Nebo, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 47.3 °F (low) to 68.7 °F (high). Annual precipitation averages 49.6 Inches. Nebo is located in USDA Plant Hardiness Zone 7a. 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 | 26.0 °F | 43.8 °F | 3.68 in. |
| February | 28.9 °F | 48.7 °F | 3.88 in. |
| March | 36.8 °F | 58.2 °F | 4.81 in. |
| April | 46.4 °F | 70.2 °F | 4.95 in. |
| May | 56.9 °F | 78.5 °F | 5.12 in. |
| June | 65.0 °F | 86.2 °F | 4.44 in. |
| July | 68.4 °F | 89.2 °F | 4.55 in. |
| August | 66.4 °F | 88.5 °F | 2.88 in. |
| September | 58.9 °F | 83.3 °F | 3.27 in. |
| October | 47.1 °F | 71.8 °F | 3.68 in. |
| November | 36.7 °F | 58.3 °F | 3.95 in. |
| December | 29.7 °F | 47.6 °F | 4.36 in. |
| Annual | 47.3 °F | 68.7 °F | 49.57 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 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |