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
The start of September marks an average high-temperature of a warm 81.5°F (27.5°C), hardly distinguishable from the conditions in August. Significant variation from daytime temperatures marks September, with the month recording a nightly average of 58.5°F (14.7°C).Heat index
For September, the heat index is calculated to be a tropical 86°F (30°C). Prolonged activity during exposure might result in a state of fatigue and cause heat cramps.Records show heat index calculations are tailored for shaded regions and mild winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
In September, the average relative humidity is 73%.Rainfall
September is the month with the least rainfall in Dandridge. Rain falls for 9.9 days and accumulates 1.14" (29mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Dandridge, Tennessee, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 7:06 am and sunset at 8:00 pm. On the last day of September, sunrise is at 7:28 am and sunset at 7:18 pm EDT.
Sunshine
In Dandridge, the average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum UV index of 5 in September translates into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Dandridge, TN
- Average high temperature in September: 81.5°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (45°F).
- Average low temperature in September: 58.5°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).
Average pressure in September
Dandridge, TN
- Average pressure in September: 30.04"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Dandridge, TN
- Average wind speed in September: 3.9mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in September
Dandridge, TN
- Average humidity in September: 73%
The months with the highest relative humidity are February and December (78%).
The months with the lowest relative humidity are July and August (72%).
Average rainfall in September
Dandridge, TN
- Average rainfall in September: 1.14"
The wettest month (with the highest rainfall) is February (2.8").
The driest month (with the least rainfall) is September (1.14").
Average rainfall days in September
Dandridge, TN
- Average rainfall days in September: 9.9 days
The month with the highest number of rainy days is July (13.6 days).
The month with the least rainy days is October (8.5 days).
Average snowfall in September
Dandridge, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Dandridge, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.5 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
Dandridge, TN
- Average daylight in September: 12h and 2min
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: 8h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in September
Dandridge, TN
- Average sunshine days in September: 18.2 days
The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is February (14.4 days).
Average UV index in September
Dandridge, 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, February and December (UV index 2).
Average cloud cover in September
Dandridge, TN
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June and August (Cloud cover 26).
Average visibility in September
Dandridge, 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).
Dandridge, Tennessee, USA
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