Caledonia, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51 °F (low) to 74.2 °F (high). Annual precipitation averages 57.1 Inches. Caledonia 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 | 32.0 °F | 53.5 °F | 5.29 in. |
| February | 35.1 °F | 58.0 °F | 5.41 in. |
| March | 42.1 °F | 66.5 °F | 5.25 in. |
| April | 49.8 °F | 74.6 °F | 5.75 in. |
| May | 59.1 °F | 82.2 °F | 4.75 in. |
| June | 67.0 °F | 88.6 °F | 4.4 in. |
| July | 70.3 °F | 91.6 °F | 5.17 in. |
| August | 69.2 °F | 91.3 °F | 4.09 in. |
| September | 62.5 °F | 86.6 °F | 3.45 in. |
| October | 50.4 °F | 76.6 °F | 3.58 in. |
| November | 39.5 °F | 64.6 °F | 4.35 in. |
| December | 34.6 °F | 55.9 °F | 5.61 in. |
| Annual | 51 °F | 74.2 °F | 57.1 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 |