Whitesboro, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49.8 °F (low) to 70.4 °F (high). Annual precipitation averages 57.2 Inches. Whitesboro is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 31.0 °F | 49.6 °F | 5.39 in. |
| February | 33.8 °F | 54.0 °F | 5.35 in. |
| March | 40.6 °F | 62.4 °F | 5.52 in. |
| April | 48.3 °F | 70.9 °F | 5.26 in. |
| May | 57.4 °F | 78.3 °F | 4.68 in. |
| June | 65.4 °F | 85.4 °F | 4.73 in. |
| July | 68.5 °F | 88.0 °F | 4.45 in. |
| August | 67.5 °F | 87.6 °F | 3.93 in. |
| September | 61.4 °F | 82.7 °F | 4.18 in. |
| October | 49.9 °F | 72.6 °F | 3.47 in. |
| November | 39.3 °F | 60.9 °F | 4.49 in. |
| December | 34.1 °F | 52.6 °F | 5.71 in. |
| Annual | 49.8 °F | 70.4 °F | 57.16 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |