September weather forecastSouthern Hills, TN
September
Weather in September
September, the first month of the autumn in Southern Hills, is also a moderately hot month, with temperature in the range of an average high of 81.3°F (27.4°C) and an average low of 61.7°F (16.5°C).Temperature
At the onset of September, Southern Hills records an average high-temperature of a moderately hot 81.3°F (27.4°C), showing little deviation from the preceding month. An average low-temperature of 61.7°F (16.5°C) is noted during the nights in September.Heat index
September's heat index is estimated at a hot 86°F (30°C). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.It is essential to grasp that the heat index's numbers are for shade and light wind settings. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Humidity
In September, the average relative humidity in Southern Hills is 76%.Rainfall
September is the month with the least rainfall. Rain falls for 13.8 days and accumulates 2.36" (60mm) of precipitation.Snowfall
In Southern Hills, snow does not fall in May through October.Daylight
In September, the average length of the day in Southern Hills is 12h and 23min.On the first day of the month, sunrise is at 6:20 am and sunset at 7:14 pm. On the last day of September, in Southern Hills, sunrise is at 6:42 am and sunset at 6:32 pm CDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index in Southern Hills is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 5 during September translates into the following guidance:
Ensure safety - Sun damage prevention is strongly urged. To protect against the Sun's most potent rays, avoid direct exposure around midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Southern Hills, TN
- Average high temperature in September: 81.3°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 (45.3°F).
- Average low temperature in September: 61.7°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in September
Southern Hills, 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
Southern Hills, TN
- Average wind speed in September: 5.1mph
The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in September
Southern Hills, TN
- Average humidity in September: 76%
The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Southern Hills, TN
- Average rainfall in September: 2.36"
The wettest months (with the highest rainfall) are February and July (4.06").
The driest month (with the least rainfall) is September (2.36").
Average rainfall days in September
Southern Hills, TN
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is November (9.9 days).
Average snowfall in September
Southern Hills, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.06").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Southern Hills, TN
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (2.8 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
Southern Hills, TN
- Average daylight in September: 12h and 24min
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 30min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in September
Southern Hills, TN
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in September
Southern Hills, TN
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Southern Hills, TN
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in September
Southern Hills, TN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
