East Greenbush, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 3.8 °C (low) to 14.7 °C (high). Annual precipitation averages 1086.4 Millimeters. East Greenbush 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 | -9.1 °C | 0.2 °C | 73.15 mm |
| February | -8.3 °C | 1.8 °C | 58.17 mm |
| March | -3.7 °C | 6.8 °C | 76.96 mm |
| April | 2.4 °C | 14.5 °C | 83.31 mm |
| May | 8.6 °C | 21.1 °C | 87.88 mm |
| June | 13.8 °C | 25.5 °C | 117.6 mm |
| July | 16.2 °C | 28.2 °C | 120.4 mm |
| August | 15.6 °C | 27.1 °C | 103.89 mm |
| September | 11.1 °C | 23.1 °C | 100.33 mm |
| October | 5 °C | 16.1 °C | 104.39 mm |
| November | -0.3 °C | 9.3 °C | 75.44 mm |
| December | -5.2 °C | 3.1 °C | 84.84 mm |
| Annual | 3.8 °C | 14.7 °C | 1086.36 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 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 |