Letona, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.2 °F (low) to 71.6 °F (high). Annual precipitation averages 51.1 Inches. Letona 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 | 29.5 °F | 48.7 °F | 3.63 in. |
| February | 32.6 °F | 53.6 °F | 3.84 in. |
| March | 40.4 °F | 62.4 °F | 4.99 in. |
| April | 49.4 °F | 72.2 °F | 5.34 in. |
| May | 59.2 °F | 80.0 °F | 5.55 in. |
| June | 67.8 °F | 88.2 °F | 3.4 in. |
| July | 71.0 °F | 91.7 °F | 3.72 in. |
| August | 69.4 °F | 91.1 °F | 3.45 in. |
| September | 61.9 °F | 84.7 °F | 3.42 in. |
| October | 49.6 °F | 74.0 °F | 4.13 in. |
| November | 39.4 °F | 61.0 °F | 4.69 in. |
| December | 32.3 °F | 51.2 °F | 4.92 in. |
| Annual | 50.2 °F | 71.6 °F | 51.08 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 7b : 5°F to 10°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |