Pelham, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 57 °F (low) to 78.2 °F (high). Annual precipitation averages 52.2 Inches. Pelham is located in USDA Plant Hardiness Zone 9a. 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 | 40.0 °F | 62.4 °F | 4.85 in. |
| February | 43.0 °F | 66.2 °F | 4.6 in. |
| March | 48.5 °F | 72.5 °F | 5.18 in. |
| April | 55.6 °F | 78.4 °F | 3.95 in. |
| May | 63.9 °F | 85.5 °F | 2.57 in. |
| June | 70.4 °F | 89.3 °F | 5.59 in. |
| July | 72.5 °F | 91.3 °F | 5.53 in. |
| August | 73.0 °F | 90.4 °F | 5.29 in. |
| September | 68.8 °F | 86.8 °F | 4.2 in. |
| October | 58.2 °F | 79.8 °F | 2.87 in. |
| November | 47.3 °F | 70.9 °F | 3.24 in. |
| December | 42.6 °F | 64.4 °F | 4.3 in. |
| Annual | 57 °F | 78.2 °F | 52.17 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |