| 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 4b: -25°F to -20°F |
| 1990 Hardiness Zone: | Zone 4b: -25F to -20F |
| 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: | 58ac - Eastern Adirondack Foothills |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 12117 - Mayfield, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 9 | 10 | 21 | 32 | 44 | 53 | 58 | 56 | 48 | 37 | 28 | 17 | 34 |
| Avg Max Temp (°F) | 28 | 31 | 41 | 54 | 67 | 75 | 79 | 77 | 69 | 58 | 44 | 33 | 55 |
| Avg Precip (In.) | 3.85 | 2.8 | 3.8 | 3.84 | 4.12 | 4.1 | 3.85 | 4.08 | 4.28 | 3.73 | 3.99 | 3.69 | 46.13 |