Elm City, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.2 °C (low) to 21.9 °C (high). Annual precipitation averages 1206.3 Millimeters. Elm City 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 | -0.4 °C | 11.1 °C | 90.93 mm |
| February | 0.4 °C | 12.9 °C | 73.15 mm |
| March | 4.1 °C | 16.9 °C | 102.11 mm |
| April | 9.3 °C | 22.1 °C | 90.17 mm |
| May | 14.4 °C | 26.1 °C | 86.87 mm |
| June | 19.2 °C | 30.2 °C | 107.19 mm |
| July | 21.3 °C | 32.1 °C | 125.48 mm |
| August | 20.4 °C | 30.9 °C | 132.08 mm |
| September | 17.1 °C | 27.9 °C | 144.02 mm |
| October | 10.4 °C | 22.7 °C | 86.11 mm |
| November | 4.4 °C | 17.4 °C | 82.3 mm |
| December | 1.2 °C | 12.8 °C | 85.85 mm |
| Annual | 10.2 °C | 21.9 °C | 1206.26 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 |