Franklinville, 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 18.3 °C (high). Annual precipitation averages 1234.9 Millimeters. Franklinville 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 Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.1 °C | 5.4 °C | 99.31 mm |
| February | -3.3 °C | 6.7 °C | 77.72 mm |
| March | 0.4 °C | 11 °C | 117.35 mm |
| April | 6.1 °C | 17.8 °C | 91.69 mm |
| May | 11.3 °C | 23.2 °C | 95.25 mm |
| June | 16.6 °C | 28.2 °C | 111.51 mm |
| July | 19.6 °C | 30.6 °C | 124.97 mm |
| August | 18.6 °C | 29.4 °C | 124.71 mm |
| September | 14.8 °C | 25.9 °C | 105.16 mm |
| October | 8.2 °C | 19.4 °C | 99.82 mm |
| November | 2.6 °C | 13.4 °C | 77.98 mm |
| December | -1.2 °C | 8.1 °C | 109.47 mm |
| Annual | 7.5 °C | 18.3 °C | 1234.94 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| 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 |