Lonoke, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.8 °C (low) to 21.7 °C (high). Annual precipitation averages 1271 Millimeters. Lonoke 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 | -0.4 °C | 9.4 °C | 95 mm |
| February | 1.2 °C | 12.1 °C | 98.81 mm |
| March | 5.4 °C | 16.9 °C | 123.7 mm |
| April | 10.4 °C | 21.9 °C | 137.41 mm |
| May | 16 °C | 26.2 °C | 130.56 mm |
| June | 20.6 °C | 30.6 °C | 84.33 mm |
| July | 22.2 °C | 32.2 °C | 84.58 mm |
| August | 21.2 °C | 31.9 °C | 78.99 mm |
| September | 17.1 °C | 28.7 °C | 83.31 mm |
| October | 10.4 °C | 23.2 °C | 106.68 mm |
| November | 4.9 °C | 16.3 °C | 113.54 mm |
| December | 1.1 °C | 11 °C | 134.11 mm |
| Annual | 10.8 °C | 21.7 °C | 1271.02 mm |
| 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 : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |