September weather forecast
Blackman, TN

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Weather in September

The first month of the autumn, September, is still a warm month in Blackman, Tennessee, with an average temperature varying between 61.9°F (16.6°C) and 81.5°F (27.5°C).

Temperature

Blackman's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's tropical 86.9°F (30.5°C) to a moderately hot 81.5°F (27.5°C). Throughout September nights, Blackman registers an average low-temperature of 61.9°F (16.6°C).

Heat index

The heat index for September is evaluated at a hot 86°F (30°C). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.

Humidity

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

Rainfall

September is the month with the least rainfall in Blackman. Rain falls for 8 days and accumulates 0.39" (10mm) of precipitation.

Snowfall

April through October are months without snowfall in Blackman.

Daylight

In September, the average length of the day is 12h and 23min.
On the first day of the month, sunrise is at 6:18 am and sunset at 7:13 pm. On the last day of September, sunrise is at 6:40 am and sunset at 6:30 pm CDT.

Sunshine

In September, the average sunshine is 8.6h.

UV index

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, the UV index of 5 transforms into the following advice:
Be vigilant - Preventing sunburn is recommended. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Frequently asked questions

What is the temperature in September in Blackman?

September temperatures in Blackman, Tennessee, vary between a high-temperature of 81.5°F (27.5°C) and a low-temperature of 61.9°F (16.6°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 86°F (30°C).

What is the average humidity in September in Blackman?

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

What is the driest month in Blackman?

September is the month with the least rainfall. Rain falls for 8 days and accumulates 0.39" (10mm) of precipitation.

How much does it rain in Blackman in September?

In September, in Blackman, the rain falls for 8 days. Throughout September, 0.39" (10mm) of precipitation is accumulated.

When it does not snow in Blackman?

April through October are months without snowfall in Blackman.

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

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

When is the sunrise / sunset in September in Blackman?

On the first day of September in Blackman, Tennessee, sunrise is at 6:18 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 6:30 pm CDT.

How long on average sun shines in September in Blackman?

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

What is the UV index reading in September in Blackman?

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

Average temperature in September - Blackman, TN
  • Average high temperature in September: 81.5°F

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (45.1°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 (30.7°F).

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Average pressure in September
Blackman, TN

Average pressure in September - Blackman, 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
Blackman, TN

Average wind speed in September - Blackman, TN
  • Average wind speed in September: 4.8mph

The windiest month (with the highest average wind speed) is February (8mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

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Average humidity in September
Blackman, TN

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

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

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Average rainfall in September
Blackman, TN

Average rainfall in September - Blackman, TN
  • Average rainfall in September: 0.39"

The wettest month (with the highest rainfall) is February (1.5").
The driest month (with the least rainfall) is September (0.39").

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Average rainfall days in September
Blackman, TN

Average rainfall days in September - Blackman, TN
  • Average rainfall days in September: 8 days

The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is November (7.3 days).

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Average snowfall in September
Blackman, TN

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

The month with the highest snowfall is February (0.31").
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
Blackman, TN

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

The month with the highest number of snowfall days is January (3.8 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
Blackman, TN

Average daylight in September / Average sunshine in September - Blackman, 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 4min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days in September
Blackman, TN

Average sunshine days in September - Blackman, TN
  • Average sunshine days in September: 18.9 days

The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (13.3 days).

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Average UV index in September
Blackman, TN

Average UV index in September - Blackman, 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
Blackman, TN

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

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 29).

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Average visibility in September
Blackman, TN

Average visibility in September - Blackman, 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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Blackman, Tennessee, USA

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