Bardstown, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 45.5 °F (low) to 67 °F (high). Annual precipitation averages 50.8 Inches. Bardstown 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 | 25.0 °F | 43.4 °F | 3.63 in. |
| February | 27.9 °F | 47.4 °F | 3.85 in. |
| March | 34.6 °F | 56.8 °F | 4.8 in. |
| April | 44.1 °F | 67.6 °F | 4.74 in. |
| May | 54.2 °F | 76.7 °F | 5.39 in. |
| June | 63.0 °F | 84.6 °F | 5.06 in. |
| July | 66.3 °F | 86.9 °F | 4.42 in. |
| August | 64.1 °F | 86.5 °F | 3.48 in. |
| September | 57.1 °F | 81.1 °F | 3.67 in. |
| October | 45.9 °F | 69.8 °F | 3.76 in. |
| November | 35.2 °F | 56.9 °F | 3.56 in. |
| December | 29.0 °F | 46.8 °F | 4.44 in. |
| Annual | 45.5 °F | 67 °F | 50.8 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 6b : -5°F to 0°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |