September weather forecast
Valleyview, TN

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Weather in September

The first month of the autumn, September, is still a warm month in Valleyview, Tennessee, with temperature in the range of an average high of 81.5°F (27.5°C) and an average low of 61.9°F (16.6°C).

Temperature

A minor decrease in the average high-temperature is observed during September, shifting from a tropical 86.9°F (30.5°C) in August to a warm 81.5°F (27.5°C). During September, Valleyview's temperature falls to a steady low-temperature average of 61.9°F (16.6°C).

Heat index

During September, the heat index is appraised at a hot 86°F (30°C). With prolonged exposure and constant activity, one might feel exhausted and experience heat cramps.
Heat index values are typically calculated for conditions of shade and a light breeze. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is an estimation of the warmth sensation when considering humidity levels. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.

Humidity

In Valleyview, 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

April through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 6:17 am and sunset at 7:12 pm. On the last day of September, sunrise is at 6:40 am and sunset at 6:29 pm CDT.

Sunshine

In September, the average sunshine is 8.6h.

UV index

In Valleyview, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 5 during September translates into the following directions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

Valleyview in September has an average high-temperature of 81.5°F (27.5°C) and an average low-temperature of 61.9°F (16.6°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in September is appraised 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 in Valleyview?

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

How many days does it rain in September?

In Valleyview, in September, during 8 rainfall days, 0.39" (10mm) of precipitation is typically accumulated.

When it does not snow?

April through October are months without snowfall.

How many hours of daylight does Valleyview have in September?

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

What time are sunrise and sunset in September?

On the first day of September in Valleyview, sunrise is at 6:17 am and sunset at 7:12 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 6:29 pm CDT.

How long on average sun shines in September?

In Valleyview, 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 moderate health threat from unsafe 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
Valleyview, TN

Average temperature in September - Valleyview, 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
Valleyview, TN

Average pressure in September - Valleyview, 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
Valleyview, TN

Average wind speed in September - Valleyview, 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
Valleyview, TN

Average humidity in September - Valleyview, 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
Valleyview, TN

Average rainfall in September - Valleyview, 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
Valleyview, TN

Average rainfall days in September - Valleyview, 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
Valleyview, TN

Average snowfall in September - Valleyview, 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
Valleyview, TN

Average snowfall days in September - Valleyview, 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
Valleyview, TN

Average daylight in September / Average sunshine in September - Valleyview, 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
Valleyview, TN

Average sunshine days in September - Valleyview, 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
Valleyview, TN

Average UV index in September - Valleyview, 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
Valleyview, TN

Average cloud cover in September - Valleyview, 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
Valleyview, TN

Average visibility in September - Valleyview, 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).

Valleyview, Tennessee, USA

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