Madison, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.4 °F (low) to 73.4 °F (high). Annual precipitation averages 48.7 Inches. Madison 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 | 32.2 °F | 54.5 °F | 4.35 in. |
| February | 34.7 °F | 58.0 °F | 4.41 in. |
| March | 40.5 °F | 65.8 °F | 4.78 in. |
| April | 48.4 °F | 73.8 °F | 3.73 in. |
| May | 57.6 °F | 81.2 °F | 3.24 in. |
| June | 66.0 °F | 87.7 °F | 4.63 in. |
| July | 69.5 °F | 90.5 °F | 4.15 in. |
| August | 68.6 °F | 89.3 °F | 4.31 in. |
| September | 62.4 °F | 84.2 °F | 3.99 in. |
| October | 50.6 °F | 74.9 °F | 2.98 in. |
| November | 39.6 °F | 64.8 °F | 3.6 in. |
| December | 34.5 °F | 56.5 °F | 4.52 in. |
| Annual | 50.4 °F | 73.4 °F | 48.69 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 8a : 10°F to 15°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |