Vienna Bend, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 55.3 °F (low) to 77.5 °F (high). Annual precipitation averages 56.7 Inches. Vienna Bend 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 | 37.5 °F | 58.4 °F | 5.55 in. |
| February | 40.5 °F | 62.6 °F | 4.84 in. |
| March | 47.2 °F | 70.2 °F | 5.61 in. |
| April | 54.6 °F | 77.7 °F | 5.42 in. |
| May | 63.2 °F | 85.0 °F | 4.6 in. |
| June | 70.4 °F | 90.9 °F | 4.45 in. |
| July | 73.2 °F | 93.7 °F | 4.08 in. |
| August | 72.3 °F | 94.1 °F | 3.7 in. |
| September | 66.2 °F | 88.9 °F | 3.71 in. |
| October | 54.8 °F | 79.6 °F | 4.48 in. |
| November | 44.8 °F | 68.5 °F | 4.68 in. |
| December | 39.3 °F | 60.5 °F | 5.59 in. |
| Annual | 55.3 °F | 77.5 °F | 56.71 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 | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |