Cayce, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 48 °F (low) to 69.1 °F (high). Annual precipitation averages 52.9 Inches. Cayce is located in USDA Plant Hardiness Zone 7b. 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 | 27.5 °F | 45.0 °F | 3.97 in. |
| February | 30.3 °F | 49.7 °F | 4.3 in. |
| March | 38.4 °F | 59.5 °F | 4.94 in. |
| April | 47.5 °F | 69.7 °F | 5.35 in. |
| May | 57.8 °F | 78.6 °F | 5.74 in. |
| June | 65.6 °F | 86.5 °F | 4.16 in. |
| July | 69.0 °F | 89.5 °F | 4.11 in. |
| August | 66.8 °F | 88.4 °F | 3.17 in. |
| September | 58.9 °F | 82.8 °F | 3.79 in. |
| October | 47.2 °F | 72.3 °F | 3.84 in. |
| November | 37.2 °F | 58.7 °F | 4.43 in. |
| December | 30.1 °F | 48.4 °F | 5.06 in. |
| Annual | 48 °F | 69.1 °F | 52.86 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 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 |