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 Rossville welcomes September, the average high-temperature stabilizes at a moderately hot 83.5°F (28.6°C), showing little deviation from August's 88.3°F (31.3°C). Rossville's temperature drops to an average low of 64.4°F (18°C) during the nights of September.Heat index
September's mean heat index is calculated to be a hot 89.6°F (32°C). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
The average relative humidity in September is 73%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.4 days and typically collects 2.2" (56mm) of precipitation.Snowfall
In Rossville, snow does not fall in April through October.Daylight
In Rossville, Tennessee, the average length of the day in September is 12h and 23min.On the first day of September in Rossville, sunrise is at 6:31 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:43 pm CDT.
Sunshine
The average sunshine in September is 9.4h.UV index
In Rossville, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In September, a regular UV index of 5 translates into these guidelines:
Undertake protective steps - Preventing sun damage is advised. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Rossville during September?
What is the average humidity in September in Rossville?
What is the driest month in Rossville?
How many days does it rain in September in Rossville?
When it does not snow in Rossville?
What is the average length of the day in September in Rossville?
When is the sunrise / sunset in September in Rossville?
How long on average sun shines in September in Rossville?
What is the UV index reading in September in Rossville?
Average temperature in September
Rossville, TN
- Average high temperature in September: 83.5°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (46.9°F).
- Average low temperature in September: 64.4°F
The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).
Average pressure in September
Rossville, 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 (29.95"Hg).
Average wind speed in September
Rossville, TN
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is February (8.8mph).
The calmest month (with the lowest average wind speed) is July (5.1mph).
Average humidity in September
Rossville, TN
- Average humidity in September: 73%
The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Rossville, TN
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is February (4.61").
The driest month (with the least rainfall) is September (2.2").
Average rainfall days in September
Rossville, TN
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is August (17.1 days).
The month with the least rainy days is October (10 days).
Average snowfall in September
Rossville, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Rossville, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rossville, 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: 9h and 2min
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 36min).
Average sunshine days in September
Rossville, TN
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is October (20 days).
The month with the least sunshine days is July (11.5 days).
Average UV index in September
Rossville, TN
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Rossville, TN
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in September
Rossville, 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).
Rossville, Tennessee, USA
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