September weather forecast
Tennessee, USA

September in Tennessee heralds the advent of fall, introducing a reprieve from the hot, humid summer months. Average high temperatures generally lie between 75°F (23.9°C) and 87°F (30.6°C), while lows oscillate from 55°F (12.8°C) to 65°F (18.3°C). Cities like Memphis and Nashville in the western and central portions of the state often experience the delayed onset of autumnal coolness.

Precipitation in September decreases compared to the wetter spring and summer months, making it one of the drier periods of the year. The month tends to be less humid, and rain, when it occurs, is often lighter and less frequent. Eastern highlands experience a more noticeable drop in temperature and begin to showcase early signs of fall foliage.

September represents a noticeable shift from the hot conditions of August. The month brings cooler nights and milder days, particularly in the latter half. The oppressive humidity of the summer wanes, giving way to more comfortable outdoor conditions. Though September may still offer a few hot days, particularly in the early part, the general trend is toward cooling, setting the stage for the full arrival of autumn in October.

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• Nashville - September »
  September nights experience a consistent temperature drop to an enjoyable 62.8°F (17.1°C). In September, the rain falls for 13.4 days.
• Memphis - September »
  The month with the least rainfall in Memphis is September, when the rain falls for 8.2 days and typically collects 0.43" (11mm) of precipitation. Memphis's weather, upon September's arrival, documents an average high-temperature of a warm 83.3°F (28.5°C), nearly identical to the prior month.
• Knoxville - September »
  The month with the least rainfall in Knoxville is September, when the rain falls for 11.3 days and typically collects 1.5" (38mm) of precipitation. September in Knoxville welcomes fall with open arms, marking a significant drop in temperatures compared to August.
• Chattanooga - September »
  In Chattanooga, during September, the rain falls for 12.5 days and regularly aggregates up to 2.56" (65mm) of precipitation. On the last day of September, in Chattanooga, sunrise is at 7:35 am and sunset at 7:26 pm EDT.
• Clarksville - September »
  The month with the least rainfall in Clarksville is September, when the rain falls for 13.6 days and typically collects 1.93" (49mm) of precipitation. In Clarksville in September, during 13.6 rainfall days, 1.93" (49mm) of precipitation is typically accumulated.
• Murfreesboro - September »
  The month with the least rainfall in Murfreesboro is September, when the rain falls for 8 days and typically collects 0.39" (10mm) of precipitation. The month with the least rainfall in Murfreesboro is September, when the rain falls for 8 days and typically collects 0.39" (10mm) of precipitation.
• Franklin - September »
  September and November are months with the least rain in Franklin when the rain falls for 13.6 days and typically aggregates up to 2.36" (60mm) of rain. On the first day of September in Franklin sunrise is at 6:19 am and sunset at 7:14 pm.
• Jackson - September »
  September welcomes the autumn season in Jackson featuring a gradually cooling temperature with highs resting at 82.9°F (28.3°C). In Jackson, in September, it is raining for 8.9 days, with typically 0.67" (17mm) of accumulated precipitation.
• Johnson City - September »
  The month with the least rainfall in Johnson City is September, when the rain falls for 15.5 days and typically collects 1.77" (45mm) of precipitation. In Johnson City in September, during 15.5 rainfall days, 1.77" (45mm) of precipitation is typically accumulated.
• Bartlett - September »
  September brings a subtle change to Bartlett's weather scene as summer warmly greets the advent of autumn. In Bartlett, during September, the rain falls for 11 days and regularly aggregates up to 1.14" (29mm) of precipitation.
• Hendersonville - September »
  In September, in Hendersonville the rain falls for 14.6 days. On the first day of September in Hendersonville, sunrise is at 6:18 am and sunset at 7:13 pm.
• Kingsport - September »
  The month with the least rainfall in Kingsport is September, when the rain falls for 11.3 days and typically collects 0.98" (25mm) of precipitation. In Kingsport, Tennessee, in September, during 11.3 rainfall days, 0.98" (25mm) of precipitation is typically accumulated.