Russell Springs, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.6 °C (low) to 19.1 °C (high). Annual precipitation averages 1438.4 Millimeters. Russell Springs 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -3.6 °C | 6.5 °C | 119.63 mm |
| February | -1.9 °C | 8.9 °C | 118.62 mm |
| March | 1.6 °C | 14.1 °C | 137.67 mm |
| April | 6.9 °C | 19.7 °C | 126.75 mm |
| May | 12.2 °C | 23.9 °C | 133.35 mm |
| June | 16.8 °C | 27.8 °C | 130.56 mm |
| July | 18.9 °C | 29.6 °C | 132.59 mm |
| August | 17.7 °C | 29.3 °C | 99.82 mm |
| September | 14 °C | 26.6 °C | 110.49 mm |
| October | 8.1 °C | 20.6 °C | 87.38 mm |
| November | 1.4 °C | 14.1 °C | 98.55 mm |
| December | -1.4 °C | 8.6 °C | 143 mm |
| Annual | 7.6 °C | 19.1 °C | 1438.41 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |