Cooper Mill, TN

Average wind speed in September - Cooper Mill, TN
  • Average wind speed in September: 4.2mph

The windiest month (with the highest average wind speed) is February (7mph).
The calmest months (with the lowest average wind speed) are July and August (4mph).

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Average humidity in September
Cooper Mill, TN

Average humidity in September - Cooper Mill, TN
  • Average humidity in September: 78%

The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are October and November (77%).

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Average rainfall in September
Cooper Mill, TN

Average rainfall in September - Cooper Mill, TN
  • Average rainfall in September: 2.52"

The wettest month (with the highest rainfall) is July (4.45").
The driest month (with the least rainfall) is November (2.01").

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Average rainfall days in September
Cooper Mill, TN

Average rainfall days in September - Cooper Mill, TN
  • Average rainfall days in September: 14.8 days

The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is November (9.9 days).

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Average snowfall in September
Cooper Mill, TN

Average snowfall in September - Cooper Mill, TN
  • Average snowfall in September: 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").

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Average snowfall days in September
Cooper Mill, TN

Average snowfall days in September - Cooper Mill, TN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (5.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Cooper Mill, TN

Average daylight in September / Average sunshine in September - Cooper Mill, TN
  • Average daylight in September: 12h 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 September: 8h and 1min

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 30min).

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Average sunshine days in September
Cooper Mill, TN

Average sunshine days in September - Cooper Mill, TN
  • Average sunshine days in September: 12.5 days

The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is July (8.7 days).

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Average UV index in September
Cooper Mill, TN

Average UV index in September - Cooper Mill, TN
  • Average UV index in September: 5

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).

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Average cloud cover in September
Cooper Mill, TN

Average cloud cover in September - Cooper Mill, TN
  • Average cloud cover in September: 34

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 32).

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Average visibility in September
Cooper Mill, TN

Average visibility in September - Cooper Mill, TN
  • Average visibility in September: 5mi

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

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Cooper Mill, Tennessee, USA

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