September weather forecast
Townsend, TN

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Weather in September

September marks a gradual transition from summer to fall with temperatures cooling down to 77.7°F (25.4°C). It brings along 2.44" (62mm) of rainfall spanning a whole of 16.5 days. Despite the decrease in temperatures, the relative humidity remains steady at 77%. An hour shorter daylight time from August to September signals the impending arrival of autumn. Thus, weather conditions in Townsend, Tennessee in this month can be characterized by a mild drop in temperature, consistent humidity, and decreasing daylight.

Temperature

September observes an average high-temperature of a still warm 77.7°F (25.4°C), marking an insignificant difference from August's 82.9°F (28.3°C). During the month of September, an average low-temperature of 56.3°F (13.5°C) is recorded in Townsend.

Humidity

The average relative humidity in September is 77%.

Rainfall

The month with the least rainfall is September, when the rain falls for 16.5 days and typically collects 2.44" (62mm) of precipitation.

Snowfall

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

Daylight

In September, the average length of the day is 12h and 23min.
On the first day of the month, sunrise is at 7:07 am and sunset at 8:01 pm. On the last day of September, sunrise is at 7:29 am and sunset at 7:19 pm EDT.

Sunshine

The average sunshine in September in Townsend is 8.6h.

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: An average maximum UV index of 4 in September leads to these recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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Frequently asked questions

What is the usual temperature for Townsend in September?

September temperatures in Townsend, Tennessee, vary between a high-temperature of 77.7°F (25.4°C) and a low-temperature of 56.3°F (13.5°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is computed to be 89.6°F (32°C).

What is the average humidity in September in Townsend?

In Townsend, Tennessee, the average relative humidity in September is 77%.

What is the driest month in Townsend?

The month with the least rainfall in Townsend, Tennessee, is September, when the rain falls for 16.5 days and typically collects 2.44" (62mm) of precipitation.

How much does it rain in Townsend in September?

In September, in Townsend, Tennessee, the rain falls for 16.5 days. Throughout September, 2.44" (62mm) of precipitation is accumulated.

When it does not snow in Townsend?

In Townsend, Tennessee, snow does not fall in May through September.

Does it snow in Townsend in September?

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

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

The average day length in September in Townsend is 12h and 23min.

When is the sunrise / sunset in September in Townsend?

On the first day of September in Townsend, sunrise is at 7:07 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:19 pm EDT.

How many hours of sunshine does Townsend have in September?

The average sunshine duration in September in Townsend is 8.6h.

How high is the UV index in September in Townsend?

In Townsend, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health risk 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
Townsend, TN

Average temperature in September - Townsend, TN
  • Average high temperature in September: 77.7°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (43.3°F).

  • Average low temperature in September: 56.3°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).

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Average pressure in September
Townsend, TN

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

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

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Average wind speed in September
Townsend, TN

Average wind speed in September - Townsend, TN
  • Average wind speed in September: 3.7mph

The windiest month (with the highest average wind speed) is April (5.7mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).

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Average humidity in September
Townsend, TN

Average humidity in September - Townsend, TN
  • Average humidity in September: 77%

The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are June, July, August and November (76%).

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Average rainfall in September
Townsend, TN

Average rainfall in September - Townsend, TN
  • Average rainfall in September: 2.44"

The wettest month (with the highest rainfall) is July (4.37").
The driest month (with the least rainfall) is September (2.44").

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Average rainfall days in September
Townsend, TN

Average rainfall days in September - Townsend, TN
  • Average rainfall days in September: 16.5 days

The month with the highest number of rainy days is July (21.6 days).
The month with the least rainy days is November (11.9 days).

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Average snowfall in September
Townsend, TN

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

The month with the highest snowfall is February (3.35").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Townsend, TN

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

The month with the highest number of snowfall days is January (7.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Townsend, TN

Average daylight in September / Average sunshine in September - Townsend, 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 January (Average sunshine: 5h and 18min).

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Average sunshine days in September
Townsend, TN

Average sunshine days in September - Townsend, TN
  • Average sunshine days in September: 11.2 days

The month with the most sunshine days is October (16.7 days).
The month with the least sunshine days is July (6.8 days).

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Average UV index in September
Townsend, TN

Average UV index in September - Townsend, TN
  • Average UV index in September: 4

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).

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Average cloud cover in September
Townsend, TN

Average cloud cover in September - Townsend, TN
  • Average cloud cover in September: 33

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in September
Townsend, TN

Average visibility in September - Townsend, TN
  • Average visibility in September: 5mi

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

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Townsend, Tennessee, USA

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