| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F | |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F | |
| Average First Frost Date: | Oct. 11 - Oct. 20 | |
| Average Last Frost Date: | May 1 - May 10 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 83c - Ontario Lowlands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 14522 - Palmyra, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 16 | 17 | 25 | 36 | 46 | 55 | 60 | 59 | 52 | 41 | 33 | 23 | 39 |
| Avg Max Temp (°F) | 32 | 34 | 43 | 55 | 68 | 77 | 81 | 79 | 72 | 60 | 48 | 37 | 57 |
| Avg Precip (In.) | 2.23 | 1.84 | 2.46 | 2.95 | 3.05 | 3.57 | 3.04 | 3.37 | 3.81 | 3.18 | 3.26 | 2.7 | 35.45 |