Shepardsville, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.4 °C (low) to 17.8 °C (high). Annual precipitation averages 1097.3 Millimeters. Shepardsville is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.6 °C | 2.5 °C | 75.18 mm |
| February | -4.8 °C | 5.3 °C | 65.28 mm |
| March | 0.3 °C | 11.4 °C | 84.33 mm |
| April | 6.2 °C | 18.3 °C | 118.62 mm |
| May | 12.1 °C | 24.1 °C | 114.05 mm |
| June | 17 °C | 28.7 °C | 124.21 mm |
| July | 18.7 °C | 30.2 °C | 107.7 mm |
| August | 17.4 °C | 29.7 °C | 77.72 mm |
| September | 13.1 °C | 26.7 °C | 78.49 mm |
| October | 6.7 °C | 19.9 °C | 94.74 mm |
| November | 0.9 °C | 11.7 °C | 84.84 mm |
| December | -3.7 °C | 5.1 °C | 72.14 mm |
| Annual | 6.4 °C | 17.8 °C | 1097.3 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |