September weather forecast
Lavinia, TN

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Weather in September

The first month of the autumn, September, is still a warm month in Lavinia, Tennessee, with temperature in the range of an average high of 82.8°F (28.2°C) and an average low of 63°F (17.2°C).

Temperature

The average high-temperature during September is a warm 82.8°F (28.2°C), almost matching the conditions of the preceding month. Throughout September, Lavinia encounters an average temperature drop to an enjoyable 63°F (17.2°C).

Heat index

September's average heat index is computed to be a hot 87.8°F (31°C). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.
When referencing the heat index, its values are suitable for shady environments and light breezes. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.

Humidity

In September, the average relative humidity is 73%.

Rainfall

The month with the least rainfall is September, when the rain falls for 13.3 days and typically collects 1.77" (45mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Lavinia, Tennessee, the average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 6:27 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:39 pm CDT.

Sunshine

In Lavinia, the average sunshine in September is 9.3h.

UV index

In Lavinia, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high UV index of 5 in September translates into the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in September?

During September, Lavinia experiences an average high-temperature of 82.8°F (28.2°C) and a low-temperature of 63°F (17.2°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in September is computed to be 87.8°F (31°C).

What is the average humidity in September?

The average relative humidity in September in Lavinia is 73%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 13.3 days and typically collects 1.77" (45mm) of precipitation.

How much does it rain in September?

In September, the rain falls for 13.3 days. Throughout September, 1.77" (45mm) of precipitation is accumulated.

When it does not snow?

In Lavinia, snow does not fall in April through October.

What is the average length of the day in September?

The average day length in September is 12h and 23min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:27 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:39 pm CDT.

How long on average sun shines in September?

In September, the average sunshine duration is 9.3h.

What is the UV index intensity in September in Lavinia?

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Lavinia, TN

Average temperature in September - Lavinia, TN
  • Average high temperature in September: 82.8°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 (44.6°F).

  • Average low temperature in September: 63°F

The month with the highest average low temperature is July (70.2°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).

Average pressure in September
Lavinia, TN

Average pressure in September - Lavinia, TN
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in September
Lavinia, TN

Average wind speed in September - Lavinia, TN
  • Average wind speed in September: 6mph

The windiest month (with the highest average wind speed) is February (9mph).
The calmest month (with the lowest average wind speed) is July (5.3mph).

Average humidity in September
Lavinia, TN

Average humidity in September - Lavinia, TN
  • Average humidity in September: 73%

The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
Lavinia, TN

Average rainfall in September - Lavinia, TN
  • Average rainfall in September: 1.77"

The wettest month (with the highest rainfall) is February (4.13").
The driest month (with the least rainfall) is September (1.77").

Average rainfall days in September
Lavinia, TN

Average rainfall days in September - Lavinia, TN
  • Average rainfall days in September: 13.3 days

The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is November (10 days).

Average snowfall in September
Lavinia, TN

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

The month with the highest snowfall is February (1.1").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Lavinia, TN

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

The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Lavinia, 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: 9h and 2min

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).

Average sunshine days in September
Lavinia, TN

Average sunshine days in September - Lavinia, TN
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (12.6 days).

Average UV index in September
Lavinia, TN

Average UV index in September - Lavinia, TN
  • Average UV index in September: 5

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are February and December (UV index 2).

Average cloud cover in September
Lavinia, TN

Average cloud cover in September - Lavinia, TN
  • Average cloud cover in September: 28

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 26).

Average visibility in September
Lavinia, TN

Average visibility in September - Lavinia, 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).

Lavinia, Tennessee, USA

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