Hazel, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 48.3 °F (low) to 68.4 °F (high). Annual precipitation averages 55.5 Inches. Hazel is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 27.5 °F | 44.9 °F | 4.21 in. |
| February | 30.2 °F | 49.4 °F | 4.61 in. |
| March | 38.0 °F | 59.2 °F | 5.27 in. |
| April | 47.6 °F | 69.5 °F | 5.17 in. |
| May | 57.5 °F | 77.5 °F | 5.65 in. |
| June | 65.8 °F | 85.0 °F | 5.12 in. |
| July | 69.0 °F | 88.0 °F | 4.47 in. |
| August | 67.2 °F | 88.1 °F | 3.57 in. |
| September | 59.9 °F | 82.0 °F | 3.85 in. |
| October | 48.1 °F | 70.8 °F | 3.85 in. |
| November | 37.9 °F | 58.4 °F | 4.4 in. |
| December | 30.9 °F | 48.1 °F | 5.32 in. |
| Annual | 48.3 °F | 68.4 °F | 55.49 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |