September weather forecast
Weakley Hills, TN

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Weather in September

September, the first month of the autumn in Weakley Hills, is still a warm month, with an average temperature fluctuating between 81.9°F (27.7°C) and 62.6°F (17°C).

Temperature

The onset of September entails a subtle temperature shift, as the average high-temperature eases from a hot 88°F (31.1°C) in August to a moderately hot 81.9°F (27.7°C). Throughout the month of September, the nighttime temperature dips to an average of 62.6°F (17°C).

Heat index

The heat index in September is appraised at a tropical 87.8°F (31°C). Ongoing exposure and activity could lead to a state of exhaustion, with a chance of heat cramps.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.

Humidity

In September, the average relative humidity is 74%.

Rainfall

In Weakley Hills, in September, it is raining for 12.1 days, with typically 1.5" (38mm) of accumulated precipitation. In Weakley Hills, during the entire year, the rain falls for 150.1 days and collects up to 24.41" (620mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Weakley Hills, the average length of the day in September is 12h and 23min.
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 6:40 am and sunset at 6:30 pm CDT.

Sunshine

The average sunshine in September in Weakley Hills is 8.4h.

UV index

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum UV index of 5 in September translates into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Jun 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

The average high-temperature, in September, in Weakley Hills, is 81.9°F (27.7°C), while the average low-temperature is 62.6°F (17°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is appraised at 87.8°F (31°C).

What is the average humidity in September?

In Weakley Hills, the average relative humidity in September is 74%.

How many days does it rain in September?

In Weakley Hills, in September, during 12.1 rainfall days, 1.5" (38mm) of precipitation is typically accumulated.

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 in Weakley Hills is 12h and 23min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:18 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 6:30 pm CDT.

How long on average sun shines in September?

The average sunshine duration in September is 8.4h.

How high is the UV index in September?

In Weakley Hills, Tennessee, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Weakley Hills, TN

Average temperature in September - Weakley Hills, TN
  • Average high temperature in September: 81.9°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in September: 62.6°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 (30.7°F).

Average pressure in September
Weakley Hills, TN

Average pressure in September - Weakley Hills, 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 (29.97"Hg).

Average wind speed in September
Weakley Hills, TN

Average wind speed in September - Weakley Hills, TN
  • Average wind speed in September: 4.8mph

The windiest month (with the highest average wind speed) is February (8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in September
Weakley Hills, TN

Average humidity in September - Weakley Hills, TN
  • Average humidity in September: 74%

The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are June, August and October (73%).

Average rainfall in September
Weakley Hills, TN

Average rainfall in September - Weakley Hills, TN
  • Average rainfall in September: 1.5"

The wettest month (with the highest rainfall) is July (3.19").
The driest month (with the least rainfall) is November (1.38").

Average rainfall days in September
Weakley Hills, TN

Average rainfall days in September - Weakley Hills, TN
  • Average rainfall days in September: 12.1 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is November (7.7 days).

Average snowfall in September
Weakley Hills, TN

Average snowfall in September - Weakley Hills, TN
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.71").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Weakley Hills, TN

Average snowfall days in September - Weakley Hills, TN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (3.5 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
Weakley Hills, TN

Average daylight in September / Average sunshine in September - Weakley Hills, 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 48min).

  • Average sunshine in September: 8h and 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

Average sunshine days in September
Weakley Hills, TN

Average sunshine days in September - Weakley Hills, TN
  • Average sunshine days in September: 15.6 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (11.8 days).

Average UV index in September
Weakley Hills, TN

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

Average cloud cover in September
Weakley Hills, TN

Average cloud cover in September - Weakley Hills, TN
  • Average cloud cover in September: 32

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in September
Weakley Hills, TN

Average visibility in September - Weakley Hills, 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).

Weakley Hills, Tennessee, USA

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