Keansburg, New Jersey has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 8.1 °C (low) to 17.2 °C (high). Annual precipitation averages 1213.4 Millimeters. Keansburg 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 | -3.6 °C | 4.8 °C | 93.22 mm |
| February | -2.8 °C | 6.1 °C | 73.15 mm |
| March | 0.7 °C | 9.9 °C | 107.7 mm |
| April | 6.2 °C | 16 °C | 99.31 mm |
| May | 11.4 °C | 21.3 °C | 95.76 mm |
| June | 16.7 °C | 26.2 °C | 113.28 mm |
| July | 20.1 °C | 29.2 °C | 113.54 mm |
| August | 19.4 °C | 28.2 °C | 112.78 mm |
| September | 15.8 °C | 24.9 °C | 104.14 mm |
| October | 9.6 °C | 18.9 °C | 106.93 mm |
| November | 4.1 °C | 12.8 °C | 84.07 mm |
| December | -0.3 °C | 7.8 °C | 109.47 mm |
| Annual | 8.1 °C | 17.2 °C | 1213.35 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 7a : -17.8°C to -15°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |