McDonald, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51.5 °F (low) to 73.6 °F (high). Annual precipitation averages 48.7 Inches. McDonald 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 | 32.9 °F | 54.7 °F | 3.56 in. |
| February | 35.1 °F | 58.1 °F | 3.3 in. |
| March | 41.2 °F | 65.7 °F | 3.57 in. |
| April | 49.7 °F | 74.5 °F | 3.42 in. |
| May | 58.7 °F | 81.6 °F | 3.65 in. |
| June | 67.4 °F | 87.7 °F | 4.89 in. |
| July | 70.9 °F | 90.4 °F | 5.01 in. |
| August | 69.5 °F | 88.7 °F | 5.48 in. |
| September | 63.9 °F | 83.6 °F | 5.5 in. |
| October | 51.7 °F | 74.9 °F | 3.42 in. |
| November | 41.1 °F | 65.3 °F | 3.28 in. |
| December | 35.6 °F | 57.6 °F | 3.59 in. |
| Annual | 51.5 °F | 73.6 °F | 48.67 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 | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |