September weather forecast
Belltown Mill, TN

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Weather in September

September, the first month of the autumn in Belltown Mill, is also a moderately hot month, with an average temperature varying between 81.1°F (27.3°C) and 59.9°F (15.5°C).

Temperature

As Belltown Mill enters September, the average high-temperature subtly lowers from the a tropical 86.7°F (30.4°C) of August to a moderately hot 81.1°F (27.3°C). Belltown Mill's nights in September cool down to an average low-temperature of 59.9°F (15.5°C).

Heat index

The heat index for September is estimated at a tropical 86°F (30°C). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.
Heat index's context suggests values are appropriate for shady areas and slight breezes. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.

Humidity

The average relative humidity in September in Belltown Mill is 75%.

Rainfall

The month with the least rainfall in Belltown Mill is September, when the rain falls for 11.5 days and typically collects 1.93" (49mm) of precipitation.

Snowfall

In Belltown Mill, Tennessee, 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 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 Belltown Mill is 8.6h.

UV index

The average daily maximum UV index in September in Belltown Mill, Tennessee, is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: The UV index of 5 in September translates into these instructions:
Be vigilant - Suggestions to stave off sun damage are provided. Around midday, solar radiation is most harmful; hence, exposure should be limited. Always opt for UVA and UVB-resistant sunglasses on radiant days.
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Frequently asked questions

What are the temperatures in Belltown Mill in September?

The average high-temperature, in September, in Belltown Mill, is 81.1°F (27.3°C), while the average low-temperature is 59.9°F (15.5°C). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is estimated at 86°F (30°C).

What is the average humidity in September in Belltown Mill?

In Belltown Mill, Tennessee, the average relative humidity in September is 75%.

What is the driest month in Belltown Mill?

The month with the least rainfall in Belltown Mill is September, when the rain falls for 11.5 days and typically collects 1.93" (49mm) of precipitation.

How much does it rain in Belltown Mill in September?

In Belltown Mill, Tennessee, during September, the rain falls for 11.5 days and regularly aggregates up to 1.93" (49mm) of precipitation.

When it does not snow in Belltown Mill?

May through September are months without snowfall in Belltown Mill, Tennessee.

Does it snow in Belltown Mill in September?

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

How many hours of daylight does Belltown Mill have in September?

The average day length in September in Belltown Mill, Tennessee, is 12h and 23min.

What time are sunrise and sunset in September in Belltown Mill?

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, in Belltown Mill, Tennessee, sunrise is at 7:31 am and sunset at 7:21 pm EDT.

How long on average sun shines in September in Belltown Mill?

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

What is the UV index reading in September in Belltown Mill?

In Belltown Mill, Tennessee, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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
Belltown Mill, TN

Average temperature in September - Belltown Mill, 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).

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Average pressure in September
Belltown Mill, TN

Average pressure in September - Belltown Mill, 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).

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Average wind speed in September
Belltown Mill, TN

Average wind speed in September - Belltown Mill, 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).

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Average humidity in September
Belltown Mill, TN

Average humidity in September - Belltown Mill, 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%).

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Average rainfall in September
Belltown Mill, TN

Average rainfall in September - Belltown Mill, 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").

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Average rainfall days in September
Belltown Mill, TN

Average rainfall days in September - Belltown Mill, 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).

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Average snowfall in September
Belltown Mill, TN

Average snowfall in September - Belltown Mill, 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").

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Average snowfall days in September
Belltown Mill, TN

Average snowfall days in September - Belltown Mill, 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).

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Average daylight in September /
Average sunshine in September
Belltown Mill, TN

Average daylight in September / Average sunshine in September - Belltown Mill, 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).

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Average sunshine days in September
Belltown Mill, TN

Average sunshine days in September - Belltown Mill, 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).

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Average UV index in September
Belltown Mill, TN

Average UV index in September - Belltown Mill, 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).

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Average cloud cover in September
Belltown Mill, TN

Average cloud cover in September - Belltown Mill, 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).

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Average visibility in September
Belltown Mill, TN

Average visibility in September - Belltown Mill, 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).

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Belltown Mill, Tennessee, USA

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