Gunnison, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 53.4 °F (low) to 72.8 °F (high). Annual precipitation averages 54.4 Inches. Gunnison 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. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 33.9 °F | 51.1 °F | 4.87 in. |
| February | 36.7 °F | 55.6 °F | 5.1 in. |
| March | 44.3 °F | 64.1 °F | 5.17 in. |
| April | 53.1 °F | 73.4 °F | 6.25 in. |
| May | 62.8 °F | 81.4 °F | 5.1 in. |
| June | 70.2 °F | 88.2 °F | 3.69 in. |
| July | 72.8 °F | 90.5 °F | 3.76 in. |
| August | 71.0 °F | 90.6 °F | 3.12 in. |
| September | 64.3 °F | 86.2 °F | 3.12 in. |
| October | 52.7 °F | 75.7 °F | 3.97 in. |
| November | 42.5 °F | 63.2 °F | 4.68 in. |
| December | 36.5 °F | 53.7 °F | 5.6 in. |
| Annual | 53.4 °F | 72.8 °F | 54.43 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| 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 |