Island Heights, New Jersey has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 45.5 °F (low) to 62.6 °F (high). Annual precipitation averages 49.7 Inches. Island Heights 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 | 24.6 °F | 40.9 °F | 3.96 in. |
| February | 25.9 °F | 42.9 °F | 3.18 in. |
| March | 32.5 °F | 49.1 °F | 4.96 in. |
| April | 42.2 °F | 60.1 °F | 3.54 in. |
| May | 51.5 °F | 69.2 °F | 3.68 in. |
| June | 61.2 °F | 79.0 °F | 4.22 in. |
| July | 67.0 °F | 83.8 °F | 4.71 in. |
| August | 66.1 °F | 82.3 °F | 4.89 in. |
| September | 59.7 °F | 76.2 °F | 3.71 in. |
| October | 47.8 °F | 65.7 °F | 4.36 in. |
| November | 37.5 °F | 55.5 °F | 3.72 in. |
| December | 29.8 °F | 46.5 °F | 4.78 in. |
| Annual | 45.5 °F | 62.6 °F | 49.71 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 7a : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |