Louann, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51.1 °F (low) to 74.9 °F (high). Annual precipitation averages 55.1 Inches. Louann 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 | 31.8 °F | 54.4 °F | 4.55 in. |
| February | 34.9 °F | 58.7 °F | 4.72 in. |
| March | 42.2 °F | 67.1 °F | 5.55 in. |
| April | 50.1 °F | 75.3 °F | 5.58 in. |
| May | 60.0 °F | 82.3 °F | 5.04 in. |
| June | 67.6 °F | 89.5 °F | 4.17 in. |
| July | 71.0 °F | 92.8 °F | 3.8 in. |
| August | 69.6 °F | 92.8 °F | 3.53 in. |
| September | 62.4 °F | 87.2 °F | 3.6 in. |
| October | 49.9 °F | 76.9 °F | 4.72 in. |
| November | 40.0 °F | 65.2 °F | 4.27 in. |
| December | 34.2 °F | 56.6 °F | 5.6 in. |
| Annual | 51.1 °F | 74.9 °F | 55.13 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 | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |