Newark, New Jersey has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 46.2 °F (low) to 63.7 °F (high). Annual precipitation averages 48.1 Inches. Newark 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. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 24.8 °F | 39.9 °F | 3.56 in. |
| February | 26.4 °F | 42.6 °F | 2.88 in. |
| March | 33.0 °F | 50.4 °F | 4.26 in. |
| April | 43.3 °F | 62.1 °F | 4.02 in. |
| May | 53.0 °F | 72.1 °F | 4.03 in. |
| June | 62.6 °F | 81.4 °F | 4.46 in. |
| July | 68.2 °F | 86.4 °F | 4.54 in. |
| August | 66.7 °F | 84.7 °F | 4.44 in. |
| September | 59.9 °F | 78.0 °F | 4.11 in. |
| October | 48.0 °F | 66.1 °F | 4.29 in. |
| November | 38.2 °F | 55.1 °F | 3.43 in. |
| December | 30.7 °F | 45.1 °F | 4.07 in. |
| Annual | 46.2 °F | 63.7 °F | 48.09 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| 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 6b : -5°F to 0°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |