McFarlan, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.4 °F (low) to 73.4 °F (high). Annual precipitation averages 47.7 Inches. McFarlan 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 | 31.6 °F | 54.1 °F | 3.69 in. |
| February | 33.6 °F | 57.7 °F | 3.17 in. |
| March | 39.9 °F | 65.5 °F | 3.83 in. |
| April | 49.1 °F | 74.5 °F | 3.37 in. |
| May | 58.1 °F | 81.5 °F | 3.47 in. |
| June | 66.4 °F | 88.0 °F | 4.35 in. |
| July | 70.2 °F | 90.9 °F | 5.08 in. |
| August | 68.9 °F | 89.1 °F | 5.04 in. |
| September | 62.7 °F | 83.8 °F | 4.99 in. |
| October | 50.3 °F | 74.6 °F | 3.65 in. |
| November | 39.5 °F | 64.7 °F | 3.28 in. |
| December | 34.4 °F | 56.8 °F | 3.8 in. |
| Annual | 50.4 °F | 73.4 °F | 47.72 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 | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |