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
As Black Jack, Tennessee, welcomes September, the average high-temperature records at a still warm 80.6°F (27°C), marking an insignificant deviation from the prior month. During September, Black Jack sees a mean low-temperature of 61°F (16.1°C).Heat index
The heat index in September is appraised at 84.2°F (29°C). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.It is crucial to understand that heat index figures are for shade and gentle wind conditions. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is a value derived by merging air temperature with the humidity to convey how the climate feels. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Humidity
In Black Jack, the average relative humidity in September is 76%.Rainfall
September is the month with the least rainfall. Rain falls for 14.1 days and accumulates 2.28" (58mm) of precipitation.Snowfall
In Black Jack, Tennessee, snow does not fall in May through October.Daylight
The average length of the day in September in Black Jack, Tennessee, is 12h and 23min.On the first day of the month, sunrise is at 6:17 am and sunset at 7:11 pm. On the last day of September, in Black Jack, sunrise is at 6:39 am and sunset at 6:29 pm CDT.
Sunshine
The average sunshine in September is 8.3h.UV index
In September, the average daily maximum UV index in Black Jack is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Frequently asked questions
What are the temperatures in Black Jack in September?
What is the average humidity in September in Black Jack?
What is the driest month in Black Jack?
How much does it rain in Black Jack in September?
When it does not snow in Black Jack?
How many hours of daylight does Black Jack have in September?
What time are sunrise and sunset in September in Black Jack?
How many hours of sunshine does Black Jack have in September?
What is the UV index reading in September in Black Jack?
Average temperature in September
Black Jack, TN
- Average high temperature in September: 80.6°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in September: 61°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 (30.7°F).
Average pressure in September
Black Jack, 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
Black Jack, TN
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).
Average humidity in September
Black Jack, TN
- Average humidity in September: 76%
The months with the highest relative humidity are March and December (80%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in September
Black Jack, TN
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is July (4.72").
The driest month (with the least rainfall) is September (2.28").
Average rainfall days in September
Black Jack, TN
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is July (21 days).
The month with the least rainy days is November (10.3 days).
Average snowfall in September
Black Jack, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.34").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Black Jack, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.2 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
Black Jack, 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 2min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in September
Black Jack, TN
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is October (17.8 days).
The month with the least sunshine days is July (8.1 days).
Average UV index in September
Black Jack, 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
Black Jack, TN
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in September
Black Jack, TN
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, June, September, October and November (6mi).
The months with the lowest visibility are January, May, July, August and December (5mi).
Black Jack, Tennessee, USA
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