September weather forecast
Flintville, TN

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Weather in September

September, the first month of the autumn in Flintville, is still a warm month, with an average temperature fluctuating between 62.1°F (16.7°C) and 81.5°F (27.5°C).

Temperature

Flintville marks the start of September with an average high-temperature of a moderately hot 81.5°F (27.5°C), hinting at a slight fluctuation from August's 86.7°F (30.4°C). An average low-temperature of 62.1°F (16.7°C) is observed during the September nights.

Heat index

Throughout September, the heat index is evaluated at a tropical 86°F (30°C). With constant exposure and activity, a state of weariness might ensue, leading to potential heat cramps.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly important for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.

Humidity

The average relative humidity in September is 75%.

Rainfall

September is the month with the least rainfall. Rain falls for 13.3 days and accumulates 2.05" (52mm) of precipitation.

Snowfall

April through October are months without snowfall in Flintville.

Daylight

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 7:12 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 6:30 pm CDT.

Sunshine

In September, the average sunshine is 8.6h.

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 unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Jul 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

In September, the average high-temperature and low-temperature are 81.5°F (27.5°C) and 62.1°F (16.7°C) respectively. In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 86°F (30°C).

What is the average humidity in September?

The average relative humidity in September is 75%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 13.3 days and typically collects 2.05" (52mm) of precipitation.

How much does it rain in September?

In Flintville, during September, the rain falls for 13.3 days and regularly aggregates up to 2.05" (52mm) of precipitation.

When it does not snow?

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

How many hours of daylight does Flintville have in September?

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

When is the sunrise / sunset in September in Flintville?

On the first day of September, sunrise is at 6:18 am and sunset at 7:12 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 8.6h.

How high is the UV index in September?

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents 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
Flintville, TN

Average temperature in September - Flintville, TN
  • Average high temperature in September: 81.5°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (45.9°F).

  • Average low temperature in September: 62.1°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).

Average pressure in September
Flintville, TN

Average pressure in September - Flintville, 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
Flintville, TN

Average wind speed in September - Flintville, TN
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is February (8.4mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).

Average humidity in September
Flintville, TN

Average humidity in September - Flintville, TN
  • Average humidity in September: 75%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (74%).

Average rainfall in September
Flintville, TN

Average rainfall in September - Flintville, TN
  • Average rainfall in September: 2.05"

The wettest month (with the highest rainfall) is February (4.37").
The driest month (with the least rainfall) is September (2.05").

Average rainfall days in September
Flintville, TN

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

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is November (9.6 days).

Average snowfall in September
Flintville, TN

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

The month with the highest snowfall is January (0.43").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Flintville, TN

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

The month with the highest number of snowfall days is January (1.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Flintville, 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 4min

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 30min).

Average sunshine days in September
Flintville, TN

Average sunshine days in September - Flintville, TN
  • Average sunshine days in September: 14.3 days

The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is July (9.3 days).

Average UV index in September
Flintville, TN

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

The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in September
Flintville, TN

Average cloud cover in September - Flintville, TN
  • Average cloud cover in September: 32

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in September
Flintville, TN

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

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

Flintville, Tennessee, USA

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