Parker, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.1 °F (low) to 71.2 °F (high). Annual precipitation averages 53.1 Inches. Parker is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 31.4 °F | 51.9 °F | 4.48 in. |
| February | 33.9 °F | 55.9 °F | 4.04 in. |
| March | 40.5 °F | 63.3 °F | 4.71 in. |
| April | 48.4 °F | 72.0 °F | 4.45 in. |
| May | 57.6 °F | 79.1 °F | 3.93 in. |
| June | 65.4 °F | 85.5 °F | 4.56 in. |
| July | 69.0 °F | 89.3 °F | 4.56 in. |
| August | 68.1 °F | 87.4 °F | 5.22 in. |
| September | 62.3 °F | 81.9 °F | 4.14 in. |
| October | 50.3 °F | 72.1 °F | 4.05 in. |
| November | 39.6 °F | 62.3 °F | 4.1 in. |
| December | 34.4 °F | 54.2 °F | 4.89 in. |
| Annual | 50.1 °F | 71.2 °F | 53.13 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 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 |