| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 11 - May 20 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 60d - Finger Lakes Uplands and Gorges |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 14873 - Prattsburgh, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 12 | 13 | 21 | 32 | 43 | 51 | 56 | 54 | 47 | 37 | 28 | 18 | 34 |
| Avg Max Temp (°F) | 29 | 32 | 41 | 53 | 66 | 74 | 78 | 77 | 69 | 58 | 45 | 34 | 55 |
| Avg Precip (In.) | 1.89 | 1.56 | 1.69 | 2.49 | 3.5 | 4.21 | 3.19 | 3.44 | 4.19 | 3.16 | 2.85 | 2.14 | 34.31 |