September weather forecast
Chilhowee, TN

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Chilhowee, Tennessee, with temperature in the range of an average high of 81.1°F (27.3°C) and an average low of 59.9°F (15.5°C).

Temperature

Chilhowee's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's hot 86.7°F (30.4°C) to a warm 81.1°F (27.3°C). During the month of September, Chilhowee's nighttime temperature lowers to an average of 59.9°F (15.5°C).

Heat index

The heat index value for September is computed to be a tropical 86°F (30°C). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.
Heat index determinations are made taking into account the shade and light air movements. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', shows a temperature sensation when both heat and moisture conditions are combined. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.

Humidity

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

Rainfall

September is the month with the least rainfall. Rain falls for 10.6 days and accumulates 0.94" (24mm) of precipitation.

Snowfall

April through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 23min.
On the first day of September in Chilhowee, sunrise is at 7:08 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 7:20 pm EDT.

Sunshine

In Chilhowee, the average sunshine in September is 8.7h.

UV index

In Chilhowee, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the maximum UV index of 5 suggests these recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Chilhowee in September?

In September, in Chilhowee, the average high-temperature is 81.1°F (27.3°C), and the average low-temperature is 59.9°F (15.5°C). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is computed to be 86°F (30°C).

What is the average humidity in September in Chilhowee?

The average relative humidity in September is 74%.

What is the driest month in Chilhowee?

September is the month with the least rainfall in Chilhowee. Rain falls for 10.6 days and accumulates 0.94" (24mm) of precipitation.

How much does it rain in Chilhowee in September?

In Chilhowee, Tennessee, during September, the rain falls for 10.6 days and regularly aggregates up to 0.94" (24mm) of precipitation.

When it does not snow in Chilhowee?

April through September are months without snowfall in Chilhowee, Tennessee.

Does it snow in Chilhowee in September?

In Chilhowee, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Chilhowee?

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

When is the sunrise / sunset in September in Chilhowee?

In September, on the first day of the month, sunrise is at 7:08 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 7:20 pm EDT.

How many hours of sunshine does Chilhowee have in September?

In September, the average sunshine duration is 8.7h.

What is the UV index reading in September in Chilhowee?

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
Chilhowee, TN

Average temperature in September - Chilhowee, TN
  • Average high temperature in September: 81.1°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 (44.8°F).

  • Average low temperature in September: 59.9°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).

Average pressure in September
Chilhowee, TN

Average pressure in September - Chilhowee, TN
  • Average pressure in September: 30.04"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in September
Chilhowee, TN

Average wind speed in September - Chilhowee, TN
  • Average wind speed in September: 3.8mph

The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

Average humidity in September
Chilhowee, TN

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

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is August (72%).

Average rainfall in September
Chilhowee, TN

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

The wettest month (with the highest rainfall) is July (2.2").
The driest month (with the least rainfall) is September (0.94").

Average rainfall days in September
Chilhowee, TN

Average rainfall days in September - Chilhowee, TN
  • Average rainfall days in September: 10.6 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is November (8.7 days).

Average snowfall in September
Chilhowee, TN

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

The month with the highest snowfall is February (0.98").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days in September
Chilhowee, TN

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

The month with the highest number of snowfall days is January (5.4 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
Chilhowee, TN

Average daylight in September / Average sunshine in September - Chilhowee, 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 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

Average sunshine days in September
Chilhowee, TN

Average sunshine days in September - Chilhowee, TN
  • Average sunshine days in September: 17.1 days

The month with the most sunshine days is November (19.3 days).
The months with the least sunshine days are February and July (12.5 days).

Average UV index in September
Chilhowee, TN

Average UV index in September - Chilhowee, 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
Chilhowee, TN

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

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 27).

Average visibility in September
Chilhowee, TN

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

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

Chilhowee, Tennessee, USA

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