Georgetown, Indiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 45.7 °F (low) to 66.4 °F (high). Annual precipitation averages 49.6 Inches. Georgetown is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 24.3 °F | 41.6 °F | 3.68 in. |
| February | 26.9 °F | 46.4 °F | 3.49 in. |
| March | 34.6 °F | 56.2 °F | 4.56 in. |
| April | 44.5 °F | 67.7 °F | 5.04 in. |
| May | 54.7 °F | 76.2 °F | 5.32 in. |
| June | 63.1 °F | 83.7 °F | 4.76 in. |
| July | 66.7 °F | 86.9 °F | 4.1 in. |
| August | 65.2 °F | 86.3 °F | 3.3 in. |
| September | 57.8 °F | 80.6 °F | 3.74 in. |
| October | 46.1 °F | 69.2 °F | 3.66 in. |
| November | 35.7 °F | 56.3 °F | 3.68 in. |
| December | 28.6 °F | 45.5 °F | 4.26 in. |
| Annual | 45.7 °F | 66.4 °F | 49.59 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |