DeRuyter, 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 55.6 °F (high). Annual precipitation averages 46.5 Inches. DeRuyter 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 Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 12.7 °F | 30.3 °F | 3.14 in. |
| February | 13.9 °F | 32.5 °F | 2.67 in. |
| March | 20.9 °F | 40.4 °F | 3.46 in. |
| April | 32.8 °F | 53.9 °F | 3.93 in. |
| May | 43.9 °F | 66.7 °F | 3.99 in. |
| June | 53.0 °F | 74.9 °F | 4.53 in. |
| July | 57.4 °F | 79.2 °F | 4.63 in. |
| August | 55.9 °F | 77.8 °F | 4.37 in. |
| September | 48.7 °F | 71.2 °F | 4.35 in. |
| October | 38.5 °F | 58.4 °F | 4.34 in. |
| November | 29.2 °F | 46.3 °F | 3.49 in. |
| December | 20.4 °F | 35.3 °F | 3.55 in. |
| Annual | 35.6 °F | 55.6 °F | 46.45 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| 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 |