| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F | |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F | |
| Average First Frost Date: | Oct. 21 - Oct. 31 | |
| Average Last Frost Date: | May 1 - May 10 | |
| 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: | 1 - 7 days Over 86°F |
Annual Climate Data for ZIP Code 10567 - Cortlandt Manor, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 18 | 20 | 29 | 39 | 49 | 58 | 63 | 61 | 54 | 42 | 34 | 24 | 41 |
| Avg Max Temp (°F) | 35 | 38 | 48 | 59 | 70 | 79 | 83 | 82 | 74 | 63 | 51 | 40 | 60 |
| Avg Precip (In.) | 3.98 | 3.08 | 4.16 | 4.25 | 4.72 | 4.18 | 4.32 | 4.34 | 4.49 | 3.99 | 4.31 | 3.87 | 49.7 |