Gorham, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 38.9 °F (low) to 57.2 °F (high). Annual precipitation averages 36.3 Inches. Gorham is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.9 °F | 32.5 °F | 2.18 in. |
| February | 17.5 °F | 34.4 °F | 1.84 in. |
| March | 24.3 °F | 42.7 °F | 2.62 in. |
| April | 34.9 °F | 55.3 °F | 3.02 in. |
| May | 46.5 °F | 67.9 °F | 3.19 in. |
| June | 55.9 °F | 76.2 °F | 3.72 in. |
| July | 60.6 °F | 80.4 °F | 3.94 in. |
| August | 59.1 °F | 78.9 °F | 3.46 in. |
| September | 52.3 °F | 72.6 °F | 3.47 in. |
| October | 42.1 °F | 60.0 °F | 3.63 in. |
| November | 32.5 °F | 48.3 °F | 2.73 in. |
| December | 23.8 °F | 37.7 °F | 2.48 in. |
| Annual | 38.9 °F | 57.2 °F | 36.28 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |