Hancock, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.4 °C (low) to 14.6 °C (high). Annual precipitation averages 1145.3 Millimeters. Hancock is located in USDA Plant Hardiness Zone 5b. 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 | 0.3 °C | 81.53 mm |
| February | -9 °C | 1.9 °C | 61.47 mm |
| March | -5.2 °C | 6.4 °C | 85.85 mm |
| April | 0.6 °C | 14.3 °C | 96.01 mm |
| May | 6.5 °C | 20.8 °C | 101.6 mm |
| June | 11.7 °C | 25.2 °C | 116.59 mm |
| July | 14.4 °C | 27.7 °C | 106.43 mm |
| August | 13.5 °C | 26.8 °C | 102.87 mm |
| September | 9.8 °C | 23 °C | 109.22 mm |
| October | 3.6 °C | 16.3 °C | 108.2 mm |
| November | -1.5 °C | 9 °C | 86.87 mm |
| December | -5.9 °C | 2.9 °C | 88.65 mm |
| Annual | 2.4 °C | 14.6 °C | 1145.29 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 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |