Russellville, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 46.8 °F (low) to 68.1 °F (high). Annual precipitation averages 53.4 Inches. Russellville 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 26.3 °F | 44.2 °F | 3.85 in. |
| February | 29.2 °F | 49.0 °F | 4.43 in. |
| March | 36.2 °F | 58.1 °F | 4.76 in. |
| April | 45.7 °F | 68.8 °F | 5.19 in. |
| May | 55.7 °F | 77.1 °F | 5.48 in. |
| June | 64.3 °F | 85.4 °F | 4.56 in. |
| July | 67.8 °F | 88.6 °F | 4.42 in. |
| August | 65.6 °F | 87.5 °F | 3.98 in. |
| September | 58.4 °F | 81.7 °F | 4.08 in. |
| October | 46.9 °F | 71.1 °F | 3.78 in. |
| November | 36.1 °F | 58.2 °F | 4.0 in. |
| December | 29.8 °F | 47.8 °F | 4.88 in. |
| Annual | 46.8 °F | 68.1 °F | 53.41 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| 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 | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |