| 2023 Hardiness Zone: | Zone 4b: -25°F to -20°F Zone 4a: -30°F to -25°F |
| 2012 Hardiness Zone: | Zone 3b: -35°F to -30°F Zone 4b: -25°F to -20°F Zone 4a: -30°F to -25°F |
| 1990 Hardiness Zone: | Zone 4a: -30F to -25F |
| Average First Frost Date: | Sep. 21 - Sep. 30 |
| Average Last Frost Date: | Jun. 11 - Jun. 20 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 58z - Adirondack High Peaks |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 12943 - Keene Valley, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 4 | 6 | 16 | 28 | 40 | 49 | 53 | 51 | 43 | 33 | 24 | 11 | 30 |
| Avg Max Temp (°F) | 26 | 30 | 39 | 51 | 65 | 73 | 78 | 76 | 67 | 56 | 43 | 31 | 53 |
| Avg Precip (In.) | 2.69 | 2.14 | 2.66 | 2.92 | 3.28 | 3.57 | 3.58 | 4.05 | 3.79 | 3.3 | 3.37 | 2.64 | 37.99 |