Jersey City, New Jersey has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 8.7 °C (low) to 17.3 °C (high). Annual precipitation averages 1195.1 Millimeters. Jersey City 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. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -3.2 °C | 4.3 °C | 89.41 mm |
| February | -2.4 °C | 5.7 °C | 71.37 mm |
| March | 1.2 °C | 9.9 °C | 107.44 mm |
| April | 6.9 °C | 16.3 °C | 102.62 mm |
| May | 12.3 °C | 21.9 °C | 98.04 mm |
| June | 17.7 °C | 27.1 °C | 109.22 mm |
| July | 21 °C | 29.9 °C | 111.51 mm |
| August | 20.2 °C | 28.9 °C | 110.24 mm |
| September | 16.5 °C | 25.3 °C | 101.6 mm |
| October | 10 °C | 18.7 °C | 103.89 mm |
| November | 4.4 °C | 12.7 °C | 85.85 mm |
| December | 0.1 °C | 7.2 °C | 103.89 mm |
| Annual | 8.7 °C | 17.3 °C | 1195.08 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°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 |