Georgetown, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 54 °F (low) to 76.6 °F (high). Annual precipitation averages 60.1 Inches. Georgetown is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 36.4 °F | 57.7 °F | 5.83 in. |
| February | 39.2 °F | 62.5 °F | 5.99 in. |
| March | 46.0 °F | 70.0 °F | 5.75 in. |
| April | 53.0 °F | 76.9 °F | 5.47 in. |
| May | 61.7 °F | 83.8 °F | 4.36 in. |
| June | 68.8 °F | 89.9 °F | 4.83 in. |
| July | 71.1 °F | 92.0 °F | 5.3 in. |
| August | 70.6 °F | 92.1 °F | 5.22 in. |
| September | 65.2 °F | 87.8 °F | 3.71 in. |
| October | 53.5 °F | 78.9 °F | 3.45 in. |
| November | 43.6 °F | 67.8 °F | 4.47 in. |
| December | 38.4 °F | 60.1 °F | 5.68 in. |
| Annual | 54 °F | 76.6 °F | 60.06 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 30-40 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 | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |