Jackson, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 53.9 °F (low) to 75.9 °F (high). Annual precipitation averages 57.3 Inches. Jackson 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 | 36.0 °F | 56.9 °F | 5.44 in. |
| February | 38.7 °F | 61.4 °F | 5.61 in. |
| March | 45.7 °F | 69.1 °F | 5.38 in. |
| April | 52.9 °F | 76.0 °F | 6.22 in. |
| May | 62.0 °F | 83.3 °F | 4.22 in. |
| June | 69.0 °F | 89.2 °F | 4.48 in. |
| July | 71.5 °F | 91.5 °F | 4.99 in. |
| August | 70.8 °F | 91.8 °F | 4.28 in. |
| September | 65.1 °F | 87.4 °F | 3.53 in. |
| October | 53.2 °F | 78.2 °F | 3.3 in. |
| November | 43.3 °F | 67.1 °F | 4.72 in. |
| December | 38.0 °F | 59.3 °F | 5.14 in. |
| Annual | 53.9 °F | 75.9 °F | 57.31 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 30-40 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 | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |