Troy, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.6 °F (low) to 74 °F (high). Annual precipitation averages 46.5 Inches. Troy is located in USDA Plant Hardiness Zone 8b. 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 | 32.5 °F | 54.8 °F | 4.12 in. |
| February | 34.7 °F | 58.3 °F | 3.88 in. |
| March | 40.7 °F | 66.3 °F | 4.51 in. |
| April | 49.0 °F | 74.8 °F | 3.22 in. |
| May | 57.9 °F | 82.0 °F | 3.26 in. |
| June | 66.1 °F | 88.2 °F | 4.48 in. |
| July | 69.6 °F | 91.4 °F | 4.03 in. |
| August | 68.6 °F | 90.1 °F | 4.3 in. |
| September | 62.8 °F | 84.9 °F | 3.66 in. |
| October | 50.9 °F | 75.5 °F | 3.1 in. |
| November | 39.9 °F | 65.2 °F | 3.57 in. |
| December | 35.0 °F | 56.9 °F | 4.35 in. |
| Annual | 50.6 °F | 74 °F | 46.48 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 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |