New Bern, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.4 °C (low) to 23.2 °C (high). Annual precipitation averages 1428.2 Millimeters. New Bern is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.3 °C | 13.3 °C | 95.25 mm |
| February | 2.2 °C | 14.9 °C | 86.61 mm |
| March | 5.4 °C | 18.6 °C | 93.98 mm |
| April | 10.3 °C | 23.6 °C | 78.74 mm |
| May | 15.1 °C | 27.1 °C | 109.47 mm |
| June | 19.7 °C | 30.7 °C | 145.29 mm |
| July | 21.8 °C | 32.2 °C | 174.24 mm |
| August | 21.1 °C | 31.2 °C | 178.31 mm |
| September | 18.4 °C | 28.8 °C | 177.04 mm |
| October | 12.1 °C | 24.1 °C | 101.6 mm |
| November | 6.2 °C | 18.9 °C | 93.98 mm |
| December | 2.9 °C | 15 °C | 93.73 mm |
| Annual | 11.4 °C | 23.2 °C | 1428.24 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |