September weather forecastRivermont, TN
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Rivermont, Tennessee, with an average temperature varying between 81.5°F (27.5°C) and 60.6°F (15.9°C).Temperature
During the shift to September, Rivermont records a mild decrease in average high-temperature, moving from a hot 87.4°F (30.8°C) in August to a moderately hot 81.5°F (27.5°C). Rivermont experiences an average low-temperature reading of 60.6°F (15.9°C) throughout September.Heat index
The heat index value for September is estimated at a hot 86°F (30°C). Continuous activity in exposure could lead to a feeling of fatigue and heat cramps.Heat index details are generally centered around shaded locations and a mild breeze. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Humidity
The average relative humidity in September is 76%.Rainfall
The month with the least rainfall is September, when the rain falls for 7.5 days and typically collects 0.43" (11mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In September, the average length of the day is 12h and 23min.On the first day of September in Rivermont, sunrise is at 7:14 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:25 pm EDT.
Sunshine
In Rivermont, the average sunshine in September is 8.5h.UV index
In Rivermont, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, a daily UV index of 5 turns into the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. The solar radiation around mid-day is intense; avoid the Sun and stay safe. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rivermont, TN
- Average high temperature in September: 81.5°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 (46°F).
- Average low temperature in September: 60.6°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in September
Rivermont, 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
Rivermont, TN
- Average wind speed in September: 4.1mph
The windiest month (with the highest average wind speed) is February (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in September
Rivermont, TN
- Average humidity in September: 76%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, October and November (75%).
Average rainfall in September
Rivermont, TN
- Average rainfall in September: 0.43"
The wettest months (with the highest rainfall) are February and December (1.18").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in September
Rivermont, TN
- Average rainfall days in September: 7.5 days
The month with the highest number of rainy days is July (11.7 days).
The month with the least rainy days is October (6.1 days).
Average snowfall in September
Rivermont, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Rivermont, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.3 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
Rivermont, 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 30min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Rivermont, TN
- Average sunshine days in September: 20.5 days
The month with the most sunshine days is October (23.6 days).
The month with the least sunshine days is July (16.8 days).
Average UV index in September
Rivermont, 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
Rivermont, TN
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in September
Rivermont, TN
- Average visibility in September: 5mi
The months with the highest visibility are June, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September and December (5mi).
