September weather forecast
Spencers Mill, TN

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Spencers Mill, Tennessee, with temperature in the range of an average high of 81.1°F (27.3°C) and an average low of 61.7°F (16.5°C).

Temperature

Spencers Mill's September weather features a light decline in high-temperatures, reducing from a tropical 86.7°F (30.4°C) in August to a warm 81.1°F (27.3°C). Spencers Mill experiences an average low-temperature of 61.7°F (16.5°C) in the month of September.

Heat index

The heat index value for September is evaluated at a tropical 86°F (30°C). With constant exposure and activity, a state of weariness might ensue, leading to potential heat cramps.
The metrics for the heat index are tailored for both shady environments and light winds. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.

Humidity

In Spencers Mill, Tennessee, the average relative humidity in September is 76%.

Rainfall

The month with the least rainfall in Spencers Mill, Tennessee, is September, when the rain falls for 9.2 days and typically collects 0.47" (12mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Spencers Mill, the average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 6:21 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:33 pm CDT.

Sunshine

In Spencers Mill, the average sunshine in September is 8.5h.

UV index

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: A maximum UV index of 5 in September translates into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
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Frequently asked questions

What is the average September temperature in Spencers Mill?

The high-temperature, in September, in Spencers Mill, is 81.1°F (27.3°C), while the low-temperature averages to 61.7°F (16.5°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, in September is evaluated at 86°F (30°C).

What is the average humidity in September in Spencers Mill?

In Spencers Mill, Tennessee, the average relative humidity in September is 76%.

What is the driest month in Spencers Mill?

September is the month with the least rainfall. Rain falls for 9.2 days and accumulates 0.47" (12mm) of precipitation.

How much does it rain in Spencers Mill in September?

In September, in Spencers Mill, Tennessee, the rain falls for 9.2 days. Throughout September, 0.47" (12mm) of precipitation is accumulated.

When it does not snow in Spencers Mill?

April through October are months without snowfall in Spencers Mill.

What is the average length of the day in September in Spencers Mill?

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

When are sunrise and sunset in September in Spencers Mill?

On the first day of September in Spencers Mill, sunrise is at 6:21 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:33 pm CDT.

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

In September, the average sunshine duration in Spencers Mill is 8.5h.

What is the UV index intensity in September in Spencers Mill?

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health risk 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
Spencers Mill, TN

Average temperature in September - Spencers Mill, TN
  • Average high temperature in September: 81.1°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 (44.2°F).

  • Average low temperature in September: 61.7°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

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Average pressure in September
Spencers Mill, TN

Average pressure in September - Spencers Mill, 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
Spencers Mill, TN

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

The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

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Average humidity in September
Spencers Mill, TN

Average humidity in September - Spencers Mill, TN
  • Average humidity in September: 76%

The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in September
Spencers Mill, TN

Average rainfall in September - Spencers Mill, TN
  • Average rainfall in September: 0.47"

The wettest month (with the highest rainfall) is July (1.38").
The driest month (with the least rainfall) is September (0.47").

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Average rainfall days in September
Spencers Mill, TN

Average rainfall days in September - Spencers Mill, TN
  • Average rainfall days in September: 9.2 days

The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is November (6 days).

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Average snowfall in September
Spencers Mill, TN

Average snowfall in September - Spencers Mill, TN
  • Average snowfall in September: 0"

The months with the highest snowfall are January, 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
Spencers Mill, TN

Average snowfall days in September - Spencers Mill, TN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (3 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
Spencers Mill, TN

Average daylight in September / Average sunshine in September - Spencers Mill, TN
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days in September
Spencers Mill, TN

Average sunshine days in September - Spencers Mill, TN
  • Average sunshine days in September: 17.5 days

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is July (11.9 days).

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Average UV index in September
Spencers Mill, TN

Average UV index in September - Spencers 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 and December (UV index 2).

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Average cloud cover in September
Spencers Mill, TN

Average cloud cover in September - Spencers Mill, TN
  • Average cloud cover in September: 32

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in September
Spencers Mill, TN

Average visibility in September - Spencers Mill, TN
  • Average visibility in September: 6mi

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

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Spencers Mill, Tennessee, USA

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