Dundarrach, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51 °F (low) to 73.2 °F (high). Annual precipitation averages 48 Inches. Dundarrach is located in USDA Plant Hardiness Zone 8a. 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 | 31.8 °F | 53.8 °F | 3.61 in. |
| February | 33.8 °F | 57.3 °F | 3.17 in. |
| March | 40.4 °F | 65.0 °F | 3.68 in. |
| April | 49.5 °F | 74.2 °F | 3.38 in. |
| May | 58.7 °F | 81.2 °F | 3.46 in. |
| June | 67.3 °F | 87.7 °F | 4.77 in. |
| July | 71.0 °F | 90.8 °F | 4.87 in. |
| August | 69.5 °F | 89.0 °F | 5.06 in. |
| September | 63.7 °F | 83.8 °F | 5.88 in. |
| October | 51.5 °F | 74.5 °F | 3.27 in. |
| November | 40.3 °F | 64.6 °F | 3.4 in. |
| December | 34.7 °F | 56.8 °F | 3.41 in. |
| Annual | 51 °F | 73.2 °F | 47.96 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 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |