Cobleskill, 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 13.9 °C (high). Annual precipitation averages 1043.2 Millimeters. Cobleskill is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10.1 °C | -0.6 °C | 73.66 mm |
| February | -9.3 °C | 1.1 °C | 58.17 mm |
| March | -5.3 °C | 5.5 °C | 83.06 mm |
| April | 1.1 °C | 13.5 °C | 81.79 mm |
| May | 7.4 °C | 20.3 °C | 80.01 mm |
| June | 12.4 °C | 24.7 °C | 103.12 mm |
| July | 15.1 °C | 27.3 °C | 100.58 mm |
| August | 14.2 °C | 26.3 °C | 98.55 mm |
| September | 10.2 °C | 22.3 °C | 91.44 mm |
| October | 4.1 °C | 15.2 °C | 93.47 mm |
| November | -1.2 °C | 8.4 °C | 79.76 mm |
| December | -5.9 °C | 2.2 °C | 99.57 mm |
| Annual | 2.7 °C | 13.9 °C | 1043.18 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 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 |