Mizpah, New Jersey has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.9 °C (low) to 18.2 °C (high). Annual precipitation averages 1219.7 Millimeters. Mizpah is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.5 °C | 5.8 °C | 91.95 mm |
| February | -3.9 °C | 7.2 °C | 76.45 mm |
| March | -0.1 °C | 11.2 °C | 118.11 mm |
| April | 5.4 °C | 17.5 °C | 90.42 mm |
| May | 10.8 °C | 22.6 °C | 88.14 mm |
| June | 16.1 °C | 27.6 °C | 101.85 mm |
| July | 19 °C | 30.2 °C | 123.44 mm |
| August | 17.9 °C | 29 °C | 122.68 mm |
| September | 14.2 °C | 25.8 °C | 102.36 mm |
| October | 7.6 °C | 19.4 °C | 104.65 mm |
| November | 1.9 °C | 13.7 °C | 86.61 mm |
| December | -1.8 °C | 8.5 °C | 113.03 mm |
| Annual | 6.9 °C | 18.2 °C | 1219.69 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 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 | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |