September weather forecast
Mashburn, TN

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Weather in September

September, the first month of the autumn in Mashburn, is still a warm month, with an average temperature fluctuating between 81.3°F (27.4°C) and 59.9°F (15.5°C).

Temperature

September's onset introduces a mild reduction in the average high-temperature, from a tropical 86.9°F (30.5°C) in August to a moderately hot 81.3°F (27.4°C). In Mashburn, the nighttime temperature averages to a mild 59.9°F (15.5°C) during September.

Heat index

During September, the heat index is computed to be a tropical 86°F (30°C). Exhaustion might be the outcome of enduring exposure and continuous activity, with a risk of heat cramps.
Realize that the values for the heat index are set for shaded places and light winds. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.

Humidity

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

Rainfall

September is the month with the least rainfall in Mashburn. Rain falls for 8.7 days and accumulates 0.79" (20mm) of precipitation.

Snowfall

In Mashburn, Tennessee, 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 7:10 am and sunset at 8:04 pm. On the last day of September, sunrise is at 7:32 am and sunset at 7:22 pm EDT.

Sunshine

In September, the average sunshine is 8.6h.

UV index

In Mashburn, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Exercise prevention - Warding off sunburn is urged. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

The average high-temperature and low-temperature during September are 81.3°F (27.4°C) and 59.9°F (15.5°C) respectively. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is computed to be 86°F (30°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 September, the average relative humidity is 75%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 8.7 days and typically collects 0.79" (20mm) of precipitation.

How many days does it rain in September in Mashburn?

In Mashburn, in September, during 8.7 rainfall days, 0.79" (20mm) of precipitation is typically accumulated.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in September?

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

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 7:10 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:22 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.6h.

How high is the UV index in September?

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health threat 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
Mashburn, TN

Average temperature in September - Mashburn, TN
  • Average high temperature in September: 81.3°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 (46°F).

  • Average low temperature in September: 59.9°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

Average pressure in September
Mashburn, TN

Average pressure in September - Mashburn, 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
Mashburn, TN

Average wind speed in September - Mashburn, TN
  • Average wind speed in September: 4.3mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (4mph).

Average humidity in September
Mashburn, TN

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

The month with the highest relative humidity is December (79%).
The months with the lowest relative humidity are June, July, August, September, October and November (75%).

Average rainfall in September
Mashburn, TN

Average rainfall in September - Mashburn, TN
  • Average rainfall in September: 0.79"

The wettest month (with the highest rainfall) is July (2.09").
The driest month (with the least rainfall) is September (0.79").

Average rainfall days in September
Mashburn, TN

Average rainfall days in September - Mashburn, TN
  • Average rainfall days in September: 8.7 days

The month with the highest number of rainy days is July (13.5 days).
The month with the least rainy days is November (6.7 days).

Average snowfall in September
Mashburn, TN

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

The month with the highest snowfall is February (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Mashburn, TN

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

The month with the highest number of snowfall days is January (2.5 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
Mashburn, TN

Average daylight in September / Average sunshine in September - Mashburn, 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 months with the least sunshine are January and December (Average sunshine: 5h and 6min).

Average sunshine days in September
Mashburn, TN

Average sunshine days in September - Mashburn, TN
  • Average sunshine days in September: 19.6 days

The month with the most sunshine days is October (22.3 days).
The month with the least sunshine days is July (15.3 days).

Average UV index in September
Mashburn, TN

Average UV index in September - Mashburn, 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
Mashburn, TN

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

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 28).

Average visibility in September
Mashburn, TN

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

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

Mashburn, Tennessee, USA

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