September weather forecast
Rolling Brook, TN

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Weather in September

September, the first month of the autumn in Rolling Brook, is also a moderately hot month, with an average temperature ranging between min 61°F (16.1°C) and max 81.9°F (27.7°C).

Temperature

The arrival of September is marked by a minor reduction in average high-temperature, sliding from a tropical 87.4°F (30.8°C) in August to a moderately hot 81.9°F (27.7°C). Rolling Brook's nights in September cool down to an average low-temperature of 61°F (16.1°C).

Heat index

Throughout September, the heat index is estimated at a tropical 87.8°F (31°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
In the scope of the heat index, its values resonate with shade and light wind conditions. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.

Humidity

June through November, with an average relative humidity of 75%, are the least humid months.

Rainfall

September is the month with the least rainfall. Rain falls for 11.1 days and accumulates 1.3" (33mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Rolling Brook, 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 8:05 pm. On the last day of September, sunrise is at 7:33 am and sunset at 7:24 pm EDT.

Sunshine

The average sunshine in September in Rolling Brook is 8.6h.

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 5 during September translates into the following directions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Rolling Brook in September?

September temperatures vary between a high-temperature of 81.9°F (27.7°C) and a low-temperature of 61°F (16.1°C). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is estimated at 87.8°F (31°C).

What is the least humid month?

June through November, with an average relative humidity of 75%, are the least humid months in Rolling Brook.

What is the average humidity in September?

In September, the average relative humidity is 75%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 11.1 days and typically collects 1.3" (33mm) of precipitation.

How many days does it rain in September?

In September, the rain falls for 11.1 days. Throughout September, 1.3" (33mm) of precipitation is accumulated.

When it does not snow?

In Rolling Brook, snow does not fall in April through October.

How many hours of daylight does Rolling Brook have in September?

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

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 7:12 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 7:24 pm EDT.

How many hours of sunshine does Rolling Brook have in September?

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

What is the UV index intensity in September?

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Rolling Brook, TN

Average temperature in September - Rolling Brook, TN
  • Average high temperature in September: 81.9°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 (46.4°F).

  • Average low temperature in September: 61°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).

Average pressure in September
Rolling Brook, TN

Average pressure in September - Rolling Brook, 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
Rolling Brook, TN

Average wind speed in September - Rolling Brook, TN
  • Average wind speed in September: 4.1mph

The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

Average humidity in September
Rolling Brook, TN

Average humidity in September - Rolling Brook, TN
  • Average humidity in September: 75%

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

Average rainfall in September
Rolling Brook, TN

Average rainfall in September - Rolling Brook, TN
  • Average rainfall in September: 1.3"

The wettest month (with the highest rainfall) is July (2.64").
The driest month (with the least rainfall) is September (1.3").

Average rainfall days in September
Rolling Brook, TN

Average rainfall days in September - Rolling Brook, TN
  • Average rainfall days in September: 11.1 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is November (7.3 days).

Average snowfall in September
Rolling Brook, TN

Average snowfall in September - Rolling Brook, TN
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Rolling Brook, TN

Average snowfall days in September - Rolling Brook, TN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Rolling Brook, TN

Average daylight in September / Average sunshine in September - Rolling Brook, 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 4min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in September
Rolling Brook, TN

Average sunshine days in September - Rolling Brook, TN
  • Average sunshine days in September: 16.4 days

The months with the most sunshine days are October and November (21.2 days).
The month with the least sunshine days is July (11.6 days).

Average UV index in September
Rolling Brook, TN

Average UV index in September - Rolling Brook, 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
Rolling Brook, TN

Average cloud cover in September - Rolling Brook, TN
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in September
Rolling Brook, TN

Average visibility in September - Rolling Brook, TN
  • Average visibility in September: 6mi

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

Rolling Brook, Tennessee, USA

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