Lake Mohawk, New Jersey has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 4.9 °C (low) to 15.8 °C (high). Annual precipitation averages 1254.3 Millimeters. Lake Mohawk is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.6 °C | 2.1 °C | 91.44 mm |
| February | -6.7 °C | 3.7 °C | 73.15 mm |
| March | -2.4 °C | 8.1 °C | 105.92 mm |
| April | 3.8 °C | 15.3 °C | 95 mm |
| May | 9.3 °C | 21.1 °C | 99.82 mm |
| June | 14.5 °C | 25.9 °C | 127.76 mm |
| July | 17.2 °C | 28.8 °C | 108.71 mm |
| August | 16.3 °C | 27.7 °C | 122.43 mm |
| September | 12.1 °C | 23.8 °C | 118.87 mm |
| October | 5.7 °C | 17.2 °C | 113.28 mm |
| November | 0.3 °C | 10.7 °C | 88.9 mm |
| December | -3.9 °C | 4.8 °C | 108.97 mm |
| Annual | 4.9 °C | 15.8 °C | 1254.25 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |