Newfield, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 37.1 °F (low) to 56.7 °F (high). Annual precipitation averages 40.2 Inches. Newfield is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 14.9 °F | 31.1 °F | 2.46 in. |
| February | 16.1 °F | 33.4 °F | 2.13 in. |
| March | 22.8 °F | 41.4 °F | 3.01 in. |
| April | 33.9 °F | 55.3 °F | 3.52 in. |
| May | 44.9 °F | 67.9 °F | 3.36 in. |
| June | 53.8 °F | 76.2 °F | 4.24 in. |
| July | 58.4 °F | 80.5 °F | 3.98 in. |
| August | 57.1 °F | 79.3 °F | 3.96 in. |
| September | 50.1 °F | 72.3 °F | 4.03 in. |
| October | 39.9 °F | 59.6 °F | 3.73 in. |
| November | 30.7 °F | 47.0 °F | 2.95 in. |
| December | 22.2 °F | 36.2 °F | 2.81 in. |
| Annual | 37.1 °F | 56.7 °F | 40.18 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |