Unadilla, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 35.6 °F (low) to 58 °F (high). Annual precipitation averages 43 Inches. Unadilla is located in USDA Plant Hardiness Zone 5b. 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 | 13.3 °F | 31.9 °F | 2.67 in. |
| February | 14.4 °F | 35.1 °F | 2.34 in. |
| March | 20.9 °F | 43.1 °F | 3.0 in. |
| April | 32.1 °F | 57.6 °F | 3.49 in. |
| May | 43.4 °F | 70.1 °F | 3.69 in. |
| June | 52.5 °F | 78.0 °F | 4.7 in. |
| July | 57.3 °F | 82.1 °F | 4.29 in. |
| August | 55.9 °F | 80.1 °F | 4.37 in. |
| September | 49.0 °F | 73.2 °F | 4.06 in. |
| October | 38.5 °F | 60.7 °F | 3.99 in. |
| November | 28.8 °F | 47.6 °F | 3.14 in. |
| December | 21.2 °F | 36.9 °F | 3.25 in. |
| Annual | 35.6 °F | 58 °F | 42.99 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 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 |