Belleville, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.9 °C (low) to 22.7 °C (high). Annual precipitation averages 1286.3 Millimeters. Belleville 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 | -1.4 °C | 10.1 °C | 90.93 mm |
| February | 0.2 °C | 13 °C | 86.87 mm |
| March | 4.4 °C | 17.8 °C | 120.14 mm |
| April | 9.3 °C | 23.1 °C | 126.49 mm |
| May | 14.8 °C | 27 °C | 144.53 mm |
| June | 19.4 °C | 31.4 °C | 99.57 mm |
| July | 21.3 °C | 33.9 °C | 89.41 mm |
| August | 20.6 °C | 33.9 °C | 87.12 mm |
| September | 16.3 °C | 29.9 °C | 100.84 mm |
| October | 9.7 °C | 23.9 °C | 102.36 mm |
| November | 4 °C | 16.7 °C | 122.68 mm |
| December | -0.1 °C | 11.3 °C | 115.32 mm |
| Annual | 9.9 °C | 22.7 °C | 1286.26 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 7b : -15°C to -12.2°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |