Northlake, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51.4 °F (low) to 72.9 °F (high). Annual precipitation averages 50.4 Inches. Northlake 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 | 32.8 °F | 53.4 °F | 4.54 in. |
| February | 35.4 °F | 57.1 °F | 4.27 in. |
| March | 41.7 °F | 64.8 °F | 4.64 in. |
| April | 49.6 °F | 73.5 °F | 4.02 in. |
| May | 58.6 °F | 80.7 °F | 3.88 in. |
| June | 66.8 °F | 87.5 °F | 4.27 in. |
| July | 70.2 °F | 91.0 °F | 4.22 in. |
| August | 69.4 °F | 89.1 °F | 4.64 in. |
| September | 63.6 °F | 83.8 °F | 3.53 in. |
| October | 51.7 °F | 74.2 °F | 3.38 in. |
| November | 40.9 °F | 63.7 °F | 4.07 in. |
| December | 35.6 °F | 55.9 °F | 4.94 in. |
| Annual | 51.4 °F | 72.9 °F | 50.4 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 |