West Hampton Dunes, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 44.3 °F (low) to 60.2 °F (high). Annual precipitation averages 46.1 Inches. West Hampton Dunes is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 24.0 °F | 38.8 °F | 3.76 in. |
| February | 25.0 °F | 40.4 °F | 3.32 in. |
| March | 30.9 °F | 46.7 °F | 4.63 in. |
| April | 39.9 °F | 56.9 °F | 4.11 in. |
| May | 49.5 °F | 66.5 °F | 3.42 in. |
| June | 59.3 °F | 75.7 °F | 3.71 in. |
| July | 65.7 °F | 81.5 °F | 2.97 in. |
| August | 64.5 °F | 80.6 °F | 3.71 in. |
| September | 58.2 °F | 74.4 °F | 3.71 in. |
| October | 47.3 °F | 63.5 °F | 4.54 in. |
| November | 37.7 °F | 53.5 °F | 3.7 in. |
| December | 29.9 °F | 44.3 °F | 4.51 in. |
| Annual | 44.3 °F | 60.2 °F | 46.09 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |