Copake Lake, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.7 °C (low) to 14.7 °C (high). Annual precipitation averages 1144 Millimeters. Copake Lake is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -9.9 °C | 0.5 °C | 79.25 mm |
| February | -9.1 °C | 2.3 °C | 65.79 mm |
| March | -4.5 °C | 6.8 °C | 83.31 mm |
| April | 1.3 °C | 14.6 °C | 86.11 mm |
| May | 7.2 °C | 21 °C | 93.98 mm |
| June | 12.2 °C | 25.1 °C | 113.28 mm |
| July | 14.9 °C | 27.9 °C | 114.81 mm |
| August | 14.1 °C | 26.9 °C | 112.01 mm |
| September | 9.9 °C | 22.7 °C | 108.71 mm |
| October | 3.7 °C | 16 °C | 111 mm |
| November | -1.3 °C | 9.4 °C | 76.96 mm |
| December | -5.9 °C | 3.2 °C | 98.81 mm |
| Annual | 2.7 °C | 14.7 °C | 1144.02 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |