September weather forecast
Olde Mill, TN

Share

Weather in September

September, the first month of the autumn in Olde Mill, is still a warm month, with an average temperature varying between 60.6°F (15.9°C) and 81.5°F (27.5°C).

Temperature

The advent of September brings a slight shift in average high-temperature, moving from a hot 87.4°F (30.8°C) in August to a moderately hot 81.5°F (27.5°C). The average low-temperature during September nights is a refreshing 60.6°F (15.9°C).

Heat index

During September, the heat index is evaluated at a tropical 86°F (30°C). Continuing activity during long-lasting exposure might induce tiredness and result in heat cramps.
Heat index values are typically calculated for conditions of shade and a light breeze. 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 'feels like' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for 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

The average relative humidity in September is 76%.

Rainfall

The month with the least rainfall in Olde Mill is September, when the rain falls for 7.5 days and typically collects 0.43" (11mm) of precipitation.

Snowfall

In Olde Mill, snow does not fall in April through November.

Daylight

In September, the average length of the day is 12h and 23min.
On the first day of September, sunrise is at 7:14 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:25 pm EDT.

Sunshine

In Olde Mill, the average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum daily UV index of 5 during September morphs into the following directions:
Adopt protective measures - It is advised to guard against sun damage. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

The high-temperature in Olde Mill, Tennessee, during September is 81.5°F (27.5°C) and the low-temperature is 60.6°F (15.9°C). The average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, in September is evaluated at 86°F (30°C).

What is the average humidity in September?

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

What is the driest month?

The month with the least rainfall is September, when the rain falls for 7.5 days and typically collects 0.43" (11mm) of precipitation.

How many days does it rain in September?

In Olde Mill, in September, it is raining for 7.5 days, with typically 0.43" (11mm) of accumulated precipitation.

When it does not snow?

April through November are months without snowfall.

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 7:14 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:25 pm EDT.

How long on average sun shines in September?

In Olde Mill, Tennessee, the average sunshine duration in September is 8.5h.

What is the UV index reading in September?

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to 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
Olde Mill, TN

Average temperature in September - Olde Mill, TN
  • Average high temperature in September: 81.5°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 (46°F).

  • Average low temperature in September: 60.6°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).

Average pressure in September
Olde Mill, TN

Average pressure in September - Olde Mill, 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 (29.98"Hg).

Average wind speed in September
Olde Mill, TN

Average wind speed in September - Olde Mill, TN
  • Average wind speed in September: 4.1mph

The windiest month (with the highest average wind speed) is February (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

Average humidity in September
Olde Mill, TN

Average humidity in September - Olde Mill, TN
  • Average humidity in September: 76%

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, October and November (75%).

Average rainfall in September
Olde Mill, TN

Average rainfall in September - Olde Mill, TN
  • Average rainfall in September: 0.43"

The wettest months (with the highest rainfall) are February and December (1.18").
The driest month (with the least rainfall) is September (0.43").

Average rainfall days in September
Olde Mill, TN

Average rainfall days in September - Olde Mill, TN
  • Average rainfall days in September: 7.5 days

The month with the highest number of rainy days is July (11.7 days).
The month with the least rainy days is October (6.1 days).

Average snowfall in September
Olde Mill, TN

Average snowfall in September - Olde Mill, TN
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Olde Mill, TN

Average snowfall days in September - Olde Mill, TN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.3 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
Olde Mill, TN

Average daylight in September / Average sunshine in September - Olde Mill, 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: 8h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in September
Olde Mill, TN

Average sunshine days in September - Olde Mill, TN
  • Average sunshine days in September: 20.5 days

The month with the most sunshine days is October (23.6 days).
The month with the least sunshine days is July (16.8 days).

Average UV index in September
Olde Mill, TN

Average UV index in September - Olde Mill, 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
Olde Mill, TN

Average cloud cover in September - Olde Mill, TN
  • Average cloud cover in September: 32

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in September
Olde Mill, TN

Average visibility in September - Olde Mill, TN
  • Average visibility in September: 5mi

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

Olde Mill, Tennessee, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location