September weather forecast
Cottontown, TN

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Weather in September

The first month of the autumn, September, is still a warm month in Cottontown, Tennessee, with an average temperature varying between 61.5°F (16.4°C) and 80.1°F (26.7°C).

Temperature

Cottontown's progression into September involves a gentle drop in the average high-temperature, from a warm 85.6°F (29.8°C) in August to a still moderately hot 80.1°F (26.7°C). An average nighttime temperature of 61.5°F (16.4°C) is witnessed throughout September.

Humidity

In Cottontown, the average relative humidity in September is 76%.

Rainfall

In Cottontown, in September, during 14.7 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. In Cottontown, during the entire year, the rain falls for 177.4 days and collects up to 44.61" (1133mm) of precipitation.

Snowfall

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

Daylight

In Cottontown, the average length of the day in September is 12h and 24min.
On the first day of September, sunrise is at 6:18 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:30 pm CDT.

Sunshine

In September, the average sunshine is 8.3h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 5 during September translates into the following directions:
Ensure safety - Recommendations to avert sunburn are presented. It's recommended to limit sun exposure when its radiation is at its peak during midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures in Cottontown?

In Cottontown, 80.1°F (26.7°C) is the average high-temperature and 61.5°F (16.4°C) is the average low-temperature during September. In August, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is calculated to be 96.8°F (36°C).

What is the average humidity in September?

In Cottontown, the average relative humidity in September is 76%.

How much does it rain in September?

In Cottontown, in September, it is raining for 14.7 days, with typically 2.8" (71mm) of accumulated precipitation.

When it does not snow?

May through October are months without snowfall.

What is the average length of the day in September?

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

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:18 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:30 pm CDT.

How many hours of sunshine does Cottontown have in September?

In September, the average sunshine duration is 8.3h.

What is the UV index intensity in September?

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents 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
Cottontown, TN

Average temperature in September - Cottontown, TN
  • Average high temperature in September: 80.1°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (42.8°F).

  • Average low temperature in September: 61.5°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).

Average pressure in September
Cottontown, TN

Average pressure in September - Cottontown, TN
  • Average pressure in September: 30.03"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 September
Cottontown, TN

Average wind speed in September - Cottontown, TN
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is February (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity in September
Cottontown, TN

Average humidity in September - Cottontown, TN
  • Average humidity in September: 76%

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

Average rainfall in September
Cottontown, TN

Average rainfall in September - Cottontown, TN
  • Average rainfall in September: 2.8"

The wettest month (with the highest rainfall) is July (5.39").
The driest month (with the least rainfall) is November (2.56").

Average rainfall days in September
Cottontown, TN

Average rainfall days in September - Cottontown, TN
  • Average rainfall days in September: 14.7 days

The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is November (9.7 days).

Average snowfall in September
Cottontown, TN

Average snowfall in September - Cottontown, TN
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Cottontown, TN

Average snowfall days in September - Cottontown, TN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Cottontown, TN

Average daylight in September / Average sunshine in September - Cottontown, 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: 8h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

Average sunshine days in September
Cottontown, TN

Average sunshine days in September - Cottontown, TN
  • Average sunshine days in September: 14.1 days

The month with the most sunshine days is November (17.7 days).
The month with the least sunshine days is July (9.7 days).

Average UV index in September
Cottontown, TN

Average UV index in September - Cottontown, 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, February and December (UV index 2).

Average cloud cover in September
Cottontown, TN

Average cloud cover in September - Cottontown, TN
  • Average cloud cover in September: 34

The month with the most cloud cover is February (Cloud cover 56).
The month with the least cloud cover is June (Cloud cover 32).

Average visibility in September
Cottontown, TN

Average visibility in September - Cottontown, TN
  • Average visibility in September: 6mi

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

Cottontown, Tennessee, USA

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