Grimesland, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51.4 °F (low) to 72.1 °F (high). Annual precipitation averages 52.4 Inches. Grimesland is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 32.7 °F | 53.2 °F | 3.7 in. |
| February | 34.4 °F | 56.3 °F | 3.22 in. |
| March | 40.5 °F | 63.3 °F | 3.99 in. |
| April | 49.9 °F | 72.6 °F | 3.55 in. |
| May | 58.9 °F | 79.5 °F | 4.27 in. |
| June | 67.1 °F | 86.5 °F | 4.95 in. |
| July | 71.2 °F | 89.6 °F | 5.63 in. |
| August | 69.3 °F | 87.5 °F | 5.87 in. |
| September | 63.7 °F | 82.6 °F | 6.63 in. |
| October | 51.9 °F | 74.0 °F | 3.82 in. |
| November | 41.4 °F | 64.1 °F | 3.34 in. |
| December | 35.7 °F | 56.2 °F | 3.45 in. |
| Annual | 51.4 °F | 72.1 °F | 52.42 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |