| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F |
| 1990 Hardiness Zone: | Zone 5a: -20F to -15F |
| Average First Frost Date: | Oct. 1 - Oct. 10 |
| Average Last Frost Date: | Jun. 1 - Jun. 10 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 60a - Glaciated Low Plateau |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 14101 - Machias, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 11 | 12 | 20 | 30 | 40 | 50 | 54 | 53 | 46 | 36 | 28 | 18 | 33 |
| Avg Max Temp (°F) | 29 | 32 | 41 | 53 | 66 | 74 | 78 | 76 | 69 | 58 | 45 | 34 | 55 |
| Avg Precip (In.) | 2.77 | 2.24 | 2.98 | 3.37 | 3.68 | 4.66 | 4.05 | 4.03 | 4.55 | 3.73 | 3.77 | 3.38 | 43.2 |