| 2023 Hardiness Zone: | Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 7a: 0°F to 5°F |
| 1990 Hardiness Zone: | Zone 7a: 0F to 5F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 84c - Barrier Islands - Coastal Marshes |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 11978 - Westhampton Beach, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 24 | 25 | 32 | 40 | 49 | 59 | 65 | 64 | 57 | 46 | 38 | 29 | 44 |
| Avg Max Temp (°F) | 39 | 40 | 48 | 58 | 68 | 77 | 83 | 81 | 74 | 64 | 53 | 44 | 61 |
| Avg Precip (In.) | 4.39 | 3.5 | 4.29 | 4.2 | 3.82 | 3.73 | 3.2 | 4.11 | 3.74 | 3.72 | 4.21 | 4.15 | 47.05 |