Hardinsburg, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 45.3 °F (low) to 66.7 °F (high). Annual precipitation averages 50.8 Inches. Hardinsburg 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 24.3 °F | 42.3 °F | 3.65 in. |
| February | 26.9 °F | 46.8 °F | 3.67 in. |
| March | 34.2 °F | 56.4 °F | 4.74 in. |
| April | 44.3 °F | 67.9 °F | 4.88 in. |
| May | 54.5 °F | 76.1 °F | 5.84 in. |
| June | 62.6 °F | 84.0 °F | 4.69 in. |
| July | 66.6 °F | 87.0 °F | 4.54 in. |
| August | 64.1 °F | 86.2 °F | 3.25 in. |
| September | 57.0 °F | 80.9 °F | 3.54 in. |
| October | 45.8 °F | 70.2 °F | 3.81 in. |
| November | 34.9 °F | 56.7 °F | 3.81 in. |
| December | 28.5 °F | 46.2 °F | 4.38 in. |
| Annual | 45.3 °F | 66.7 °F | 50.8 in. |
| 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 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 |