Colerain, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.2 °F (low) to 71.2 °F (high). Annual precipitation averages 51.1 Inches. Colerain 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 | 31.4 °F | 51.7 °F | 3.73 in. |
| February | 33.1 °F | 54.8 °F | 3.09 in. |
| March | 39.0 °F | 61.7 °F | 4.1 in. |
| April | 48.3 °F | 71.6 °F | 3.55 in. |
| May | 57.4 °F | 78.5 °F | 3.85 in. |
| June | 65.9 °F | 85.8 °F | 4.97 in. |
| July | 69.9 °F | 89.0 °F | 5.59 in. |
| August | 68.4 °F | 87.4 °F | 5.61 in. |
| September | 62.9 °F | 82.2 °F | 5.9 in. |
| October | 51.1 °F | 73.1 °F | 3.87 in. |
| November | 40.4 °F | 63.3 °F | 3.35 in. |
| December | 34.6 °F | 55.2 °F | 3.45 in. |
| Annual | 50.2 °F | 71.2 °F | 51.06 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 | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |