September weather forecastAethra, TN
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Aethra, Tennessee, with temperature in the range of an average high of 81.9°F (27.7°C) and an average low of 61.9°F (16.6°C).Temperature
The arrival of September suggests a slight decrease in the average high-temperature, moving from a hot 87.3°F (30.7°C) in August to a moderately hot 81.9°F (27.7°C). An average temperature of 61.9°F (16.6°C) marks the nights in Aethra in September.Heat index
The heat index for September is calculated to be a hot 87.8°F (31°C). Constant activity during exposure could result in a state of weariness and possibly heat cramps.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Humidity
In Aethra, the average relative humidity in September is 76%.Rainfall
In Aethra, during September, the rain falls for 13.7 days and regularly aggregates up to 2.56" (65mm) of precipitation. In Aethra, during the entire year, the rain falls for 170.2 days and collects up to 39.33" (999mm) of precipitation.Snowfall
May through September are months without snowfall in Aethra.Daylight
The average length of the day in September is 12h and 23min.On the first day of September in Aethra, sunrise is at 6:22 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:34 pm CDT.
Sunshine
In September, the average sunshine is 8.4h.UV index
In September, the average daily maximum UV index in Aethra is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 5 during September morphs into the following directions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Aethra, TN
- Average high temperature in September: 81.9°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 (45.1°F).
- Average low temperature in September: 61.9°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in September
Aethra, TN
- Average pressure in September: 30.02"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
Aethra, TN
- Average wind speed in September: 5.2mph
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
Aethra, TN
- Average humidity in September: 76%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Aethra, TN
- Average rainfall in September: 2.56"
The wettest month (with the highest rainfall) is February (4.21").
The driest month (with the least rainfall) is November (2.48").
Average rainfall days in September
Aethra, TN
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (9.9 days).
Average snowfall in September
Aethra, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.02").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Aethra, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.6 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
Aethra, 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 24min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 30min).
Average sunshine days in September
Aethra, TN
- Average sunshine days in September: 13.8 days
The months with the most sunshine days are October and November (18.9 days).
The month with the least sunshine days is July (10.2 days).
Average UV index in September
Aethra, 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 February and December (UV index 2).
Average cloud cover in September
Aethra, TN
- Average cloud cover in September: 34
The months with the most cloud cover are February and December (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in September
Aethra, TN
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are May, July, August and September (5mi).





