North Amityville, New York has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 46.2 °F (low) to 61.7 °F (high). Annual precipitation averages 45.8 Inches. North Amityville is located in USDA Plant Hardiness Zone 7b. 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 | 25.7 °F | 39.5 °F | 3.78 in. |
| February | 26.9 °F | 41.6 °F | 3.08 in. |
| March | 32.9 °F | 48.2 °F | 4.38 in. |
| April | 42.1 °F | 59.0 °F | 4.12 in. |
| May | 51.7 °F | 68.7 °F | 3.4 in. |
| June | 61.5 °F | 77.9 °F | 3.89 in. |
| July | 67.5 °F | 83.8 °F | 3.26 in. |
| August | 66.5 °F | 82.3 °F | 4.05 in. |
| September | 59.8 °F | 75.8 °F | 3.73 in. |
| October | 48.9 °F | 64.6 °F | 4.51 in. |
| November | 39.1 °F | 54.1 °F | 3.31 in. |
| December | 31.7 °F | 44.9 °F | 4.33 in. |
| Annual | 46.2 °F | 61.7 °F | 45.84 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 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |