Louisburg, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9 °C (low) to 21.8 °C (high). Annual precipitation averages 1185.4 Millimeters. Louisburg is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.6 °C | 10.6 °C | 89.15 mm |
| February | -0.7 °C | 12.6 °C | 72.39 mm |
| March | 2.8 °C | 16.6 °C | 108.2 mm |
| April | 7.9 °C | 22.2 °C | 85.34 mm |
| May | 13.3 °C | 26.1 °C | 91.95 mm |
| June | 18.2 °C | 30 °C | 115.06 mm |
| July | 20.4 °C | 32.2 °C | 114.3 mm |
| August | 19.7 °C | 31.1 °C | 124.71 mm |
| September | 16.2 °C | 27.8 °C | 129.03 mm |
| October | 9.1 °C | 22.6 °C | 84.33 mm |
| November | 3 °C | 16.9 °C | 85.85 mm |
| December | 0.1 °C | 12.3 °C | 85.09 mm |
| Annual | 9 °C | 21.8 °C | 1185.4 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |