September weather forecast
Theta, TN

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Weather in September

The first month of the autumn, September, is still a warm month in Theta, Tennessee, with an average temperature fluctuating between 61.9°F (16.6°C) and 81.3°F (27.4°C).

Temperature

The commencement of September brings an average high-temperature of a warm 81.3°F (27.4°C), marking an inconsequential divergence from August. Throughout September nights, Theta experiences a consistent temperature average of 61.9°F (16.6°C).

Heat index

September's heat index is estimated at a tropical 86°F (30°C). One might feel worn out with persistent exposure and activity, resulting in heat cramps.
Heat index's context suggests values are appropriate for shady areas and slight breezes. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.

Humidity

In Theta, the average relative humidity in September is 76%.

Rainfall

In September, in Theta, the rain falls for 11.3 days. Throughout September, 0.98" (25mm) of precipitation is accumulated. Throughout the year, in Theta, there are 141.9 rainfall days, and 17.32" (440mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Theta.

Daylight

The average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 6:20 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:32 pm CDT.

Sunshine

In September, the average sunshine is 8.6h.

UV index

In Theta, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum daily UV index of 5 during September morphs into the following directions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
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Frequently asked questions

What are the temperatures in Theta in September?

The high-temperature, in September, in Theta, records 81.3°F (27.4°C), while the low-temperature is 61.9°F (16.6°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is estimated at 86°F (30°C).

What is the average humidity in September in Theta?

The average relative humidity in September is 76%.

How much does it rain in Theta in September?

In Theta, in September, during 11.3 rainfall days, 0.98" (25mm) of precipitation is typically accumulated.

When it does not snow in Theta?

In Theta, snow does not fall in April through October.

How many hours of daylight does Theta have in September?

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

When is the sunrise / sunset in September in Theta?

On the first day of September in Theta, Tennessee, sunrise is at 6:20 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:32 pm CDT.

How many hours of sunshine does Theta have in September?

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

What is the UV index reading in September in Theta?

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

Average temperature in September - Theta, TN
  • Average high temperature in September: 81.3°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (45.3°F).

  • Average low temperature in September: 61.9°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).

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Average pressure in September
Theta, TN

Average pressure in September - Theta, TN
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed in September
Theta, TN

Average wind speed in September - Theta, TN
  • Average wind speed in September: 5mph

The windiest month (with the highest average wind speed) is February (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).

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Average humidity in September
Theta, TN

Average humidity in September - Theta, TN
  • Average humidity in September: 76%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in September
Theta, TN

Average rainfall in September - Theta, TN
  • Average rainfall in September: 0.98"

The wettest month (with the highest rainfall) is July (2.17").
The driest month (with the least rainfall) is November (0.94").

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Average rainfall days in September
Theta, TN

Average rainfall days in September - Theta, TN
  • Average rainfall days in September: 11.3 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is November (7.2 days).

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Average snowfall in September
Theta, TN

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

The months with the highest snowfall are February and December (0.2").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Theta, TN

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

The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Theta, 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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in September
Theta, TN

Average sunshine days in September - Theta, TN
  • Average sunshine days in September: 16.9 days

The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is July (11.3 days).

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Average UV index in September
Theta, TN

Average UV index in September - Theta, TN
  • Average UV index in September: 5

The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in September
Theta, TN

Average cloud cover in September - Theta, TN
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 29).

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Average visibility in September
Theta, TN

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

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

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Theta, Tennessee, USA

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