September weather forecast
Liberty, TN

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Weather in September

September, the first month of the autumn in Liberty, is also a moderately hot month, with an average temperature fluctuating between 60.3°F (15.7°C) and 80.6°F (27°C).

Temperature

With September's arrival, Liberty's weather records an average high-temperature of a still moderately hot 80.6°F (27°C), marking little difference from August's 85.6°F (29.8°C). September brings an average low-temperature of 60.3°F (15.7°C) to Liberty.

Heat index

The average heat index in September is estimated at 84.2°F (29°C). Exposure and extended activity could potentially cause a state of fatigue and lead to heat cramps.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.

Humidity

The average relative humidity in September is 77%.

Rainfall

The month with the least rainfall is September, when the rain falls for 15.1 days and typically collects 2.64" (67mm) of precipitation.

Snowfall

May through October are months without snowfall in Liberty, Tennessee.

Daylight

In September, the average length of the day is 12h and 23min.
On the first day of September in Liberty, sunrise is at 6:16 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 6:28 pm CDT.

Sunshine

In Liberty, the average sunshine in September is 8.3h.

UV index

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: An average UV index of 5 in September transforms into this advice:
Undertake precautions - It is suggested to shield oneself from sunburn. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature in Liberty?

The high-temperature in Liberty, Tennessee, during September is 80.6°F (27°C) and the low-temperature is 60.3°F (15.7°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, in September is estimated at 84.2°F (29°C).

What is the average humidity in September in Liberty?

In Liberty, Tennessee, the average relative humidity in September is 77%.

What is the driest month in Liberty?

The month with the least rainfall in Liberty, Tennessee, is September, when the rain falls for 15.1 days and typically collects 2.64" (67mm) of precipitation.

How many days does it rain in September in Liberty?

In Liberty, Tennessee, in September, it is raining for 15.1 days, with typically 2.64" (67mm) of accumulated precipitation.

When it does not snow in Liberty?

May through October are months without snowfall in Liberty, Tennessee.

How many hours of daylight does Liberty have in September?

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

When is the sunrise / sunset in September in Liberty?

In September, on the first day of the month, sunrise is at 6:16 am and sunset at 7:11 pm. On the last day of the month, in Liberty, sunrise is at 6:38 am and sunset at 6:28 pm CDT.

How many hours of sunshine does Liberty have in September?

The average sunshine duration in September in Liberty, Tennessee, is 8.3h.

What is the UV index intensity in September in Liberty?

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

Average temperature in September - Liberty, TN
  • Average high temperature in September: 80.6°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (44.4°F).

  • Average low temperature in September: 60.3°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

Average pressure in September
Liberty, TN

Average pressure in September - Liberty, 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
Liberty, TN

Average wind speed in September - Liberty, TN
  • Average wind speed in September: 4.5mph

The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in September
Liberty, TN

Average humidity in September - Liberty, TN
  • Average humidity in September: 77%

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are October and November (76%).

Average rainfall in September
Liberty, TN

Average rainfall in September - Liberty, TN
  • Average rainfall in September: 2.64"

The wettest month (with the highest rainfall) is July (4.96").
The driest month (with the least rainfall) is September (2.64").

Average rainfall days in September
Liberty, TN

Average rainfall days in September - Liberty, TN
  • Average rainfall days in September: 15.1 days

The month with the highest number of rainy days is July (20.4 days).
The month with the least rainy days is November (10.2 days).

Average snowfall in September
Liberty, TN

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

The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Liberty, TN

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

The months with the highest number of snowfall days are January and February (5.6 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
Liberty, TN

Average daylight in September / Average sunshine in September - Liberty, 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 month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

Average sunshine days in September
Liberty, TN

Average sunshine days in September - Liberty, TN
  • Average sunshine days in September: 13.3 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (8 days).

Average UV index in September
Liberty, TN

Average UV index in September - Liberty, 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
Liberty, TN

Average cloud cover in September - Liberty, TN
  • Average cloud cover in September: 33

The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in September
Liberty, TN

Average visibility in September - Liberty, TN
  • Average visibility in September: 5mi

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

Liberty, Tennessee, USA

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