Garner, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49.8 °F (low) to 70.8 °F (high). Annual precipitation averages 49 Inches. Garner 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 | 30.7 °F | 51.2 °F | 3.64 in. |
| February | 32.6 °F | 54.8 °F | 2.98 in. |
| March | 39.1 °F | 62.4 °F | 4.03 in. |
| April | 48.0 °F | 71.7 °F | 3.63 in. |
| May | 57.5 °F | 78.4 °F | 3.74 in. |
| June | 65.7 °F | 85.5 °F | 4.48 in. |
| July | 69.7 °F | 88.7 °F | 5.19 in. |
| August | 68.3 °F | 86.9 °F | 5.13 in. |
| September | 62.6 °F | 81.4 °F | 5.59 in. |
| October | 50.1 °F | 71.9 °F | 3.63 in. |
| November | 39.3 °F | 62.1 °F | 3.44 in. |
| December | 33.7 °F | 54.0 °F | 3.53 in. |
| Annual | 49.8 °F | 70.8 °F | 49.01 in. |
| 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 : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |