Stem, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 47.7 °F (low) to 70.1 °F (high). Annual precipitation averages 46.5 Inches. Stem is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 28.7 °F | 50.0 °F | 3.63 in. |
| February | 30.5 °F | 53.5 °F | 2.97 in. |
| March | 36.9 °F | 61.3 °F | 4.3 in. |
| April | 46.1 °F | 71.2 °F | 3.74 in. |
| May | 55.5 °F | 78.0 °F | 3.74 in. |
| June | 64.0 °F | 85.3 °F | 4.04 in. |
| July | 68.0 °F | 88.8 °F | 4.69 in. |
| August | 66.5 °F | 86.9 °F | 4.07 in. |
| September | 60.2 °F | 81.1 °F | 4.91 in. |
| October | 47.6 °F | 71.3 °F | 3.62 in. |
| November | 36.9 °F | 61.3 °F | 3.27 in. |
| December | 31.6 °F | 53.0 °F | 3.48 in. |
| Annual | 47.7 °F | 70.1 °F | 46.46 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Exceptional Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |