| 2023 Hardiness Zone: | Zone 4b: -25°F to -20°F Zone 4a: -30°F to -25°F |
| 2012 Hardiness Zone: | Zone 3b: -35°F to -30°F Zone 4a: -30°F to -25°F |
| 1990 Hardiness Zone: | Zone 3b: -35F to -30F |
| 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: | 82b - Aroostook Hills |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 04756 - Madawaska, ME | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | -5 | -3 | 11 | 26 | 38 | 48 | 53 | 51 | 42 | 32 | 22 | 5 | 27 |
| Avg Max Temp (°F) | 19 | 23 | 34 | 46 | 62 | 72 | 76 | 74 | 65 | 52 | 38 | 25 | 49 |
| Avg Precip (In.) | 2.73 | 1.91 | 2.24 | 2.7 | 3.31 | 3.5 | 3.94 | 4.03 | 3.37 | 3.14 | 2.91 | 2.95 | 36.73 |