Watauga, Tennessee has a Temperate Oceanic Climate climate (Köppen classification: Cfb). Average annual temperatures range from 45.7 °F (low) to 68.1 °F (high). Annual precipitation averages 45.1 Inches. Watauga is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 26.8 °F | 46.3 °F | 3.54 in. |
| February | 29.3 °F | 50.4 °F | 3.7 in. |
| March | 35.9 °F | 59.1 °F | 4.01 in. |
| April | 44.2 °F | 69.7 °F | 4.05 in. |
| May | 53.5 °F | 77.2 °F | 4.05 in. |
| June | 61.5 °F | 83.4 °F | 3.96 in. |
| July | 65.4 °F | 86.2 °F | 5.16 in. |
| August | 64.0 °F | 85.6 °F | 4.2 in. |
| September | 57.7 °F | 80.9 °F | 2.73 in. |
| October | 45.8 °F | 70.6 °F | 2.58 in. |
| November | 35.0 °F | 58.9 °F | 3.03 in. |
| December | 29.8 °F | 49.4 °F | 4.13 in. |
| Annual | 45.7 °F | 68.1 °F | 45.14 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| 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 | Moderate Drought |
| Köppen Climate Classification | Cfb - Temperate Oceanic Climate |