Ellisburg, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 37.7 °F (low) to 55.7 °F (high). Annual precipitation averages 48.1 Inches. Ellisburg 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 | 13.6 °F | 30.1 °F | 4.57 in. |
| February | 14.4 °F | 31.5 °F | 3.46 in. |
| March | 22.7 °F | 39.7 °F | 3.2 in. |
| April | 34.1 °F | 54.0 °F | 3.57 in. |
| May | 45.8 °F | 66.5 °F | 3.68 in. |
| June | 55.0 °F | 75.0 °F | 3.66 in. |
| July | 60.7 °F | 79.4 °F | 3.56 in. |
| August | 59.3 °F | 78.4 °F | 3.89 in. |
| September | 51.9 °F | 72.0 °F | 4.2 in. |
| October | 41.6 °F | 59.3 °F | 5.16 in. |
| November | 31.8 °F | 47.1 °F | 4.45 in. |
| December | 21.7 °F | 35.9 °F | 4.74 in. |
| Annual | 37.7 °F | 55.7 °F | 48.14 in. |
| 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 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |