Etowah, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 47 °F (low) to 70.1 °F (high). Annual precipitation averages 56.6 Inches. Etowah is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 28.0 °F | 48.4 °F | 5.42 in. |
| February | 30.5 °F | 52.8 °F | 4.81 in. |
| March | 37.0 °F | 61.5 °F | 4.98 in. |
| April | 45.2 °F | 70.8 °F | 4.7 in. |
| May | 54.8 °F | 78.6 °F | 4.47 in. |
| June | 63.1 °F | 85.3 °F | 4.6 in. |
| July | 67.2 °F | 88.2 °F | 5.61 in. |
| August | 65.9 °F | 87.7 °F | 4.02 in. |
| September | 59.2 °F | 82.9 °F | 4.48 in. |
| October | 46.6 °F | 72.3 °F | 2.99 in. |
| November | 35.3 °F | 60.7 °F | 4.89 in. |
| December | 31.0 °F | 51.4 °F | 5.64 in. |
| Annual | 47 °F | 70.1 °F | 56.61 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |