Whigham, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 13.5 °C (low) to 25.7 °C (high). Annual precipitation averages 1361.5 Millimeters. Whigham 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. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 4.1 °C | 16.7 °C | 117.35 mm |
| February | 5.8 °C | 18.8 °C | 112.78 mm |
| March | 8.9 °C | 22.4 °C | 128.78 mm |
| April | 12.5 °C | 25.8 °C | 100.84 mm |
| May | 17.1 °C | 29.8 °C | 72.9 mm |
| June | 20.8 °C | 32.1 °C | 149.86 mm |
| July | 22.1 °C | 32.9 °C | 149.86 mm |
| August | 22.1 °C | 32.4 °C | 146.05 mm |
| September | 19.9 °C | 30.6 °C | 115.57 mm |
| October | 14.3 °C | 26.7 °C | 78.23 mm |
| November | 8.6 °C | 21.7 °C | 84.84 mm |
| December | 5.7 °C | 17.9 °C | 104.39 mm |
| Annual | 13.5 °C | 25.7 °C | 1361.45 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |