September weather forecast
Piney Acres, TN

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Weather in September

The first month of the autumn, September, is still a warm month in Piney Acres, Tennessee, with an average temperature fluctuating between 80.6°F (27°C) and 59.4°F (15.2°C).

Temperature

The shift from August to September includes a small decrease in the average high-temperature, from a tropical 86.5°F (30.3°C) to a moderately hot 80.6°F (27°C). Piney Acres observes an average nighttime temperature of 59.4°F (15.2°C) during September.

Heat index

The heat index in September is evaluated at 84.2°F (29°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Remember that heat index calculations are made for conditions in the shade with light wind. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.

Humidity

January, June through November, with an average relative humidity of 76%, are the least humid months in Piney Acres.

Rainfall

In Piney Acres, in September, during 12.6 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. Throughout the year, there are 163.6 rainfall days, and 37.44" (951mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In Piney Acres, the average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 7:12 am and sunset at 8:06 pm. On the last day of September, sunrise is at 7:34 am and sunset at 7:24 pm EDT.

Sunshine

In September, the average sunshine in Piney Acres is 8.2h.

UV index

In Piney Acres, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: A maximum high daily UV index of 5 during September translates into the following directions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Updated: Aug 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

During September, Piney Acres experiences an average high-temperature of 80.6°F (27°C) and a low-temperature of 59.4°F (15.2°C). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, is evaluated at 84.2°F (29°C).

What is the least humid month?

January, June through November, with an average relative humidity of 76%, are the least humid months.

What is the average humidity in September?

In Piney Acres, the average relative humidity in September is 76%.

How many days does it rain in September?

In Piney Acres, during September, the rain falls for 12.6 days and regularly aggregates up to 2.4" (61mm) of precipitation.

When it does not snow?

In Piney Acres, snow does not fall in May through October.

What is the average length of the day in September?

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

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 7:12 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:24 pm EDT.

How many hours of sunshine does Piney Acres have in September?

In September, the average sunshine duration is 8.2h.

What is the UV index intensity in September in Piney Acres?

In September, the average daily maximum UV index 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
Piney Acres, TN

Average temperature in September - Piney Acres, TN
  • Average high temperature in September: 80.6°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 (45.1°F).

  • Average low temperature in September: 59.4°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

Average pressure in September
Piney Acres, TN

Average pressure in September - Piney Acres, 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).

Average wind speed in September
Piney Acres, TN

Average wind speed in September - Piney Acres, TN
  • Average wind speed in September: 4.3mph

The windiest months (with the highest average wind speed) are February and April (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (4mph).

Average humidity in September
Piney Acres, TN

Average humidity in September - Piney Acres, TN
  • Average humidity in September: 76%

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are January, June, July, August, September, October and November (76%).

Average rainfall in September
Piney Acres, TN

Average rainfall in September - Piney Acres, TN
  • Average rainfall in September: 2.4"

The wettest month (with the highest rainfall) is July (3.94").
The driest month (with the least rainfall) is November (2.28").

Average rainfall days in September
Piney Acres, TN

Average rainfall days in September - Piney Acres, TN
  • Average rainfall days in September: 12.6 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is November (8.8 days).

Average snowfall in September
Piney Acres, TN

Average snowfall in September - Piney Acres, TN
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.67").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Piney Acres, TN

Average snowfall days in September - Piney Acres, TN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Piney Acres, TN

Average daylight in September / Average sunshine in September - Piney Acres, 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 1min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days in September
Piney Acres, TN

Average sunshine days in September - Piney Acres, TN
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (10.8 days).

Average UV index in September
Piney Acres, TN

Average UV index in September - Piney Acres, 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).

Average cloud cover in September
Piney Acres, TN

Average cloud cover in September - Piney Acres, TN
  • Average cloud cover in September: 34

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 32).

Average visibility in September
Piney Acres, TN

Average visibility in September - Piney Acres, TN
  • Average visibility in September: 5mi

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

Piney Acres, Tennessee, USA

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