Mount Pleasant, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50 °F (low) to 71.7 °F (high). Annual precipitation averages 56.3 Inches. Mount Pleasant is located in USDA Plant Hardiness Zone 7b. 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 | 30.1 °F | 49.6 °F | 4.36 in. |
| February | 33.0 °F | 54.4 °F | 4.82 in. |
| March | 40.5 °F | 63.0 °F | 5.7 in. |
| April | 49.1 °F | 72.7 °F | 5.81 in. |
| May | 58.8 °F | 79.9 °F | 5.41 in. |
| June | 66.8 °F | 87.4 °F | 4.37 in. |
| July | 70.2 °F | 89.9 °F | 4.47 in. |
| August | 68.5 °F | 89.9 °F | 3.35 in. |
| September | 61.3 °F | 84.7 °F | 3.72 in. |
| October | 49.3 °F | 74.1 °F | 4.18 in. |
| November | 39.0 °F | 62.2 °F | 4.37 in. |
| December | 33.1 °F | 52.4 °F | 5.74 in. |
| Annual | 50 °F | 71.7 °F | 56.3 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 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |