Hawthorne, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 42.9 °F (low) to 61.9 °F (high). Annual precipitation averages 49.8 Inches. Hawthorne 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 | 21.3 °F | 37.8 °F | 3.78 in. |
| February | 22.9 °F | 40.6 °F | 2.72 in. |
| March | 29.9 °F | 48.3 °F | 4.09 in. |
| April | 40.4 °F | 61.0 °F | 3.85 in. |
| May | 50.1 °F | 71.2 °F | 3.63 in. |
| June | 59.3 °F | 79.9 °F | 4.59 in. |
| July | 64.6 °F | 84.7 °F | 4.42 in. |
| August | 63.1 °F | 82.6 °F | 4.95 in. |
| September | 55.9 °F | 76.0 °F | 4.74 in. |
| October | 44.5 °F | 64.3 °F | 4.7 in. |
| November | 35.4 °F | 53.4 °F | 4.17 in. |
| December | 27.9 °F | 42.8 °F | 4.2 in. |
| Annual | 42.9 °F | 61.9 °F | 49.84 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| 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 | Dfb - Humid Continental Mild Summer, Wet All Year |