| 2023 Hardiness Zone: | 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: | 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 13408 - Morrisville, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 10 | 12 | 21 | 32 | 43 | 52 | 56 | 55 | 47 | 37 | 29 | 18 | 34 |
| Avg Max Temp (°F) | 29 | 32 | 41 | 54 | 67 | 75 | 80 | 77 | 69 | 58 | 46 | 34 | 55 |
| Avg Precip (In.) | 2.74 | 2.43 | 2.88 | 3.31 | 3.87 | 4.11 | 3.67 | 3.51 | 4.36 | 3.45 | 3.55 | 3.21 | 41.09 |