Brunswick, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 52 °F (low) to 74.2 °F (high). Annual precipitation averages 52 Inches. Brunswick is located in USDA Plant Hardiness Zone 8b. 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 | 33.9 °F | 56.2 °F | 3.76 in. |
| February | 35.9 °F | 59.2 °F | 3.33 in. |
| March | 41.6 °F | 66.4 °F | 3.79 in. |
| April | 50.0 °F | 75.1 °F | 3.46 in. |
| May | 58.8 °F | 81.6 °F | 3.79 in. |
| June | 67.2 °F | 87.6 °F | 5.18 in. |
| July | 71.1 °F | 90.7 °F | 5.55 in. |
| August | 69.6 °F | 89.0 °F | 5.98 in. |
| September | 64.4 °F | 84.2 °F | 6.52 in. |
| October | 52.8 °F | 75.7 °F | 3.55 in. |
| November | 42.1 °F | 66.2 °F | 3.44 in. |
| December | 36.7 °F | 58.9 °F | 3.65 in. |
| Annual | 52 °F | 74.2 °F | 52 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 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |