Interlaken, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 38.7 °F (low) to 57.2 °F (high). Annual precipitation averages 36.9 Inches. Interlaken is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.3 °F | 31.8 °F | 2.15 in. |
| February | 17.4 °F | 34.0 °F | 1.78 in. |
| March | 24.2 °F | 42.1 °F | 2.65 in. |
| April | 35.1 °F | 55.6 °F | 3.18 in. |
| May | 46.4 °F | 68.3 °F | 3.12 in. |
| June | 55.7 °F | 76.4 °F | 3.79 in. |
| July | 60.5 °F | 80.8 °F | 4.04 in. |
| August | 58.9 °F | 79.3 °F | 3.44 in. |
| September | 51.9 °F | 72.8 °F | 3.77 in. |
| October | 41.8 °F | 59.9 °F | 3.63 in. |
| November | 32.3 °F | 47.8 °F | 2.78 in. |
| December | 23.7 °F | 37.1 °F | 2.52 in. |
| Annual | 38.7 °F | 57.2 °F | 36.85 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |