Shepherdsville, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 47.5 °F (low) to 68.2 °F (high). Annual precipitation averages 50.5 Inches. Shepherdsville is located in USDA Plant Hardiness Zone 7a. 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 | 26.5 °F | 43.6 °F | 3.66 in. |
| February | 29.1 °F | 48.0 °F | 3.78 in. |
| March | 36.5 °F | 57.8 °F | 4.78 in. |
| April | 46.5 °F | 69.4 °F | 4.91 in. |
| May | 56.5 °F | 77.8 °F | 5.37 in. |
| June | 64.5 °F | 85.9 °F | 4.86 in. |
| July | 68.2 °F | 88.7 °F | 4.18 in. |
| August | 66.8 °F | 88.0 °F | 3.54 in. |
| September | 59.7 °F | 82.5 °F | 3.51 in. |
| October | 47.9 °F | 71.3 °F | 3.87 in. |
| November | 37.5 °F | 57.8 °F | 3.62 in. |
| December | 30.7 °F | 47.2 °F | 4.42 in. |
| Annual | 47.5 °F | 68.2 °F | 50.5 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 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |