Jeffersonville, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 43.8 °F (low) to 65.8 °F (high). Annual precipitation averages 49.4 Inches. Jeffersonville is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 23.6 °F | 42.2 °F | 3.52 in. |
| February | 26.5 °F | 46.5 °F | 3.57 in. |
| March | 32.9 °F | 55.4 °F | 4.43 in. |
| April | 42.8 °F | 66.7 °F | 4.49 in. |
| May | 52.8 °F | 75.0 °F | 5.18 in. |
| June | 60.7 °F | 82.7 °F | 4.87 in. |
| July | 64.7 °F | 85.7 °F | 5.41 in. |
| August | 62.6 °F | 85.0 °F | 3.61 in. |
| September | 55.4 °F | 79.8 °F | 3.73 in. |
| October | 43.1 °F | 68.3 °F | 3.15 in. |
| November | 33.2 °F | 56.0 °F | 3.22 in. |
| December | 27.7 °F | 45.9 °F | 4.18 in. |
| Annual | 43.8 °F | 65.8 °F | 49.36 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |