Harrodsburg, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 45.4 °F (low) to 66.1 °F (high). Annual precipitation averages 48.8 Inches. Harrodsburg 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 | 24.6 °F | 42.0 °F | 3.61 in. |
| February | 27.3 °F | 46.5 °F | 3.83 in. |
| March | 34.3 °F | 55.5 °F | 4.71 in. |
| April | 43.9 °F | 66.6 °F | 4.51 in. |
| May | 54.6 °F | 75.1 °F | 5.16 in. |
| June | 62.4 °F | 83.6 °F | 5.24 in. |
| July | 66.2 °F | 86.6 °F | 4.62 in. |
| August | 64.2 °F | 85.8 °F | 3.29 in. |
| September | 57.3 °F | 80.5 °F | 3.51 in. |
| October | 46.1 °F | 69.3 °F | 3.07 in. |
| November | 35.0 °F | 56.0 °F | 3.14 in. |
| December | 28.7 °F | 45.7 °F | 4.15 in. |
| Annual | 45.4 °F | 66.1 °F | 48.84 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 |