Mount Kisco, New York has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42.5 °F (low) to 61.8 °F (high). Annual precipitation averages 49.5 Inches. Mount Kisco is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 20.9 °F | 37.3 °F | 3.75 in. |
| February | 22.6 °F | 40.3 °F | 2.66 in. |
| March | 29.5 °F | 48.1 °F | 3.88 in. |
| April | 39.8 °F | 61.3 °F | 3.9 in. |
| May | 49.4 °F | 71.6 °F | 3.54 in. |
| June | 58.8 °F | 80.0 °F | 4.38 in. |
| July | 64.3 °F | 84.9 °F | 4.74 in. |
| August | 62.9 °F | 82.8 °F | 5.04 in. |
| September | 55.7 °F | 75.9 °F | 4.72 in. |
| October | 44.4 °F | 64.2 °F | 4.69 in. |
| November | 34.7 °F | 52.8 °F | 4.13 in. |
| December | 27.1 °F | 42.1 °F | 4.04 in. |
| Annual | 42.5 °F | 61.8 °F | 49.47 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |