| 2023 Hardiness Zone: | Zone 7b: 5°F to 10°F 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 11946 - Hampton Bays, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 23 | 25 | 31 | 39 | 49 | 58 | 64 | 63 | 56 | 45 | 37 | 29 | 43 |
| Avg Max Temp (°F) | 39 | 40 | 47 | 57 | 67 | 76 | 82 | 81 | 74 | 63 | 53 | 44 | 60 |
| Avg Precip (In.) | 4.47 | 3.58 | 4.33 | 4.21 | 3.79 | 3.69 | 3.15 | 4.07 | 3.77 | 3.71 | 4.26 | 4.18 | 47.23 |