| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F 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. 21 - Oct. 31 | |
| Average Last Frost Date: | May 11 - May 20 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 61c - Low Lime Drift Plain | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 14728 - Dewittville, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 15 | 16 | 24 | 34 | 44 | 53 | 58 | 57 | 50 | 39 | 31 | 22 | 37 |
| Avg Max Temp (°F) | 31 | 35 | 44 | 56 | 69 | 76 | 80 | 79 | 71 | 59 | 47 | 36 | 57 |
| Avg Precip (In.) | 3.34 | 2.72 | 3.35 | 3.64 | 3.56 | 4.53 | 4.26 | 4.43 | 4.69 | 4.22 | 4.45 | 4.23 | 47.4 |