September weather forecast
Forest Highlands, TN

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Weather in September

The first month of the autumn, September, is still a warm month in Forest Highlands, Tennessee, with an average temperature ranging between max 81.5°F (27.5°C) and min 60.6°F (15.9°C).

Temperature

Forest Highlands observes a small decrease in the average high-temperature with the arrival of September, falling from August's tropical 87.4°F (30.8°C) to a moderately hot 81.5°F (27.5°C). Forest Highlands records an average nighttime low-temperature of 60.6°F (15.9°C) throughout September.

Heat index

In September, the heat index is evaluated at a tropical 86°F (30°C). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.
Heat index readings emphasize conditions of light breezes and shaded spots. 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 'real feel' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.

Humidity

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

Rainfall

September is the month with the least rainfall. Rain falls for 7.5 days and accumulates 0.43" (11mm) of precipitation.

Snowfall

April through November are months without snowfall in Forest Highlands.

Daylight

The average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 7:14 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:25 pm EDT.

Sunshine

In Forest Highlands, the average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September in Forest Highlands is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 5 in September translates into this advice:
Undertake protective steps - Recommendations to avoid sunburn are issued. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Always opt for UVA and UVB-resistant sunglasses on radiant days.
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Frequently asked questions

What are September temperatures in Forest Highlands?

The high-temperature in Forest Highlands, Tennessee, during September is 81.5°F (27.5°C) and the low-temperature is 60.6°F (15.9°C). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is evaluated at 86°F (30°C).

What is the average humidity in September in Forest Highlands?

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

What is the driest month in Forest Highlands?

September is the month with the least rainfall. Rain falls for 7.5 days and accumulates 0.43" (11mm) of precipitation.

How much does it rain in Forest Highlands in September?

In Forest Highlands, during September, the rain falls for 7.5 days and regularly aggregates up to 0.43" (11mm) of precipitation.

When it does not snow in Forest Highlands?

April through November are months without snowfall in Forest Highlands.

How many hours of daylight does Forest Highlands have in September?

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

What time are sunrise and sunset in September in Forest Highlands?

On the first day of September in Forest Highlands, sunrise is at 7:14 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:25 pm EDT.

How many hours of sunshine does Forest Highlands have in September?

In Forest Highlands, the average sunshine duration in September is 8.5h.

What is the UV index intensity in September in Forest Highlands?

In September, the average daily maximum UV index in Forest Highlands, Tennessee, is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
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
Forest Highlands, TN

Average temperature in September - Forest Highlands, TN
  • Average high temperature in September: 81.5°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 (46°F).

  • Average low temperature in September: 60.6°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).

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Average pressure in September
Forest Highlands, TN

Average pressure in September - Forest Highlands, 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 (29.98"Hg).

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Average wind speed in September
Forest Highlands, TN

Average wind speed in September - Forest Highlands, TN
  • Average wind speed in September: 4.1mph

The windiest month (with the highest average wind speed) is February (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

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Average humidity in September
Forest Highlands, TN

Average humidity in September - Forest Highlands, TN
  • Average humidity in September: 76%

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, October and November (75%).

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Average rainfall in September
Forest Highlands, TN

Average rainfall in September - Forest Highlands, TN
  • Average rainfall in September: 0.43"

The wettest months (with the highest rainfall) are February and December (1.18").
The driest month (with the least rainfall) is September (0.43").

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Average rainfall days in September
Forest Highlands, TN

Average rainfall days in September - Forest Highlands, TN
  • Average rainfall days in September: 7.5 days

The month with the highest number of rainy days is July (11.7 days).
The month with the least rainy days is October (6.1 days).

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Average snowfall in September
Forest Highlands, TN

Average snowfall in September - Forest Highlands, 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, October and November (0").

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Average snowfall days in September
Forest Highlands, TN

Average snowfall days in September - Forest Highlands, TN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Forest Highlands, TN

Average daylight in September / Average sunshine in September - Forest Highlands, 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 3min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in September
Forest Highlands, TN

Average sunshine days in September - Forest Highlands, TN
  • Average sunshine days in September: 20.5 days

The month with the most sunshine days is October (23.6 days).
The month with the least sunshine days is July (16.8 days).

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Average UV index in September
Forest Highlands, TN

Average UV index in September - Forest Highlands, 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
Forest Highlands, TN

Average cloud cover in September - Forest Highlands, TN
  • Average cloud cover in September: 32

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in September
Forest Highlands, TN

Average visibility in September - Forest Highlands, TN
  • Average visibility in September: 5mi

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

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Forest Highlands, Tennessee, USA

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