| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F | |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F | |
| 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: | 83a - Erie Lake Plain | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 14047 - Derby, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 17 | 17 | 26 | 36 | 47 | 56 | 61 | 59 | 53 | 43 | 34 | 24 | 40 |
| Avg Max Temp (°F) | 32 | 34 | 44 | 55 | 68 | 76 | 80 | 78 | 71 | 60 | 48 | 37 | 57 |
| Avg Precip (In.) | 2.49 | 1.99 | 2.83 | 2.95 | 3.07 | 3.65 | 3.61 | 3.57 | 4.36 | 3.38 | 3.63 | 3.21 | 38.75 |