| 2023 Hardiness Zone: | Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F | |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F | |
| Average First Frost Date: | Oct. 21 - Oct. 31 | |
| Average Last Frost Date: | Apr. 21 - Apr. 30 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 59c - Southern New England Coastal Plains and Hills | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 10514 - Chappaqua, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 20 | 21 | 29 | 39 | 48 | 58 | 63 | 62 | 54 | 43 | 35 | 25 | 41 |
| Avg Max Temp (°F) | 36 | 38 | 48 | 59 | 70 | 79 | 83 | 81 | 74 | 63 | 51 | 40 | 60 |
| Avg Precip (In.) | 4.14 | 3.14 | 4.41 | 4.36 | 4.67 | 4.28 | 4.37 | 4.41 | 4.51 | 4.03 | 4.5 | 3.98 | 50.8 |