Speed, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.1 °F (low) to 71.3 °F (high). Annual precipitation averages 48.8 Inches. Speed 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 | 31.2 °F | 51.8 °F | 3.66 in. |
| February | 32.8 °F | 55.0 °F | 3.02 in. |
| March | 39.2 °F | 62.0 °F | 3.96 in. |
| April | 48.5 °F | 71.9 °F | 3.53 in. |
| May | 57.8 °F | 78.9 °F | 3.53 in. |
| June | 66.2 °F | 86.3 °F | 4.69 in. |
| July | 70.3 °F | 89.5 °F | 5.18 in. |
| August | 68.5 °F | 87.5 °F | 5.28 in. |
| September | 62.7 °F | 82.2 °F | 5.83 in. |
| October | 50.4 °F | 73.0 °F | 3.47 in. |
| November | 39.6 °F | 63.0 °F | 3.25 in. |
| December | 34.1 °F | 54.8 °F | 3.36 in. |
| Annual | 50.1 °F | 71.3 °F | 48.76 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 7b : 5°F to 10°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |