Walnut Creek, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51.3 °F (low) to 72.8 °F (high). Annual precipitation averages 50.6 Inches. Walnut Creek is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 32.6 °F | 53.6 °F | 3.41 in. |
| February | 34.2 °F | 57.0 °F | 3.07 in. |
| March | 40.5 °F | 64.2 °F | 3.76 in. |
| April | 49.9 °F | 73.4 °F | 3.47 in. |
| May | 58.9 °F | 80.5 °F | 3.92 in. |
| June | 67.2 °F | 87.4 °F | 4.75 in. |
| July | 71.1 °F | 90.3 °F | 5.59 in. |
| August | 69.2 °F | 88.2 °F | 5.76 in. |
| September | 63.7 °F | 83.3 °F | 6.44 in. |
| October | 51.5 °F | 74.4 °F | 3.58 in. |
| November | 41.0 °F | 64.5 °F | 3.32 in. |
| December | 35.6 °F | 56.6 °F | 3.53 in. |
| Annual | 51.3 °F | 72.8 °F | 50.6 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| 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 | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |