Bay Springs, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 52.4 °F (low) to 76 °F (high). Annual precipitation averages 59.6 Inches. Bay Springs 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 | 34.7 °F | 57.5 °F | 5.76 in. |
| February | 37.9 °F | 61.9 °F | 5.43 in. |
| March | 44.3 °F | 69.3 °F | 6.09 in. |
| April | 51.1 °F | 76.2 °F | 5.63 in. |
| May | 59.8 °F | 83.0 °F | 4.17 in. |
| June | 67.4 °F | 89.3 °F | 5.48 in. |
| July | 69.9 °F | 91.4 °F | 5.32 in. |
| August | 69.0 °F | 91.1 °F | 4.56 in. |
| September | 63.7 °F | 87.1 °F | 3.74 in. |
| October | 51.9 °F | 78.1 °F | 3.32 in. |
| November | 41.9 °F | 67.2 °F | 4.53 in. |
| December | 37.0 °F | 59.6 °F | 5.52 in. |
| Annual | 52.4 °F | 76 °F | 59.55 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 | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |