September weather forecast
South Mapleton Hills, TN

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Weather in September

September, the first month of the autumn in South Mapleton Hills, is also a moderately hot month, with an average temperature ranging between max 81.9°F (27.7°C) and min 61°F (16.1°C).

Temperature

With the beginning of September, the average high-temperature shows a small decrease, transitioning from a tropical 87.4°F (30.8°C) in August to a moderately hot 81.9°F (27.7°C). The average nighttime temperature in South Mapleton Hills lowers to a comfortable 61°F (16.1°C) throughout September.

Heat index

September's heat index is calculated to be a hot 87.8°F (31°C). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.
Understand that the heat index values take into account shaded locations and mild winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.

Humidity

The months with the lowest humidity are June through November, with an average relative humidity of 75%.

Rainfall

The month with the least rainfall is September, when the rain falls for 11.1 days and typically collects 1.3" (33mm) of precipitation.

Snowfall

April through October are months without snowfall in South Mapleton Hills.

Daylight

The average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 7:12 am and sunset at 8:05 pm. On the last day of September, in South Mapleton Hills, sunrise is at 7:34 am and sunset at 7:24 pm EDT.

Sunshine

In September, the average sunshine is 8.6h.

UV index

In South Mapleton Hills, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 5 during September leads to these advisories:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

The high-temperature during September is 81.9°F (27.7°C) and the low-temperature is 61°F (16.1°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in September is calculated to be 87.8°F (31°C).

What is the least humid month?

The months with the lowest humidity are June through November, with an average relative humidity of 75%.

What is the average humidity in September?

In South Mapleton Hills, 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 11.1 days and typically collects 1.3" (33mm) of precipitation.

How much does it rain in September?

In South Mapleton Hills, during September, the rain falls for 11.1 days and regularly aggregates up to 1.3" (33mm) of precipitation.

When it does not snow?

In South Mapleton Hills, snow does not fall in April through October.

How many hours of daylight does South Mapleton Hills have in September?

In September, the average day length in South Mapleton Hills is 12h and 23min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 7:12 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:24 pm EDT.

How many hours of sunshine does South Mapleton Hills have in September?

In September, the average sunshine duration is 8.6h.

What is the UV index reading in September?

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
South Mapleton Hills, TN

Average temperature in September - South Mapleton Hills, TN
  • Average high temperature in September: 81.9°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 (46.4°F).

  • Average low temperature in September: 61°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).

Average pressure in September
South Mapleton Hills, TN

Average pressure in September - South Mapleton Hills, TN
  • Average pressure in September: 30.03"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
South Mapleton Hills, TN

Average wind speed in September - South Mapleton Hills, TN
  • Average wind speed in September: 4.1mph

The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

Average humidity in September
South Mapleton Hills, TN

Average humidity in September - South Mapleton Hills, TN
  • Average humidity in September: 75%

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

Average rainfall in September
South Mapleton Hills, TN

Average rainfall in September - South Mapleton Hills, TN
  • Average rainfall in September: 1.3"

The wettest month (with the highest rainfall) is July (2.64").
The driest month (with the least rainfall) is September (1.3").

Average rainfall days in September
South Mapleton Hills, TN

Average rainfall days in September - South Mapleton Hills, TN
  • Average rainfall days in September: 11.1 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is November (7.3 days).

Average snowfall in September
South Mapleton Hills, TN

Average snowfall in September - South Mapleton Hills, TN
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
South Mapleton Hills, TN

Average snowfall days in September - South Mapleton Hills, TN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.7 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
South Mapleton Hills, TN

Average daylight in September / Average sunshine in September - South Mapleton Hills, 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 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in September
South Mapleton Hills, TN

Average sunshine days in September - South Mapleton Hills, TN
  • Average sunshine days in September: 16.4 days

The months with the most sunshine days are October and November (21.2 days).
The month with the least sunshine days is July (11.6 days).

Average UV index in September
South Mapleton Hills, TN

Average UV index in September - South Mapleton Hills, 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
South Mapleton Hills, TN

Average cloud cover in September - South Mapleton Hills, TN
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in September
South Mapleton Hills, TN

Average visibility in September - South Mapleton Hills, TN
  • Average visibility in September: 6mi

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

South Mapleton Hills, Tennessee, USA

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