Bell Arthur, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.9 °F (low) to 72.4 °F (high). Annual precipitation averages 51.7 Inches. Bell Arthur 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 | 32.3 °F | 53.1 °F | 3.7 in. |
| February | 33.8 °F | 56.4 °F | 3.2 in. |
| March | 40.0 °F | 63.4 °F | 3.9 in. |
| April | 49.4 °F | 73.1 °F | 3.61 in. |
| May | 58.6 °F | 80.0 °F | 4.23 in. |
| June | 66.9 °F | 87.2 °F | 4.84 in. |
| July | 70.9 °F | 90.1 °F | 5.56 in. |
| August | 69.0 °F | 88.0 °F | 5.68 in. |
| September | 63.2 °F | 83.0 °F | 6.69 in. |
| October | 51.1 °F | 74.1 °F | 3.61 in. |
| November | 40.7 °F | 64.3 °F | 3.28 in. |
| December | 35.1 °F | 56.1 °F | 3.39 in. |
| Annual | 50.9 °F | 72.4 °F | 51.69 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |