Rainsville, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.3 °C (low) to 20.9 °C (high). Annual precipitation averages 1487.7 Millimeters. Rainsville is located in USDA Plant Hardiness Zone 8a. 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 | -1.3 °C | 9.2 °C | 147.07 mm |
| February | 0.6 °C | 11.7 °C | 140.46 mm |
| March | 4.1 °C | 16.3 °C | 141.73 mm |
| April | 8.3 °C | 21.1 °C | 134.11 mm |
| May | 13.4 °C | 25.3 °C | 115.32 mm |
| June | 17.9 °C | 29.3 °C | 121.67 mm |
| July | 19.5 °C | 30.7 °C | 114.55 mm |
| August | 19.1 °C | 30.5 °C | 94.49 mm |
| September | 15.7 °C | 27.8 °C | 112.78 mm |
| October | 9.4 °C | 22.2 °C | 89.92 mm |
| November | 3.6 °C | 15.6 °C | 124.46 mm |
| December | 0.8 °C | 10.9 °C | 151.13 mm |
| Annual | 9.3 °C | 20.9 °C | 1487.69 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |