Radcliff, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 45.6 °F (low) to 66.3 °F (high). Annual precipitation averages 50.3 Inches. Radcliff 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 | 24.6 °F | 42.1 °F | 3.67 in. |
| February | 27.4 °F | 46.8 °F | 3.75 in. |
| March | 34.6 °F | 56.1 °F | 4.81 in. |
| April | 44.5 °F | 67.2 °F | 4.89 in. |
| May | 54.8 °F | 75.7 °F | 5.49 in. |
| June | 62.9 °F | 83.5 °F | 4.61 in. |
| July | 66.5 °F | 86.4 °F | 4.27 in. |
| August | 64.7 °F | 85.9 °F | 3.43 in. |
| September | 57.5 °F | 80.3 °F | 3.53 in. |
| October | 45.7 °F | 69.2 °F | 3.72 in. |
| November | 35.1 °F | 56.4 °F | 3.62 in. |
| December | 28.5 °F | 45.8 °F | 4.47 in. |
| Annual | 45.6 °F | 66.3 °F | 50.26 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 | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |