Casa, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49.4 °F (low) to 72.4 °F (high). Annual precipitation averages 53.1 Inches. Casa 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 | 29.1 °F | 50.1 °F | 3.56 in. |
| February | 32.0 °F | 54.9 °F | 3.85 in. |
| March | 39.6 °F | 63.8 °F | 4.9 in. |
| April | 48.1 °F | 72.7 °F | 5.38 in. |
| May | 58.1 °F | 80.1 °F | 5.79 in. |
| June | 66.4 °F | 88.1 °F | 4.27 in. |
| July | 69.8 °F | 92.4 °F | 3.64 in. |
| August | 68.6 °F | 92.2 °F | 3.58 in. |
| September | 60.9 °F | 85.2 °F | 4.17 in. |
| October | 49.0 °F | 74.8 °F | 4.21 in. |
| November | 38.9 °F | 62.1 °F | 5.01 in. |
| December | 31.8 °F | 52.6 °F | 4.72 in. |
| Annual | 49.4 °F | 72.4 °F | 53.08 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 | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |