September weather forecast
Reynolds, TN

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Reynolds, Tennessee, with an average temperature ranging between min 61.9°F (16.6°C) and max 81.5°F (27.5°C).

Temperature

Transitioning from August to September involves a subtle drop in average high-temperatures, descending from a tropical 86.9°F (30.5°C) to a moderately hot 81.5°F (27.5°C). Throughout September, Reynolds anticipates an average low-temperature of 61.9°F (16.6°C).

Heat index

September's mean heat index is calculated to be a tropical 86°F (30°C). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.

Humidity

The average relative humidity in September is 75%.

Rainfall

The month with the least rainfall is September, when the rain falls for 8 days and typically collects 0.39" (10mm) of precipitation.

Snowfall

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

Daylight

In September, the average length of the day is 12h and 23min.
On the first day of the month, sunrise is at 6:18 am and sunset at 7:12 pm. On the last day of September, sunrise is at 6:40 am and sunset at 6:30 pm CDT.

Sunshine

In September, the average sunshine is 8.6h.

UV index

In Reynolds, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: The daily high UV index of 5 in September translates into this advice:
Ensure safety - Sun damage prevention is strongly urged. To guard against the harmful effects of the Sun, minimize exposure during midday. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

In Reynolds, in September, the average high-temperature is 81.5°F (27.5°C), and the average low-temperature is 61.9°F (16.6°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in September is calculated to be 86°F (30°C).

What is the average humidity in September?

In Reynolds, Tennessee, the average relative humidity in September is 75%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 8 days and accumulates 0.39" (10mm) of precipitation.

How much does it rain in September?

In Reynolds, during September, the rain falls for 8 days and regularly aggregates up to 0.39" (10mm) of precipitation.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in September?

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

When are sunrise and sunset in September?

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 many hours of sunshine does Reynolds have in September?

In Reynolds, the average sunshine duration in September is 8.6h.

What is the UV index intensity in September?

In Reynolds, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents 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
Reynolds, TN

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

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in September: 61.9°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).

Average pressure in September
Reynolds, TN

Average pressure in September - Reynolds, 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
Reynolds, TN

Average wind speed in September - Reynolds, TN
  • Average wind speed in September: 4.8mph

The windiest month (with the highest average wind speed) is February (8mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

Average humidity in September
Reynolds, TN

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

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (74%).

Average rainfall in September
Reynolds, TN

Average rainfall in September - Reynolds, TN
  • Average rainfall in September: 0.39"

The wettest month (with the highest rainfall) is February (1.5").
The driest month (with the least rainfall) is September (0.39").

Average rainfall days in September
Reynolds, TN

Average rainfall days in September - Reynolds, TN
  • Average rainfall days in September: 8 days

The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is November (7.3 days).

Average snowfall in September
Reynolds, TN

Average snowfall in September - Reynolds, 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 and October (0").

Average snowfall days in September
Reynolds, TN

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

The month with the highest number of snowfall days is January (3.8 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
Reynolds, TN

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

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

Average sunshine days in September
Reynolds, TN

Average sunshine days in September - Reynolds, TN
  • Average sunshine days in September: 18.9 days

The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (13.3 days).

Average UV index in September
Reynolds, TN

Average UV index in September - Reynolds, 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
Reynolds, TN

Average cloud cover in September - Reynolds, TN
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in September
Reynolds, TN

Average visibility in September - Reynolds, 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).

Reynolds, Tennessee, USA

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