Hammond, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 36.3 °F (low) to 54.3 °F (high). Annual precipitation averages 38.7 Inches. Hammond is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 9.8 °F | 26.8 °F | 3.01 in. |
| February | 10.8 °F | 29.1 °F | 2.35 in. |
| March | 20.7 °F | 38.1 °F | 2.56 in. |
| April | 33.9 °F | 52.5 °F | 3.22 in. |
| May | 45.6 °F | 65.7 °F | 3.22 in. |
| June | 55.2 °F | 74.2 °F | 3.59 in. |
| July | 60.4 °F | 79.1 °F | 3.37 in. |
| August | 58.9 °F | 78.4 °F | 3.18 in. |
| September | 51.0 °F | 71.2 °F | 3.47 in. |
| October | 40.5 °F | 57.8 °F | 4.23 in. |
| November | 30.2 °F | 45.2 °F | 3.37 in. |
| December | 19.1 °F | 33.1 °F | 3.16 in. |
| Annual | 36.3 °F | 54.3 °F | 38.73 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |