Newfield, New Jersey has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 45.1 °F (low) to 64.9 °F (high). Annual precipitation averages 48 Inches. Newfield is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 24.3 °F | 42.0 °F | 3.68 in. |
| February | 25.7 °F | 44.3 °F | 3.04 in. |
| March | 32.5 °F | 52.0 °F | 4.52 in. |
| April | 42.6 °F | 63.9 °F | 3.49 in. |
| May | 52.2 °F | 73.5 °F | 3.59 in. |
| June | 61.5 °F | 82.4 °F | 4.33 in. |
| July | 67.0 °F | 86.8 °F | 4.9 in. |
| August | 65.1 °F | 84.7 °F | 4.92 in. |
| September | 58.5 °F | 78.7 °F | 4.13 in. |
| October | 46.4 °F | 67.0 °F | 3.91 in. |
| November | 36.4 °F | 56.2 °F | 3.17 in. |
| December | 29.3 °F | 46.7 °F | 4.27 in. |
| Annual | 45.1 °F | 64.9 °F | 47.95 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |