Boyle, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 53.6 °F (low) to 73.5 °F (high). Annual precipitation averages 55.8 Inches. Boyle is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 34.3 °F | 51.5 °F | 5.14 in. |
| February | 37.0 °F | 56.0 °F | 5.07 in. |
| March | 44.5 °F | 64.7 °F | 5.4 in. |
| April | 53.2 °F | 74.0 °F | 5.87 in. |
| May | 62.9 °F | 82.3 °F | 5.41 in. |
| June | 70.2 °F | 88.9 °F | 4.11 in. |
| July | 72.7 °F | 91.1 °F | 3.71 in. |
| August | 71.1 °F | 91.3 °F | 3.15 in. |
| September | 64.4 °F | 87.1 °F | 3.57 in. |
| October | 53.0 °F | 76.7 °F | 3.94 in. |
| November | 42.8 °F | 63.8 °F | 4.6 in. |
| December | 36.8 °F | 54.2 °F | 5.79 in. |
| Annual | 53.6 °F | 73.5 °F | 55.76 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |