September weather forecastLynnville, TN
September
Weather in September
The first month of the autumn, September, is still a warm month in Lynnville, Tennessee, with an average temperature fluctuating between 62.8°F (17.1°C) and 81.5°F (27.5°C).Temperature
Lynnville records a mild change in average high-temperature during September, easing from a tropical 86.9°F (30.5°C) in August to a warm 81.5°F (27.5°C). September nights are marked by an average low-temperature of 62.8°F (17.1°C).Heat index
The heat index in September is calculated to be a hot 86°F (30°C). If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.The metrics for the heat index are tailored for both shady environments and light winds. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Humidity
The average relative humidity in September is 75%.Rainfall
September is the month with the least rainfall. Rain falls for 14.1 days and accumulates 2.52" (64mm) of precipitation.Snowfall
In Lynnville, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:20 am and sunset at 7:14 pm. On the last day of September, sunrise is at 6:42 am and sunset at 6:32 pm CDT.
Sunshine
In Lynnville, the average sunshine in September is 8.6h.UV index
In Lynnville, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lynnville, TN
- Average high temperature in September: 81.5°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (45.9°F).
- Average low temperature in September: 62.8°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (31.8°F).
Average pressure in September
Lynnville, TN
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Lynnville, TN
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is February (8.8mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).
Average humidity in September
Lynnville, TN
- Average humidity in September: 75%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Lynnville, TN
- Average rainfall in September: 2.52"
The wettest month (with the highest rainfall) is February (4.65").
The driest month (with the least rainfall) is September (2.52").
Average rainfall days in September
Lynnville, TN
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is November (10.5 days).
Average snowfall in September
Lynnville, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Lynnville, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.5 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
Lynnville, 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 36min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Lynnville, TN
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is October (17.8 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in September
Lynnville, TN
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Lynnville, TN
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in September
Lynnville, 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).
