| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| Average First Frost Date: | Oct. 1 - Oct. 10 |
| Average Last Frost Date: | May 11 - May 20 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 82g - Downeast Coast |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 04416 - Bucksport, ME | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 9 | 11 | 22 | 32 | 43 | 52 | 58 | 56 | 48 | 38 | 29 | 16 | 34 |
| Avg Max Temp (°F) | 29 | 32 | 41 | 53 | 65 | 74 | 79 | 78 | 69 | 58 | 46 | 34 | 55 |
| Avg Precip (In.) | 3.9 | 2.94 | 3.98 | 3.93 | 3.79 | 3.62 | 3.29 | 3.03 | 3.83 | 3.98 | 4.4 | 3.99 | 44.69 |