Elmsford, New York has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43.9 °F (low) to 62.1 °F (high). Annual precipitation averages 49.3 Inches. Elmsford is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 22.4 °F | 38.1 °F | 3.73 in. |
| February | 23.9 °F | 40.9 °F | 2.75 in. |
| March | 30.8 °F | 48.5 °F | 4.1 in. |
| April | 40.9 °F | 61.0 °F | 3.82 in. |
| May | 50.6 °F | 71.0 °F | 3.72 in. |
| June | 60.1 °F | 80.0 °F | 4.57 in. |
| July | 65.6 °F | 84.8 °F | 4.31 in. |
| August | 64.2 °F | 82.9 °F | 4.86 in. |
| September | 57.1 °F | 76.3 °F | 4.74 in. |
| October | 45.7 °F | 64.5 °F | 4.54 in. |
| November | 36.0 °F | 53.7 °F | 3.95 in. |
| December | 29.1 °F | 43.2 °F | 4.24 in. |
| Annual | 43.9 °F | 62.1 °F | 49.33 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |