Saltillo, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51.1 °F (low) to 73.6 °F (high). Annual precipitation averages 58.5 Inches. Saltillo 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 | 31.6 °F | 51.6 °F | 5.04 in. |
| February | 34.6 °F | 56.3 °F | 5.15 in. |
| March | 41.8 °F | 65.3 °F | 5.37 in. |
| April | 49.9 °F | 74.5 °F | 5.6 in. |
| May | 59.4 °F | 82.2 °F | 5.46 in. |
| June | 67.4 °F | 88.9 °F | 4.93 in. |
| July | 70.8 °F | 91.8 °F | 4.47 in. |
| August | 69.4 °F | 91.8 °F | 4.02 in. |
| September | 62.6 °F | 86.5 °F | 4.0 in. |
| October | 50.3 °F | 75.9 °F | 3.97 in. |
| November | 40.0 °F | 63.5 °F | 4.32 in. |
| December | 34.8 °F | 54.4 °F | 6.12 in. |
| Annual | 51.1 °F | 73.6 °F | 58.45 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 |