Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September's weather displays an average high-temperature of a still moderately hot 80.8°F (27.1°C), slightly varied from August's 85.6°F (29.8°C). Cortners Mill's nighttime temperature in September drops to an average of 61.3°F (16.3°C).Heat index
For most parts of September, the heat index is computed to be a tropical 86°F (30°C). Prolonged activity during exposure might result in a state of fatigue and cause heat cramps.The metrics for the heat index are tailored for both shady environments and light winds. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', blends air temperature and moisture content to represent the felt temperature to humans. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Humidity
In September, the average relative humidity is 76%.Rainfall
September is the month with the least rainfall. Rain falls for 12.8 days and accumulates 1.85" (47mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Cortners Mill, the average length of the day in September is 12h and 23min.On the first day of September in Cortners Mill, sunrise is at 6:17 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 6:29 pm CDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The Sun's radiation is especially intense around midday; try to stay in shade during this period. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Cortners Mill?
What is the average humidity in September in Cortners Mill?
What is the driest month in Cortners Mill?
How many days does it rain in September in Cortners Mill?
When it does not snow in Cortners Mill?
What is the average length of the day in September in Cortners Mill?
When are sunrise and sunset in September in Cortners Mill?
How long on average sun shines in September in Cortners Mill?
What is the UV index reading in September in Cortners Mill?
Average temperature in September
Cortners Mill, TN
- Average high temperature in September: 80.8°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in September: 61.3°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).
Average pressure in September
Cortners Mill, 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 (29.98"Hg).
Average wind speed in September
Cortners Mill, TN
- Average wind speed in September: 4.9mph
The windiest month (with the highest average wind speed) is February (8mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).
Average humidity in September
Cortners Mill, TN
- Average humidity in September: 76%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in September
Cortners Mill, TN
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is February (4.02").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in September
Cortners Mill, TN
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in September
Cortners Mill, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.91").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Cortners Mill, TN
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (3.3 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
Cortners Mill, 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 3min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in September
Cortners Mill, TN
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (9.1 days).
Average UV index in September
Cortners Mill, 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 and December (UV index 2).
Average cloud cover in September
Cortners Mill, 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
Cortners Mill, TN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, September, October, November and December (6mi).
The months with the lowest visibility are May, July and August (5mi).
Cortners Mill, Tennessee, USA
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