Spartanburg, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49.7 °F (low) to 72.5 °F (high). Annual precipitation averages 50.3 Inches. Spartanburg is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 31.6 °F | 52.8 °F | 4.35 in. |
| February | 33.8 °F | 56.8 °F | 3.83 in. |
| March | 40.3 °F | 64.4 °F | 4.74 in. |
| April | 48.0 °F | 73.5 °F | 4.31 in. |
| May | 56.9 °F | 80.7 °F | 3.62 in. |
| June | 65.0 °F | 87.0 °F | 4.5 in. |
| July | 68.7 °F | 90.6 °F | 3.9 in. |
| August | 67.6 °F | 88.5 °F | 4.63 in. |
| September | 61.8 °F | 83.2 °F | 4.15 in. |
| October | 49.7 °F | 73.7 °F | 3.87 in. |
| November | 39.2 °F | 63.2 °F | 3.79 in. |
| December | 34.1 °F | 55.1 °F | 4.57 in. |
| Annual | 49.7 °F | 72.5 °F | 50.26 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| 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 | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |