September weather forecast
Tariffville, TN

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Weather in September

The first month of the autumn, September, is still a warm month in Tariffville, Tennessee, with an average temperature ranging between min 59.9°F (15.5°C) and max 81.1°F (27.3°C).

Temperature

The beginning of September brings a slight decrease in the average high-temperature, transitioning from a tropical 86.7°F (30.4°C) in August to a warm 81.1°F (27.3°C). During the month of September, an average low-temperature of 59.9°F (15.5°C) is recorded.

Heat index

The heat index for September is appraised at a tropical 86°F (30°C). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.
Always consider that heat index estimations are for light winds and places in the shade. 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 'felt air temperature' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.

Humidity

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

Rainfall

September is the month with the least rainfall. Rain falls for 11.5 days and accumulates 1.93" (49mm) of precipitation.

Snowfall

In Tariffville, snow does not fall in May through September.

Daylight

In Tariffville, the average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 7:09 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:21 pm EDT.

Sunshine

The average sunshine in September in Tariffville is 8.6h.

UV index

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 5 during September leads to these advisories:
Guard yourself - Avoiding sunburn is suggested. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Updated: Aug 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

In September, the average high-temperature and low-temperature are 81.1°F (27.3°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 appraised at 86°F (30°C).

What is the average humidity in September?

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

What is the driest month?

September is the month with the least rainfall. Rain falls for 11.5 days and accumulates 1.93" (49mm) of precipitation.

How much does it rain in Tariffville in September?

In Tariffville, in September, it is raining for 11.5 days, with typically 1.93" (49mm) of accumulated precipitation.

When it does not snow?

In Tariffville, snow does not fall in May through September.

Does it snow in September?

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

How many hours of daylight does Tariffville have in September?

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

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 7:09 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:21 pm EDT.

How long on average sun shines in September?

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

How high is the UV index in September in Tariffville?

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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
Tariffville, TN

Average temperature in September - Tariffville, TN
  • Average high temperature in September: 81.1°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (45.7°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
Tariffville, TN

Average pressure in September - Tariffville, 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
Tariffville, TN

Average wind speed in September - Tariffville, TN
  • Average wind speed in September: 4.2mph

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest months (with the lowest average wind speed) are July and August (4mph).

Average humidity in September
Tariffville, TN

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

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

Average rainfall in September
Tariffville, TN

Average rainfall in September - Tariffville, TN
  • Average rainfall in September: 1.93"

The wettest month (with the highest rainfall) is February (3.9").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in September
Tariffville, TN

Average rainfall days in September - Tariffville, TN
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is November (8.8 days).

Average snowfall in September
Tariffville, TN

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

The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Tariffville, TN

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

The month with the highest number of snowfall days is January (4.1 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
Tariffville, TN

Average daylight in September / Average sunshine in September - Tariffville, 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 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 6min).

Average sunshine days in September
Tariffville, TN

Average sunshine days in September - Tariffville, TN
  • Average sunshine days in September: 16.8 days

The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is July (11.6 days).

Average UV index in September
Tariffville, TN

Average UV index in September - Tariffville, 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
Tariffville, TN

Average cloud cover in September - Tariffville, TN
  • Average cloud cover in September: 29

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 27).

Average visibility in September
Tariffville, TN

Average visibility in September - Tariffville, 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).

Tariffville, Tennessee, USA

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