Calhoun City, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.8 °F (low) to 73.5 °F (high). Annual precipitation averages 58 Inches. Calhoun City 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 | 31.9 °F | 53.0 °F | 5.01 in. |
| February | 34.9 °F | 57.6 °F | 5.23 in. |
| March | 41.9 °F | 66.1 °F | 5.32 in. |
| April | 49.5 °F | 74.6 °F | 6.2 in. |
| May | 58.8 °F | 81.1 °F | 5.61 in. |
| June | 66.7 °F | 87.2 °F | 5.13 in. |
| July | 70.1 °F | 90.4 °F | 4.26 in. |
| August | 69.0 °F | 90.2 °F | 4.06 in. |
| September | 62.1 °F | 85.6 °F | 3.6 in. |
| October | 50.1 °F | 76.2 °F | 3.52 in. |
| November | 40.0 °F | 64.5 °F | 4.23 in. |
| December | 34.2 °F | 55.5 °F | 5.85 in. |
| Annual | 50.8 °F | 73.5 °F | 58.02 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 | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |