Hickory Flat, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49.7 °F (low) to 72.3 °F (high). Annual precipitation averages 57.1 Inches. Hickory Flat 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 | 30.5 °F | 50.7 °F | 4.77 in. |
| February | 33.2 °F | 55.3 °F | 4.85 in. |
| March | 40.4 °F | 64.0 °F | 5.34 in. |
| April | 48.6 °F | 73.2 °F | 5.59 in. |
| May | 58.3 °F | 80.6 °F | 5.11 in. |
| June | 66.2 °F | 87.4 °F | 4.59 in. |
| July | 69.6 °F | 90.4 °F | 4.42 in. |
| August | 67.9 °F | 90.3 °F | 3.79 in. |
| September | 61.2 °F | 85.1 °F | 3.97 in. |
| October | 48.9 °F | 74.8 °F | 3.92 in. |
| November | 38.8 °F | 62.7 °F | 4.42 in. |
| December | 33.3 °F | 53.3 °F | 6.31 in. |
| Annual | 49.7 °F | 72.3 °F | 57.08 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 |