Keeseville, 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 55.3 °F (high). Annual precipitation averages 33.1 Inches. Keeseville is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 9.0 °F | 27.5 °F | 1.88 in. |
| February | 10.9 °F | 30.7 °F | 1.66 in. |
| March | 20.5 °F | 39.7 °F | 2.21 in. |
| April | 33.5 °F | 53.9 °F | 2.59 in. |
| May | 45.5 °F | 67.3 °F | 2.88 in. |
| June | 54.8 °F | 76.0 °F | 4.18 in. |
| July | 59.8 °F | 80.8 °F | 3.41 in. |
| August | 58.0 °F | 79.0 °F | 3.16 in. |
| September | 50.0 °F | 71.8 °F | 2.78 in. |
| October | 38.9 °F | 58.0 °F | 3.39 in. |
| November | 28.7 °F | 45.3 °F | 2.67 in. |
| December | 17.6 °F | 33.7 °F | 2.26 in. |
| Annual | 35.6 °F | 55.3 °F | 33.07 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°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 |