Glenville, North Carolina has a Temperate Oceanic Climate climate (Köppen classification: Cfb). Average annual temperatures range from 43.5 °F (low) to 63.1 °F (high). Annual precipitation averages 66 Inches. Glenville is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 25.7 °F | 44.3 °F | 6.21 in. |
| February | 28.4 °F | 47.9 °F | 5.44 in. |
| March | 33.8 °F | 54.6 °F | 5.42 in. |
| April | 42.0 °F | 63.8 °F | 5.48 in. |
| May | 50.3 °F | 70.6 °F | 5.33 in. |
| June | 57.4 °F | 76.5 °F | 5.63 in. |
| July | 60.8 °F | 79.4 °F | 4.91 in. |
| August | 59.9 °F | 78.3 °F | 5.53 in. |
| September | 54.6 °F | 73.6 °F | 5.48 in. |
| October | 44.1 °F | 65.2 °F | 4.75 in. |
| November | 34.8 °F | 55.4 °F | 5.44 in. |
| December | 29.8 °F | 47.7 °F | 6.38 in. |
| Annual | 43.5 °F | 63.1 °F | 66 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfb - Temperate Oceanic Climate |