Star City, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.5 °C (low) to 23.3 °C (high). Annual precipitation averages 1377.7 Millimeters. Star City is located in USDA Plant Hardiness Zone 8b. 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 | 0.8 °C | 11.4 °C | 119.89 mm |
| February | 2.5 °C | 14.2 °C | 118.87 mm |
| March | 6.4 °C | 18.8 °C | 137.16 mm |
| April | 11 °C | 23.6 °C | 149.86 mm |
| May | 16.2 °C | 27.6 °C | 126.75 mm |
| June | 20.4 °C | 31.6 °C | 85.34 mm |
| July | 22.1 °C | 33.3 °C | 90.42 mm |
| August | 21.4 °C | 33.1 °C | 88.39 mm |
| September | 17.8 °C | 30.2 °C | 85.09 mm |
| October | 11.2 °C | 24.6 °C | 116.59 mm |
| November | 5.8 °C | 17.9 °C | 113.03 mm |
| December | 2.2 °C | 12.9 °C | 146.3 mm |
| Annual | 11.5 °C | 23.3 °C | 1377.69 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 8b : -9.4°C to -6.7°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 |