Bayonne, New Jersey has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 8.5 °C (low) to 17.5 °C (high). Annual precipitation averages 1207.3 Millimeters. Bayonne 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 | -3.4 °C | 4.6 °C | 89.41 mm |
| February | -2.6 °C | 5.9 °C | 72.64 mm |
| March | 1.1 °C | 10.2 °C | 105.41 mm |
| April | 6.6 °C | 16.7 °C | 101.35 mm |
| May | 12.1 °C | 22.1 °C | 98.04 mm |
| June | 17.4 °C | 27.2 °C | 112.52 mm |
| July | 20.6 °C | 30 °C | 116.33 mm |
| August | 19.9 °C | 29.1 °C | 112.27 mm |
| September | 16.2 °C | 25.5 °C | 103.38 mm |
| October | 9.6 °C | 18.9 °C | 108.2 mm |
| November | 4.2 °C | 12.8 °C | 85.09 mm |
| December | -0.1 °C | 7.4 °C | 102.62 mm |
| Annual | 8.5 °C | 17.5 °C | 1207.26 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 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 |