September weather forecast
Brooklyn Heights, TN

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Brooklyn Heights, Tennessee, with temperature in the range of an average high of 81.5°F (27.5°C) and an average low of 62.8°F (17.1°C).

Temperature

The start of September signals a gentle decrease in the average high-temperature, transitioning from a tropical 87.4°F (30.8°C) in August to a warm 81.5°F (27.5°C). Brooklyn Heights experiences an average low-temperature of 62.8°F (17.1°C) in month of September.

Heat index

For September, the heat index is appraised at a hot 86°F (30°C). If exposure and activity persist, fatigue could ensue, possibly leading to heat cramps.
Heat index data is primarily for areas with shade and subjected to light winds. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are highly critical for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.

Humidity

The average relative humidity in September is 74%.

Rainfall

In Brooklyn Heights, in September, it is raining for 13.4 days, with typically 2.01" (51mm) of accumulated precipitation. Throughout the year, there are 169.9 rainfall days, and 31.3" (795mm) of precipitation is accumulated.

Snowfall

In Brooklyn Heights, Tennessee, snow does not fall in May through October.

Daylight

In Brooklyn Heights, the average length of the day in September is 12h and 24min.
On the first day of September, sunrise is at 6:19 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:31 pm CDT.

Sunshine

The average sunshine in September in Brooklyn Heights is 8.6h.

UV index

In Brooklyn Heights, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A daily maximum UV index of 5 in September translates into the following instructions:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

The high-temperature during September is 81.5°F (27.5°C) and the low-temperature is 62.8°F (17.1°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is appraised at 86°F (30°C).

What is the average humidity in September?

The average relative humidity in September is 74%.

How much does it rain in September?

In September, the rain falls for 13.4 days. Throughout September, 2.01" (51mm) of precipitation is accumulated.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Brooklyn Heights have in September?

In Brooklyn Heights, Tennessee, the average day length in September is 12h and 24min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:19 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:31 pm CDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.6h.

What is the UV index intensity in September?

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe 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
Brooklyn Heights, TN

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

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (44.1°F).

  • Average low temperature in September: 62.8°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

Average pressure in September
Brooklyn Heights, TN

Average pressure in September - Brooklyn Heights, 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).

Average wind speed in September
Brooklyn Heights, TN

Average wind speed in September - Brooklyn Heights, TN
  • Average wind speed in September: 5mph

The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).

Average humidity in September
Brooklyn Heights, TN

Average humidity in September - Brooklyn Heights, TN
  • Average humidity in September: 74%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Brooklyn Heights, TN

Average rainfall in September - Brooklyn Heights, TN
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is July (4.02").
The driest month (with the least rainfall) is November (1.77").

Average rainfall days in September
Brooklyn Heights, TN

Average rainfall days in September - Brooklyn Heights, TN
  • Average rainfall days in September: 13.4 days

The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is November (9.7 days).

Average snowfall in September
Brooklyn Heights, TN

Average snowfall in September - Brooklyn Heights, TN
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Brooklyn Heights, TN

Average snowfall days in September - Brooklyn Heights, TN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4.7 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
Brooklyn Heights, TN

Average daylight in September / Average sunshine in September - Brooklyn Heights, 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 42min).

  • Average sunshine in September: 8h and 4min

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

Average sunshine days in September
Brooklyn Heights, TN

Average sunshine days in September - Brooklyn Heights, TN
  • Average sunshine days in September: 14 days

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is July (9.4 days).

Average UV index in September
Brooklyn Heights, TN

Average UV index in September - Brooklyn Heights, 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
Brooklyn Heights, TN

Average cloud cover in September - Brooklyn Heights, TN
  • Average cloud cover in September: 31

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

Average visibility in September
Brooklyn Heights, TN

Average visibility in September - Brooklyn Heights, 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).

Brooklyn Heights, Tennessee, USA

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