New Smyrna Beach, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 63.3 °F (low) to 80.4 °F (high). Annual precipitation averages 53.8 Inches. New Smyrna Beach is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 49.4 °F | 69.1 °F | 2.95 in. |
| February | 51.7 °F | 71.3 °F | 2.3 in. |
| March | 55.8 °F | 75.0 °F | 2.96 in. |
| April | 61.3 °F | 79.7 °F | 2.67 in. |
| May | 67.2 °F | 84.3 °F | 4.47 in. |
| June | 72.3 °F | 87.7 °F | 6.43 in. |
| July | 74.0 °F | 89.8 °F | 5.58 in. |
| August | 74.5 °F | 89.6 °F | 6.22 in. |
| September | 73.2 °F | 87.6 °F | 9.72 in. |
| October | 67.5 °F | 82.7 °F | 4.93 in. |
| November | 59.5 °F | 76.5 °F | 2.8 in. |
| December | 53.2 °F | 71.4 °F | 2.8 in. |
| Annual | 63.3 °F | 80.4 °F | 53.83 in. |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 10a : 30°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 9b : 25°F to 20°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |