Yorkville, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 38.3 °F (low) to 57.7 °F (high). Annual precipitation averages 47 Inches. Yorkville is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 14.6 °F | 30.6 °F | 3.15 in. |
| February | 15.2 °F | 33.3 °F | 2.8 in. |
| March | 23.8 °F | 41.6 °F | 3.46 in. |
| April | 35.1 °F | 56.8 °F | 3.92 in. |
| May | 46.4 °F | 70.0 °F | 3.92 in. |
| June | 56.1 °F | 78.3 °F | 4.79 in. |
| July | 60.9 °F | 83.0 °F | 4.39 in. |
| August | 59.6 °F | 81.1 °F | 4.11 in. |
| September | 52.4 °F | 73.9 °F | 3.99 in. |
| October | 41.7 °F | 60.5 °F | 4.67 in. |
| November | 32.0 °F | 47.6 °F | 3.96 in. |
| December | 22.1 °F | 36.2 °F | 3.82 in. |
| Annual | 38.3 °F | 57.7 °F | 46.98 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°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 |