Chaplin, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 45.1 °F (low) to 66.6 °F (high). Annual precipitation averages 50.3 Inches. Chaplin 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 | 24.2 °F | 42.4 °F | 3.58 in. |
| February | 27.1 °F | 46.7 °F | 3.81 in. |
| March | 34.0 °F | 56.0 °F | 4.78 in. |
| April | 43.8 °F | 67.3 °F | 4.79 in. |
| May | 54.3 °F | 76.1 °F | 5.4 in. |
| June | 62.1 °F | 84.3 °F | 5.1 in. |
| July | 65.8 °F | 87.1 °F | 4.48 in. |
| August | 64.0 °F | 86.7 °F | 3.34 in. |
| September | 57.1 °F | 81.2 °F | 3.77 in. |
| October | 45.7 °F | 69.6 °F | 3.58 in. |
| November | 34.9 °F | 56.4 °F | 3.49 in. |
| December | 28.3 °F | 45.8 °F | 4.19 in. |
| Annual | 45.1 °F | 66.6 °F | 50.31 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 |