| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°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. 11 - Oct. 20 |
| Average Last Frost Date: | May 11 - May 20 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 60a - Glaciated Low Plateau |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 13797 - Lisle, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 14 | 15 | 23 | 34 | 45 | 54 | 58 | 57 | 49 | 38 | 30 | 20 | 36 |
| Avg Max Temp (°F) | 29 | 32 | 41 | 54 | 67 | 75 | 79 | 77 | 69 | 58 | 45 | 34 | 55 |
| Avg Precip (In.) | 2.3 | 2.12 | 2.75 | 3.36 | 3.43 | 3.69 | 3.29 | 3.35 | 3.62 | 2.94 | 3.18 | 2.8 | 36.84 |