McIntosh, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 53.2 °F (low) to 77.1 °F (high). Annual precipitation averages 63 Inches. McIntosh is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 34.8 °F | 59.7 °F | 6.02 in. |
| February | 38.4 °F | 63.6 °F | 5.22 in. |
| March | 44.1 °F | 70.8 °F | 5.6 in. |
| April | 50.6 °F | 77.4 °F | 4.77 in. |
| May | 60.9 °F | 84.4 °F | 4.68 in. |
| June | 66.8 °F | 89.8 °F | 6.28 in. |
| July | 71.5 °F | 90.8 °F | 6.34 in. |
| August | 70.9 °F | 90.6 °F | 5.58 in. |
| September | 66.8 °F | 86.8 °F | 4.71 in. |
| October | 53.3 °F | 79.8 °F | 3.52 in. |
| November | 43.4 °F | 69.7 °F | 4.5 in. |
| December | 37.1 °F | 62.1 °F | 5.73 in. |
| Annual | 53.2 °F | 77.1 °F | 62.95 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| 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 | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |