| 2023 Hardiness Zone: | Zone 7b: 5°F to 10°F | |
| 2012 Hardiness Zone: | Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F | |
| 1990 Hardiness Zone: | Zone 7a: 0F to 5F | |
| Average First Frost Date: | Nov. 1 - Nov. 10 | |
| 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 | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 02554 - Nantucket, MA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 24 | 25 | 31 | 38 | 46 | 55 | 62 | 63 | 56 | 47 | 39 | 30 | 43 |
| Avg Max Temp (°F) | 39 | 39 | 45 | 52 | 61 | 70 | 76 | 76 | 71 | 61 | 53 | 44 | 57 |
| Avg Precip (In.) | 4.11 | 2.85 | 3.58 | 3.41 | 3.18 | 2.76 | 2.28 | 2.87 | 2.89 | 3.18 | 4 | 3.85 | 38.97 |