Dyess, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51.2 °F (low) to 71 °F (high). Annual precipitation averages 52.8 Inches. Dyess 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 | 30.4 °F | 46.9 °F | 3.95 in. |
| February | 33.4 °F | 52.1 °F | 4.34 in. |
| March | 41.1 °F | 61.2 °F | 5.18 in. |
| April | 50.4 °F | 71.8 °F | 5.66 in. |
| May | 61.0 °F | 80.6 °F | 5.28 in. |
| June | 69.0 °F | 88.7 °F | 3.92 in. |
| July | 72.1 °F | 90.8 °F | 3.93 in. |
| August | 69.7 °F | 90.0 °F | 3.18 in. |
| September | 62.3 °F | 84.7 °F | 3.43 in. |
| October | 50.5 °F | 74.3 °F | 4.0 in. |
| November | 40.6 °F | 60.7 °F | 4.58 in. |
| December | 33.3 °F | 50.5 °F | 5.32 in. |
| Annual | 51.2 °F | 71 °F | 52.77 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 | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |