| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F |
| 2012 Hardiness Zone: | Zone 4b: -25°F to -20°F Zone 4a: -30°F to -25°F |
| 1990 Hardiness Zone: | Zone 4b: -25F to -20F |
| Average First Frost Date: | Sep. 21 - Sep. 30 |
| Average Last Frost Date: | Jun. 1 - Jun. 10 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 82e - Central Maine Embayment |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 04426 - Dover Foxcroft, ME | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 1 | 4 | 15 | 28 | 39 | 49 | 54 | 52 | 43 | 32 | 24 | 10 | 30 |
| Avg Max Temp (°F) | 24 | 28 | 37 | 49 | 64 | 73 | 78 | 77 | 67 | 55 | 42 | 29 | 52 |
| Avg Precip (In.) | 3.81 | 2.78 | 3.48 | 3.54 | 3.67 | 3.99 | 3.62 | 3.61 | 3.94 | 3.83 | 3.99 | 3.49 | 43.74 |