| 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 |
| 1990 Hardiness Zone: | Zone 4b: -25F to -20F |
| Average First Frost Date: | Oct. 1 - Oct. 10 |
| Average Last Frost Date: | May 21 - May 31 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 83f - Mohawk Valley |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 13491 - West Winfield, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 10 | 12 | 21 | 32 | 43 | 51 | 56 | 54 | 47 | 36 | 28 | 17 | 34 |
| Avg Max Temp (°F) | 29 | 32 | 41 | 54 | 67 | 75 | 79 | 77 | 69 | 58 | 46 | 34 | 55 |
| Avg Precip (In.) | 2.82 | 2.36 | 3.21 | 3.61 | 4.06 | 4.32 | 4.06 | 3.91 | 4.33 | 3.49 | 3.83 | 3.13 | 43.13 |