McAlmont, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.5 °C (low) to 22.5 °C (high). Annual precipitation averages 1359.4 Millimeters. McAlmont 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. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.9 °C | 10.1 °C | 100.33 mm |
| February | 0.8 °C | 12.8 °C | 105.41 mm |
| March | 5.1 °C | 17.6 °C | 130.81 mm |
| April | 10 °C | 22.7 °C | 144.78 mm |
| May | 15.6 °C | 26.9 °C | 143 mm |
| June | 20.2 °C | 31.3 °C | 89.92 mm |
| July | 22 °C | 33.3 °C | 93.98 mm |
| August | 21.1 °C | 33.2 °C | 85.09 mm |
| September | 16.9 °C | 29.7 °C | 84.33 mm |
| October | 10.2 °C | 23.8 °C | 116.33 mm |
| November | 4.4 °C | 16.7 °C | 125.98 mm |
| December | 0.6 °C | 11.6 °C | 139.45 mm |
| Annual | 10.5 °C | 22.5 °C | 1359.41 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 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 |