Ethridge, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 47.8 °F (low) to 69.7 °F (high). Annual precipitation averages 59.5 Inches. Ethridge 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 | 28.7 °F | 48.4 °F | 4.81 in. |
| February | 31.4 °F | 52.6 °F | 5.3 in. |
| March | 37.9 °F | 61.4 °F | 5.69 in. |
| April | 46.6 °F | 71.0 °F | 5.49 in. |
| May | 56.3 °F | 77.8 °F | 5.44 in. |
| June | 63.5 °F | 84.4 °F | 4.8 in. |
| July | 67.1 °F | 87.9 °F | 4.94 in. |
| August | 65.8 °F | 87.5 °F | 4.5 in. |
| September | 59.2 °F | 82.6 °F | 4.48 in. |
| October | 47.8 °F | 71.9 °F | 3.84 in. |
| November | 37.7 °F | 60.4 °F | 4.17 in. |
| December | 31.3 °F | 50.4 °F | 5.99 in. |
| Annual | 47.8 °F | 69.7 °F | 59.45 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 7b : 5°F to 10°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |