Ellicottville, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.6 °C (low) to 13.1 °C (high). Annual precipitation averages 1203.7 Millimeters. Ellicottville is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10.3 °C | -0.9 °C | 92.96 mm |
| February | -10.2 °C | 0.4 °C | 66.04 mm |
| March | -6.4 °C | 4.9 °C | 82.3 mm |
| April | -0.3 °C | 12.6 °C | 96.77 mm |
| May | 5.9 °C | 19.4 °C | 98.3 mm |
| June | 10.7 °C | 23.8 °C | 117.35 mm |
| July | 13.2 °C | 25.9 °C | 123.7 mm |
| August | 12.4 °C | 25.1 °C | 111 mm |
| September | 8.8 °C | 21.6 °C | 109.22 mm |
| October | 2.9 °C | 14.7 °C | 109.73 mm |
| November | -1.8 °C | 7.7 °C | 98.04 mm |
| December | -6.2 °C | 1.9 °C | 98.3 mm |
| Annual | 1.6 °C | 13.1 °C | 1203.71 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |