Crompond, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 41.8 °F (low) to 61.5 °F (high). Annual precipitation averages 51.1 Inches. Crompond is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 19.9 °F | 36.8 °F | 3.69 in. |
| February | 21.7 °F | 39.8 °F | 2.86 in. |
| March | 28.6 °F | 48.1 °F | 4.04 in. |
| April | 39.3 °F | 61.1 °F | 3.94 in. |
| May | 49.0 °F | 71.6 °F | 3.75 in. |
| June | 58.3 °F | 79.5 °F | 4.91 in. |
| July | 63.5 °F | 84.4 °F | 4.65 in. |
| August | 62.3 °F | 82.6 °F | 5.12 in. |
| September | 54.8 °F | 75.6 °F | 4.97 in. |
| October | 43.5 °F | 64.0 °F | 4.68 in. |
| November | 34.1 °F | 52.5 °F | 4.21 in. |
| December | 26.1 °F | 41.7 °F | 4.24 in. |
| Annual | 41.8 °F | 61.5 °F | 51.06 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| 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 | Dfb - Humid Continental Mild Summer, Wet All Year |