Seneca Knolls, 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 57.1 °F (high). Annual precipitation averages 43.7 Inches. Seneca Knolls is located in USDA Plant Hardiness Zone 6a. 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 | 15.2 °F | 31.1 °F | 3.32 in. |
| February | 16.1 °F | 33.2 °F | 2.87 in. |
| March | 23.5 °F | 41.1 °F | 3.16 in. |
| April | 35.0 °F | 55.7 °F | 3.52 in. |
| May | 46.5 °F | 68.6 °F | 3.59 in. |
| June | 55.5 °F | 76.6 °F | 3.95 in. |
| July | 60.3 °F | 81.2 °F | 3.97 in. |
| August | 58.9 °F | 79.9 °F | 3.88 in. |
| September | 51.9 °F | 73.1 °F | 3.68 in. |
| October | 41.8 °F | 59.8 °F | 4.4 in. |
| November | 32.5 °F | 47.8 °F | 3.68 in. |
| December | 22.9 °F | 36.6 °F | 3.69 in. |
| Annual | 38.3 °F | 57.1 °F | 43.71 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°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 |