Hamilton, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.5 °F (low) to 71.2 °F (high). Annual precipitation averages 50.5 Inches. Hamilton 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 | 31.5 °F | 51.9 °F | 3.7 in. |
| February | 33.3 °F | 55.0 °F | 3.08 in. |
| March | 39.8 °F | 62.1 °F | 4.03 in. |
| April | 49.3 °F | 71.6 °F | 3.61 in. |
| May | 58.4 °F | 78.5 °F | 3.66 in. |
| June | 66.4 °F | 85.7 °F | 4.87 in. |
| July | 70.3 °F | 88.9 °F | 5.47 in. |
| August | 68.5 °F | 87.1 °F | 5.45 in. |
| September | 62.8 °F | 82.0 °F | 6.23 in. |
| October | 50.8 °F | 72.9 °F | 3.7 in. |
| November | 40.2 °F | 63.1 °F | 3.29 in. |
| December | 34.5 °F | 55.1 °F | 3.41 in. |
| Annual | 50.5 °F | 71.2 °F | 50.5 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 8a : 10°F to 15°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |