September weather forecast
Darden, TN

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Darden, Tennessee, with an average temperature varying between 62.8°F (17.1°C) and 83.1°F (28.4°C).

Temperature

As August shifts into September, a minor alteration in temperatures is observed, with average highs reducing from a hot 88.5°F (31.4°C) to a moderately hot 83.1°F (28.4°C). Darden's temperature drops to an average low of 62.8°F (17.1°C) during the nights of September.

Heat index

September's average heat index is estimated at a tropical 89.6°F (32°C). If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.

Humidity

In September, the average relative humidity is 74%.

Rainfall

The month with the least rainfall is September, when the rain falls for 10 days and typically collects 0.94" (24mm) of precipitation.

Snowfall

May through October are months without snowfall in Darden.

Daylight

In Darden, the average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 6:25 am and sunset at 7:19 pm. On the last day of September, sunrise is at 6:47 am and sunset at 6:37 pm CDT.

Sunshine

In September, the average sunshine is 9.1h.

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: A maximum UV index of 5 in September translates into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Updated: Jul 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in September?

During September, Darden experiences an average high-temperature of 83.1°F (28.4°C) and a low-temperature of 62.8°F (17.1°C). In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 89.6°F (32°C).

What is the average humidity in September?

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

What is the driest month?

September is the month with the least rainfall. Rain falls for 10 days and accumulates 0.94" (24mm) of precipitation.

How many days does it rain in September?

In Darden, during September, the rain falls for 10 days and regularly aggregates up to 0.94" (24mm) of precipitation.

When it does not snow?

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

How many hours of daylight does Darden have in September?

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

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:25 am and sunset at 7:19 pm. On the last day of the month, in Darden, sunrise is at 6:47 am and sunset at 6:37 pm CDT.

How long on average sun shines in September?

The average sunshine duration in September is 9.1h.

How high is the UV index in September?

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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
Darden, TN

Average temperature in September - Darden, TN
  • Average high temperature in September: 83.1°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (45.5°F).

  • Average low temperature in September: 62.8°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).

Average pressure in September
Darden, TN

Average pressure in September - Darden, 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 (29.96"Hg).

Average wind speed in September
Darden, TN

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

The windiest month (with the highest average wind speed) is February (8.2mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

Average humidity in September
Darden, TN

Average humidity in September - Darden, TN
  • Average humidity in September: 74%

The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (73%).

Average rainfall in September
Darden, TN

Average rainfall in September - Darden, TN
  • Average rainfall in September: 0.94"

The wettest month (with the highest rainfall) is February (1.97").
The driest month (with the least rainfall) is September (0.94").

Average rainfall days in September
Darden, TN

Average rainfall days in September - Darden, TN
  • Average rainfall days in September: 10 days

The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is November (7.7 days).

Average snowfall in September
Darden, TN

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

The month with the highest snowfall is November (0.35").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Darden, TN

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

The month with the highest number of snowfall days is February (2.3 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
Darden, TN

Average daylight in September / Average sunshine in September - Darden, 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: 9h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in September
Darden, TN

Average sunshine days in September - Darden, TN
  • Average sunshine days in September: 17.4 days

The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is July (12.4 days).

Average UV index in September
Darden, TN

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

The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in September
Darden, TN

Average cloud cover in September - Darden, TN
  • Average cloud cover in September: 30

The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in September
Darden, TN

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

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

Darden, Tennessee, USA

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