September weather forecast
Acorn Hill, TN

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Weather in September

September, the first month of the autumn in Acorn Hill, is also a moderately hot month, with an average temperature ranging between max 81.1°F (27.3°C) and min 61.7°F (16.5°C).

Temperature

With the arrival of September, Acorn Hill experiences a modest decline in average high-temperatures, transitioning from a tropical 86.5°F (30.3°C) in August to a warm 81.1°F (27.3°C). The average temperature during September nights is registered at a refreshing 61.7°F (16.5°C).

Heat index

September's heat index is computed to be a tropical 86°F (30°C). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.
In the scope of the heat index, its values resonate with shade and light wind conditions. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for 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 September, the average relative humidity in Acorn Hill is 76%.

Rainfall

The month with the least rainfall in Acorn Hill, Tennessee, is September, when the rain falls for 14.2 days and typically collects 2.28" (58mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Acorn Hill, Tennessee, the average length of the day in September is 12h and 24min.
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 September, the average sunshine in Acorn Hill is 8.7h.

UV index

In Acorn Hill, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum UV index of 5 in September translates into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

What is the usual temperature for Acorn Hill in September?

The average high-temperature, in September, in Acorn Hill, is 81.1°F (27.3°C), while the average low-temperature is 61.7°F (16.5°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is computed to be 86°F (30°C).

What is the average humidity in September in Acorn Hill?

The average relative humidity in September is 76%.

What is the driest month in Acorn Hill?

September is the month with the least rainfall. Rain falls for 14.2 days and accumulates 2.28" (58mm) of precipitation.

How many days does it rain in September in Acorn Hill?

In Acorn Hill, Tennessee, in September, it is raining for 14.2 days, with typically 2.28" (58mm) of accumulated precipitation.

When it does not snow in Acorn Hill?

In Acorn Hill, snow does not fall in May through October.

What is the average length of the day in September in Acorn Hill?

In Acorn Hill, the average day length in September is 12h and 24min.

When are sunrise and sunset in September in Acorn Hill?

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.

How long on average sun shines in September in Acorn Hill?

In September, the average sunshine duration in Acorn Hill, Tennessee, is 8.7h.

What is the UV index reading in September in Acorn Hill?

In September, the average daily maximum UV index in Acorn Hill is 5. A UV Index value of 3 to 5 symbolizes 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
Acorn Hill, TN

Average temperature in September - Acorn Hill, TN
  • Average high temperature in September: 81.1°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 (43.9°F).

  • Average low temperature in September: 61.7°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).

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Average pressure in September
Acorn Hill, TN

Average pressure in September - Acorn Hill, 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 (29.96"Hg).

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Average wind speed in September
Acorn Hill, TN

Average wind speed in September - Acorn Hill, TN
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is February (8.4mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in September
Acorn Hill, TN

Average humidity in September - Acorn Hill, TN
  • Average humidity in September: 76%

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

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Average rainfall in September
Acorn Hill, TN

Average rainfall in September - Acorn Hill, TN
  • Average rainfall in September: 2.28"

The wettest month (with the highest rainfall) is July (4.21").
The driest month (with the least rainfall) is September (2.28").

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Average rainfall days in September
Acorn Hill, TN

Average rainfall days in September - Acorn Hill, TN
  • Average rainfall days in September: 14.2 days

The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is November (9.9 days).

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Average snowfall in September
Acorn Hill, TN

Average snowfall in September - Acorn Hill, TN
  • Average snowfall in September: 0"

The month with the highest snowfall is March (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Acorn Hill, TN

Average snowfall days in September - Acorn Hill, TN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (3.3 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
Acorn Hill, TN

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

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Average sunshine days in September
Acorn Hill, TN

Average sunshine days in September - Acorn Hill, TN
  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is July (8.9 days).

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Average UV index in September
Acorn Hill, TN

Average UV index in September - Acorn Hill, 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
Acorn Hill, TN

Average cloud cover in September - Acorn Hill, 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
Acorn Hill, TN

Average visibility in September - Acorn Hill, TN
  • Average visibility in September: 6mi

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

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Acorn Hill, Tennessee, USA

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