Fulton, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.4 °C (low) to 23.9 °C (high). Annual precipitation averages 1361.7 Millimeters. Fulton 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 | 0.6 °C | 12.6 °C | 104.39 mm |
| February | 2.4 °C | 14.9 °C | 115.82 mm |
| March | 6.6 °C | 19.5 °C | 130.56 mm |
| April | 10.7 °C | 24 °C | 137.67 mm |
| May | 16 °C | 27.8 °C | 134.87 mm |
| June | 20.2 °C | 31.9 °C | 102.36 mm |
| July | 22.2 °C | 34.2 °C | 87.38 mm |
| August | 21.3 °C | 34.2 °C | 83.31 mm |
| September | 17.6 °C | 30.8 °C | 101.6 mm |
| October | 11.1 °C | 25.1 °C | 119.13 mm |
| November | 5.6 °C | 18.4 °C | 109.22 mm |
| December | 1.9 °C | 13.7 °C | 135.38 mm |
| Annual | 11.4 °C | 23.9 °C | 1361.69 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 | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |