| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 5a: -20F to -15F |
| 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: | 60d - Finger Lakes Uplands and Gorges |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 13159 - Tully, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 11 | 13 | 21 | 32 | 44 | 53 | 57 | 56 | 48 | 38 | 29 | 18 | 35 |
| Avg Max Temp (°F) | 28 | 30 | 39 | 52 | 64 | 73 | 78 | 76 | 68 | 56 | 44 | 33 | 53 |
| Avg Precip (In.) | 2.58 | 2.34 | 2.95 | 3.4 | 3.55 | 4.2 | 3.75 | 3.51 | 4.29 | 3.44 | 3.69 | 3.26 | 40.96 |