Old Hundred, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.5 °F (low) to 73.1 °F (high). Annual precipitation averages 47.4 Inches. Old Hundred is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 31.4 °F | 53.6 °F | 3.6 in. |
| February | 33.5 °F | 57.2 °F | 3.2 in. |
| March | 40.0 °F | 65.0 °F | 3.62 in. |
| April | 49.3 °F | 74.4 °F | 3.18 in. |
| May | 58.3 °F | 81.3 °F | 3.41 in. |
| June | 66.5 °F | 87.9 °F | 4.58 in. |
| July | 70.3 °F | 90.8 °F | 4.95 in. |
| August | 69.0 °F | 88.8 °F | 4.98 in. |
| September | 62.8 °F | 83.5 °F | 5.36 in. |
| October | 50.5 °F | 74.2 °F | 3.45 in. |
| November | 39.4 °F | 64.2 °F | 3.36 in. |
| December | 34.4 °F | 56.4 °F | 3.66 in. |
| Annual | 50.5 °F | 73.1 °F | 47.35 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |