Ellington, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 36.1 °F (low) to 56.3 °F (high). Annual precipitation averages 47.7 Inches. Ellington is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 15.0 °F | 31.0 °F | 3.79 in. |
| February | 15.3 °F | 33.2 °F | 2.68 in. |
| March | 22.0 °F | 42.0 °F | 3.28 in. |
| April | 32.8 °F | 55.4 °F | 3.97 in. |
| May | 43.7 °F | 67.5 °F | 4.05 in. |
| June | 52.6 °F | 75.4 °F | 4.49 in. |
| July | 56.7 °F | 79.4 °F | 4.84 in. |
| August | 55.5 °F | 77.9 °F | 4.08 in. |
| September | 49.0 °F | 71.7 °F | 4.21 in. |
| October | 38.8 °F | 59.1 °F | 4.37 in. |
| November | 29.9 °F | 46.7 °F | 3.86 in. |
| December | 22.4 °F | 36.2 °F | 4.04 in. |
| Annual | 36.1 °F | 56.3 °F | 47.66 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |