McFarlan, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.2 °C (low) to 23 °C (high). Annual precipitation averages 1212.1 Millimeters. 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 | -0.2 °C | 12.3 °C | 93.73 mm |
| February | 0.9 °C | 14.3 °C | 80.52 mm |
| March | 4.4 °C | 18.6 °C | 97.28 mm |
| April | 9.5 °C | 23.6 °C | 85.6 mm |
| May | 14.5 °C | 27.5 °C | 88.14 mm |
| June | 19.1 °C | 31.1 °C | 110.49 mm |
| July | 21.2 °C | 32.7 °C | 129.03 mm |
| August | 20.5 °C | 31.7 °C | 128.02 mm |
| September | 17.1 °C | 28.8 °C | 126.75 mm |
| October | 10.2 °C | 23.7 °C | 92.71 mm |
| November | 4.2 °C | 18.2 °C | 83.31 mm |
| December | 1.3 °C | 13.8 °C | 96.52 mm |
| Annual | 10.2 °C | 23 °C | 1212.1 mm |
| 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 : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |