| 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. 21 - Oct. 31 |
| Average Last Frost Date: | Apr. 21 - Apr. 30 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 84a - Cape Cod and Islands |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 11958 - Peconic, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 23 | 24 | 31 | 39 | 49 | 58 | 65 | 64 | 57 | 46 | 38 | 29 | 43 |
| Avg Max Temp (°F) | 38 | 40 | 47 | 57 | 67 | 76 | 82 | 80 | 73 | 63 | 53 | 44 | 60 |
| Avg Precip (In.) | 4.24 | 3.44 | 4.13 | 4.21 | 3.62 | 3.76 | 3.34 | 4.44 | 3.64 | 3.78 | 4.2 | 4.02 | 46.82 |