Bells, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49.8 °F (low) to 70 °F (high). Annual precipitation averages 54.6 Inches. Bells is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 29.3 °F | 46.9 °F | 4.1 in. |
| February | 32.5 °F | 51.6 °F | 4.69 in. |
| March | 40.0 °F | 60.6 °F | 5.35 in. |
| April | 49.2 °F | 71.0 °F | 5.17 in. |
| May | 59.1 °F | 79.0 °F | 5.68 in. |
| June | 67.1 °F | 86.5 °F | 4.23 in. |
| July | 70.3 °F | 89.3 °F | 4.07 in. |
| August | 68.2 °F | 88.8 °F | 3.59 in. |
| September | 61.0 °F | 83.2 °F | 3.88 in. |
| October | 49.0 °F | 72.8 °F | 3.92 in. |
| November | 39.1 °F | 60.3 °F | 4.54 in. |
| December | 32.4 °F | 50.2 °F | 5.39 in. |
| Annual | 49.8 °F | 70 °F | 54.61 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |