| 2023 Hardiness Zone: | Zone 4b: -25°F to -20°F Zone 4a: -30°F to -25°F |
| 2012 Hardiness Zone: | Zone 4a: -30°F to -25°F |
| 1990 Hardiness Zone: | Zone 4a: -30F to -25F |
| Average First Frost Date: | Sep.11 - Sep. 20 |
| Average Last Frost Date: | Jun. 1 - Jun. 10 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 82a - Aroostook Lowlands |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 04740 - Easton, ME | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 0 | 3 | 15 | 28 | 40 | 49 | 55 | 52 | 44 | 34 | 24 | 9 | 29 |
| Avg Max Temp (°F) | 21 | 25 | 35 | 48 | 64 | 73 | 77 | 75 | 66 | 53 | 38 | 26 | 50 |
| Avg Precip (In.) | 2.74 | 1.89 | 2.33 | 2.55 | 3.46 | 3.51 | 3.77 | 3.9 | 3.49 | 3.3 | 2.96 | 2.8 | 36.69 |