| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°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: | Apr. 21 - Apr. 30 | |
| 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 13140 - Port Byron, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 14 | 15 | 24 | 35 | 46 | 55 | 60 | 59 | 51 | 41 | 32 | 21 | 38 |
| Avg Max Temp (°F) | 31 | 33 | 43 | 55 | 68 | 77 | 82 | 79 | 72 | 60 | 48 | 37 | 57 |
| Avg Precip (In.) | 2.41 | 1.99 | 2.5 | 3.06 | 3.15 | 3.64 | 3.44 | 3.43 | 4.01 | 3.22 | 3.39 | 2.84 | 37.07 |