Barnegat, New Jersey has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 45.9 °F (low) to 63.4 °F (high). Annual precipitation averages 48.2 Inches. Barnegat is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 25.2 °F | 41.8 °F | 3.87 in. |
| February | 26.1 °F | 44.0 °F | 3.12 in. |
| March | 32.5 °F | 50.3 °F | 4.83 in. |
| April | 42.2 °F | 60.7 °F | 3.5 in. |
| May | 51.7 °F | 69.9 °F | 3.66 in. |
| June | 61.4 °F | 79.7 °F | 4.05 in. |
| July | 67.3 °F | 84.4 °F | 4.27 in. |
| August | 66.7 °F | 83.0 °F | 4.84 in. |
| September | 60.5 °F | 77.0 °F | 3.64 in. |
| October | 48.6 °F | 66.5 °F | 4.32 in. |
| November | 38.1 °F | 56.1 °F | 3.52 in. |
| December | 30.5 °F | 47.0 °F | 4.62 in. |
| Annual | 45.9 °F | 63.4 °F | 48.24 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |