Vienna, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 54.5 °F (low) to 76.9 °F (high). Annual precipitation averages 48.4 Inches. Vienna 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 | 37.0 °F | 59.1 °F | 4.62 in. |
| February | 39.6 °F | 62.7 °F | 4.17 in. |
| March | 45.4 °F | 69.9 °F | 4.77 in. |
| April | 53.1 °F | 77.5 °F | 4.03 in. |
| May | 62.1 °F | 84.9 °F | 2.92 in. |
| June | 69.5 °F | 90.0 °F | 4.68 in. |
| July | 72.0 °F | 92.0 °F | 4.69 in. |
| August | 71.2 °F | 90.9 °F | 4.2 in. |
| September | 66.1 °F | 86.9 °F | 4.03 in. |
| October | 54.7 °F | 78.8 °F | 2.72 in. |
| November | 44.1 °F | 68.9 °F | 3.23 in. |
| December | 39.2 °F | 61.4 °F | 4.33 in. |
| Annual | 54.5 °F | 76.9 °F | 48.39 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 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |