Keasbey, New Jersey has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7.5 °C (low) to 17.8 °C (high). Annual precipitation averages 1227.6 Millimeters. Keasbey is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.1 °C | 4.7 °C | 90.93 mm |
| February | -3.3 °C | 6.2 °C | 71.63 mm |
| March | 0.5 °C | 10.6 °C | 106.43 mm |
| April | 5.9 °C | 17.2 °C | 98.55 mm |
| May | 11.3 °C | 22.7 °C | 100.33 mm |
| June | 16.5 °C | 27.7 °C | 115.57 mm |
| July | 19.6 °C | 30.4 °C | 123.95 mm |
| August | 18.7 °C | 29.3 °C | 114.55 mm |
| September | 14.9 °C | 25.7 °C | 107.44 mm |
| October | 8.4 °C | 19 °C | 106.43 mm |
| November | 3 °C | 13.1 °C | 85.34 mm |
| December | -1.1 °C | 7.5 °C | 106.43 mm |
| Annual | 7.5 °C | 17.8 °C | 1227.58 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 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 | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |