September weather forecastBig Boy Junction, TN
September
Weather in September
The first month of the autumn, September, is still a warm month in Big Boy Junction, Tennessee, with temperature in the range of an average low of 63.5°F (17.5°C) and an average high of 82°F (27.8°C).Temperature
Big Boy Junction's shift from August to September is accompanied by an average high-temperature of a warm 82°F (27.8°C), a slight deviation from 86.5°F (30.3°C). During the nights in September, Big Boy Junction observes an average low-temperature of 63.5°F (17.5°C).Heat index
The heat index in September is evaluated at a hot 87.8°F (31°C). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.The metrics for the heat index are tailored for both shady environments and light winds. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', quantifies the warmth felt when relative humidity is considered. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Humidity
In Big Boy Junction, Tennessee, the average relative humidity in September is 73%.Rainfall
The month with the least rainfall is September, when the rain falls for 9.5 days and typically collects 0.59" (15mm) of precipitation.Snowfall
April through October are months without snowfall in Big Boy Junction.Daylight
The average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 6:30 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:42 pm CDT.
Sunshine
In Big Boy Junction, the average sunshine in September is 9.4h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high UV index of 5 in September translates into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Big Boy Junction, TN
- Average high temperature in September: 82°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (44.6°F).
- Average low temperature in September: 63.5°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).
Average pressure in September
Big Boy Junction, TN
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Big Boy Junction, TN
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in September
Big Boy Junction, TN
- Average humidity in September: 73%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (69%).
Average rainfall in September
Big Boy Junction, TN
- Average rainfall in September: 0.59"
The wettest month (with the highest rainfall) is July (1.5").
The driest month (with the least rainfall) is September (0.59").
Average rainfall days in September
Big Boy Junction, TN
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is July (13.7 days).
The month with the least rainy days is January (7 days).
Average snowfall in September
Big Boy Junction, TN
- Average snowfall in September: 0"
The month with the highest snowfall is March (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Big Boy Junction, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Big Boy Junction, TN
- Average daylight in September: 12h and 24min
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 48min).
- Average sunshine in September: 9h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Big Boy Junction, TN
- Average sunshine days in September: 19.2 days
The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is July (14.5 days).
Average UV index in September
Big Boy Junction, TN
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Big Boy Junction, TN
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in September
Big Boy Junction, 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).
