East Orange, New Jersey has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7.3 °C (low) to 17.3 °C (high). Annual precipitation averages 1233.7 Millimeters. East Orange is located in USDA Plant Hardiness Zone 7a. 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 | -4.7 °C | 4 °C | 91.95 mm |
| February | -3.8 °C | 5.4 °C | 72.9 mm |
| March | 0 °C | 9.9 °C | 108.71 mm |
| April | 5.8 °C | 16.6 °C | 102.11 mm |
| May | 11.1 °C | 22.2 °C | 103.38 mm |
| June | 16.4 °C | 27.2 °C | 115.57 mm |
| July | 19.6 °C | 30.1 °C | 114.05 mm |
| August | 18.7 °C | 29.1 °C | 112.27 mm |
| September | 14.7 °C | 25.3 °C | 106.93 mm |
| October | 8 °C | 18.6 °C | 112.52 mm |
| November | 2.7 °C | 12.4 °C | 88.65 mm |
| December | -1.4 °C | 6.8 °C | 104.65 mm |
| Annual | 7.3 °C | 17.3 °C | 1233.69 mm |
| 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 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |