| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 29°F | 52°F | 39°F | 4.2" |
| February | 31°F | 54°F | 42°F | 3.4" |
| March | 39°F | 65°F | 52°F | 4.1" |
| April | 49°F | 75°F | 62°F | 5.6" |
| May | 56°F | 82°F | 69°F | 5.1" |
| June | 66°F | 90°F | 78°F | 3.9" |
| July | 69°F | 92°F | 80°F | 5.0" |
| August | 69°F | 92°F | 79°F | 4.5" |
| September | 61°F | 86°F | 73°F | 4.0" |
| October | 49°F | 75°F | 61°F | 4.0" |
| November | 38°F | 64°F | 50°F | 3.8" |
| December | 33°F | 54°F | 43°F | 5.1" |
| Index | Germantown | Nashville | Tennessee |
| Air quality index | 45 | 45 | 76 |
| Pollution index | 14,929,800 | 14,929,800 | 2,454,916 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 229 |
| Days with moderate air quality | 135 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.020% |
| Benzene | 0.170% |
| Carbon Tetrachloride | 0.040% |
| Lead | 0.050% |
| Mercury | 0.030% |
| City | Population | Air Quality Index | National Avg. |
| Pleasant View, TN | 4,660 | 40 | 20.0% |
| Pegram, TN | 2,492 | 45 | 10.0% |
| Oak Hill, TN | 4,536 | 45 | 10.0% |
| Smyrna, TN | 50,820 | 45 | 10.0% |
| Shackle Island, TN | 4,010 | 45 | 10.0% |
| Nashville, TN | 667,070 | 45 | 10.0% |
| City | Population | Air Quality Index | National Avg. |
| Detroit, MI | 672,351 | 56 | 12.0% |
| El Paso, TX | 679,879 | 53 | 6.0% |
| Memphis, TN | 650,910 | 45 | 10.0% |
| Portland, OR | 650,380 | 38 | 24.0% |
| Oklahoma City, OK | 649,821 | 48 | 4.0% |
| Nashville, TN | 667,070 | 45 | 10.0% |
Here are the best places to live in Tennessee
Check out the 10 most dangerous cities in Tennessee
See the best places to live in Nashville
Safest States In The US