Medford Lakes, New Jersey has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.7 °C (low) to 18.3 °C (high). Annual precipitation averages 1203.2 Millimeters. Medford Lakes is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.6 °C | 5.3 °C | 93.47 mm |
| February | -4 °C | 6.8 °C | 71.12 mm |
| March | -0.2 °C | 11.1 °C | 113.54 mm |
| April | 5.3 °C | 17.9 °C | 86.87 mm |
| May | 10.6 °C | 23.2 °C | 97.03 mm |
| June | 15.7 °C | 28.1 °C | 104.65 mm |
| July | 18.7 °C | 30.4 °C | 128.52 mm |
| August | 17.7 °C | 29.5 °C | 123.95 mm |
| September | 13.9 °C | 25.9 °C | 100.08 mm |
| October | 7.4 °C | 19.6 °C | 98.55 mm |
| November | 1.9 °C | 13.6 °C | 78.99 mm |
| December | -1.9 °C | 8 °C | 106.43 mm |
| Annual | 6.7 °C | 18.3 °C | 1203.2 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| 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 | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |