Ellenville, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 4.1 °C (low) to 16.2 °C (high). Annual precipitation averages 1239.5 Millimeters. Ellenville is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.1 °C | 1.9 °C | 88.65 mm |
| February | -7.1 °C | 3.6 °C | 68.58 mm |
| March | -2.8 °C | 8.3 °C | 95.76 mm |
| April | 2.9 °C | 15.9 °C | 95.5 mm |
| May | 8.5 °C | 22 °C | 98.55 mm |
| June | 13.6 °C | 27.1 °C | 127.51 mm |
| July | 16.3 °C | 29.7 °C | 108.46 mm |
| August | 15.3 °C | 28.5 °C | 111.25 mm |
| September | 11.1 °C | 24.5 °C | 122.43 mm |
| October | 4.9 °C | 17.2 °C | 119.89 mm |
| November | -0.3 °C | 10.5 °C | 93.47 mm |
| December | -4.8 °C | 4.6 °C | 109.47 mm |
| Annual | 4.1 °C | 16.2 °C | 1239.52 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |