Manahawkin, New Jersey has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.7 °C (low) to 17.6 °C (high). Annual precipitation averages 1195.3 Millimeters. Manahawkin 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 | -3.9 °C | 5.6 °C | 95 mm |
| February | -3.3 °C | 6.7 °C | 76.96 mm |
| March | 0.3 °C | 10.2 °C | 119.89 mm |
| April | 5.6 °C | 16.1 °C | 87.88 mm |
| May | 10.9 °C | 21.3 °C | 89.15 mm |
| June | 16.4 °C | 26.7 °C | 97.79 mm |
| July | 19.7 °C | 29.3 °C | 108.2 mm |
| August | 19.2 °C | 28.6 °C | 124.97 mm |
| September | 15.7 °C | 25.2 °C | 90.42 mm |
| October | 9.1 °C | 19.3 °C | 105.92 mm |
| November | 3.4 °C | 13.5 °C | 85.6 mm |
| December | -0.8 °C | 8.4 °C | 113.54 mm |
| Annual | 7.7 °C | 17.6 °C | 1195.32 mm |
| 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 : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |