Mount Olive, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.6 °C (low) to 22.5 °C (high). Annual precipitation averages 1281.4 Millimeters. Mount Olive is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 0.3 °C | 11.9 °C | 91.19 mm |
| February | 1.3 °C | 13.7 °C | 80.26 mm |
| March | 4.7 °C | 17.8 °C | 94.49 mm |
| April | 9.7 °C | 23 °C | 86.11 mm |
| May | 14.8 °C | 26.8 °C | 103.12 mm |
| June | 19.3 °C | 30.5 °C | 126.24 mm |
| July | 21.4 °C | 32 °C | 151.64 mm |
| August | 20.4 °C | 30.9 °C | 140.72 mm |
| September | 17.5 °C | 28.2 °C | 159.26 mm |
| October | 10.6 °C | 23.3 °C | 82.8 mm |
| November | 4.9 °C | 17.9 °C | 83.06 mm |
| December | 2 °C | 13.7 °C | 82.55 mm |
| Annual | 10.6 °C | 22.5 °C | 1281.44 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 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 | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |