Moro, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.2 °C (low) to 22 °C (high). Annual precipitation averages 1311.9 Millimeters. Moro is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.2 °C | 9.3 °C | 99.82 mm |
| February | 1.6 °C | 11.9 °C | 109.73 mm |
| March | 6 °C | 16.8 °C | 134.11 mm |
| April | 11 °C | 22.3 °C | 143.76 mm |
| May | 16.4 °C | 26.9 °C | 134.62 mm |
| June | 20.8 °C | 31.1 °C | 93.73 mm |
| July | 22.3 °C | 32.6 °C | 92.2 mm |
| August | 21.3 °C | 32.4 °C | 71.63 mm |
| September | 17.2 °C | 29.3 °C | 77.22 mm |
| October | 10.8 °C | 23.6 °C | 101.85 mm |
| November | 5.3 °C | 16.4 °C | 114.81 mm |
| December | 1.6 °C | 10.9 °C | 138.43 mm |
| Annual | 11.2 °C | 22 °C | 1311.91 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |