Jackson, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 43.7 °F (low) to 67.6 °F (high). Annual precipitation averages 48.9 Inches. Jackson is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 24.3 °F | 44.5 °F | 3.63 in. |
| February | 25.9 °F | 48.6 °F | 3.55 in. |
| March | 32.3 °F | 58.2 °F | 4.52 in. |
| April | 41.3 °F | 69.3 °F | 4.39 in. |
| May | 51.8 °F | 76.5 °F | 4.78 in. |
| June | 60.0 °F | 83.9 °F | 4.88 in. |
| July | 64.5 °F | 86.5 °F | 5.28 in. |
| August | 63.7 °F | 85.7 °F | 3.89 in. |
| September | 56.6 °F | 80.6 °F | 3.47 in. |
| October | 43.4 °F | 70.5 °F | 2.92 in. |
| November | 32.8 °F | 58.6 °F | 3.13 in. |
| December | 27.8 °F | 48.3 °F | 4.45 in. |
| Annual | 43.7 °F | 67.6 °F | 48.89 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |