Bethpage, New York has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 45.7 °F (low) to 62.1 °F (high). Annual precipitation averages 46.5 Inches. Bethpage 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. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 25.4 °F | 39.7 °F | 3.79 in. |
| February | 26.5 °F | 42.1 °F | 3.08 in. |
| March | 32.5 °F | 49.0 °F | 4.37 in. |
| April | 41.7 °F | 59.9 °F | 4.1 in. |
| May | 51.2 °F | 69.5 °F | 3.48 in. |
| June | 61.0 °F | 78.6 °F | 3.98 in. |
| July | 67.0 °F | 84.0 °F | 3.51 in. |
| August | 65.9 °F | 82.3 °F | 4.14 in. |
| September | 59.2 °F | 75.8 °F | 3.81 in. |
| October | 48.0 °F | 64.8 °F | 4.58 in. |
| November | 38.6 °F | 54.1 °F | 3.35 in. |
| December | 31.2 °F | 45.1 °F | 4.33 in. |
| Annual | 45.7 °F | 62.1 °F | 46.52 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| 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 | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |