Gibson, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.2 °C (low) to 22.5 °C (high). Annual precipitation averages 1358.1 Millimeters. Gibson 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 | -1.2 °C | 10.2 °C | 98.3 mm |
| February | 0.6 °C | 12.8 °C | 104.39 mm |
| March | 4.9 °C | 17.6 °C | 130.56 mm |
| April | 9.7 °C | 22.8 °C | 143 mm |
| May | 15.3 °C | 27 °C | 145.54 mm |
| June | 19.9 °C | 31.4 °C | 89.15 mm |
| July | 21.8 °C | 33.4 °C | 95.76 mm |
| August | 20.9 °C | 33.2 °C | 85.6 mm |
| September | 16.6 °C | 29.7 °C | 85.09 mm |
| October | 9.9 °C | 23.9 °C | 117.6 mm |
| November | 4.1 °C | 16.7 °C | 126.24 mm |
| December | 0.3 °C | 11.6 °C | 136.91 mm |
| Annual | 10.2 °C | 22.5 °C | 1358.14 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 7b : -15°C to -12.2°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |