Waterville, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 35.8 °F (low) to 55.5 °F (high). Annual precipitation averages 47.4 Inches. Waterville 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 | 11.9 °F | 28.9 °F | 3.22 in. |
| February | 14.6 °F | 32.3 °F | 2.82 in. |
| March | 20.8 °F | 39.6 °F | 3.48 in. |
| April | 33.1 °F | 54.4 °F | 3.86 in. |
| May | 44.6 °F | 67.2 °F | 4.1 in. |
| June | 53.3 °F | 75.8 °F | 4.79 in. |
| July | 58.0 °F | 80.0 °F | 4.66 in. |
| August | 56.5 °F | 78.4 °F | 4.4 in. |
| September | 49.4 °F | 71.7 °F | 4.17 in. |
| October | 38.8 °F | 58.7 °F | 4.43 in. |
| November | 29.2 °F | 44.9 °F | 3.73 in. |
| December | 19.6 °F | 33.7 °F | 3.7 in. |
| Annual | 35.8 °F | 55.5 °F | 47.36 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 |