Average Rainfall for Tennessee in September
The tables below give monthly averages for rainfall during September at cities and towns in Tennessee.
Each place has a total for the amount of precipitation it usually receives this month. There is also a count of the number of days with wet weather, when precipitation amounts to 0.01 inches (0.25 millimetres) or more.
The rainfall totals are averages based on weather data collected from 1991 to 2020 for the US National Centers for Environmental Information.
You can jump to a separate table for each region of the state: Eastern, Middle and Western Tennessee.
Eastern Tennessee
| Days | Place | Inches | Millimetres |
|---|---|---|---|
| 8 | Athens | 5.2 | 132 |
| 8 | Bristol | 2.8 | 72 |
| 8 | Chattanooga | 4.2 | 107 |
| 9 | Cleveland | 4.7 | 119 |
| 9 | Crossville | 4.1 | 105 |
| 9 | Dayton | 4.8 | 122 |
| 11 | Gatlinburg | 4.3 | 110 |
| 9 | Greeneville | 3.0 | 77 |
| 9 | Kingsport | 3.0 | 76 |
| 8 | Knoxville | 3.5 | 89 |
| 8 | Lookout Mountain | 4.9 | 125 |
| 8 | Morristown | 3.1 | 79 |
| 8 | Mountain City | 3.3 | 83 |
| 8 | Oak Ridge | 4.1 | 105 |
| 9 | Oneida | 4.0 | 101 |
| 8 | Sevierville | 3.6 | 90 |
Middle Tennessee
| Days | Place | Inches | Millimetres |
|---|---|---|---|
| 6 | Cheatham Lake Dam | 3.8 | 96 |
| 9 | Clarksville | 3.4 | 85 |
| 8 | Columbia | 4.3 | 108 |
| 9 | Cookeville | 4.5 | 114 |
| 7 | Dover | 3.6 | 90 |
| 9 | Monteagle | 4.6 | 117 |
| 9 | Murfreesboro | 4.0 | 103 |
| 8 | Nashville | 3.8 | 97 |
| 8 | Shelbyville | 4.2 | 107 |
| 8 | Tullahoma | 4.4 | 110 |
Western Tennessee
| Days | Place | Inches | Millimetres |
|---|---|---|---|
| 7 | Dyersburg | 2.6 | 67 |
| 8 | Jackson | 4.1 | 103 |
| 8 | Martin | 3.8 | 96 |
| 7 | Memphis | 3.0 | 77 |
| 7 | Savannah | 4.3 | 109 |
Reference
NOAA National Centers for Environmental Information (NCEI). Climate Normals.