Powderly, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 46.3 °F (low) to 68 °F (high). Annual precipitation averages 50.9 Inches. Powderly 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 | 25.7 °F | 43.6 °F | 3.74 in. |
| February | 28.4 °F | 48.2 °F | 3.84 in. |
| March | 35.9 °F | 57.8 °F | 4.61 in. |
| April | 45.4 °F | 68.9 °F | 4.71 in. |
| May | 55.4 °F | 77.3 °F | 5.32 in. |
| June | 64.2 °F | 85.1 °F | 4.69 in. |
| July | 67.5 °F | 88.0 °F | 4.56 in. |
| August | 65.1 °F | 88.1 °F | 3.51 in. |
| September | 57.5 °F | 82.4 °F | 3.62 in. |
| October | 46.0 °F | 71.1 °F | 3.84 in. |
| November | 35.2 °F | 57.8 °F | 3.94 in. |
| December | 29.2 °F | 47.2 °F | 4.51 in. |
| Annual | 46.3 °F | 68 °F | 50.89 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 |