| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 5b: -15°F to -10°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 14787 - Westfield, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 19 | 19 | 27 | 37 | 48 | 57 | 62 | 61 | 54 | 44 | 35 | 25 | 41 |
| Avg Max Temp (°F) | 35 | 37 | 46 | 58 | 69 | 78 | 83 | 80 | 73 | 62 | 50 | 39 | 59 |
| Avg Precip (In.) | 2.25 | 1.95 | 2.76 | 3.1 | 3.22 | 3.94 | 3.79 | 3.92 | 4.66 | 3.89 | 3.88 | 3.43 | 40.8 |