Florence, New Jersey has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.6 °C (low) to 18.2 °C (high). Annual precipitation averages 1192.5 Millimeters. Florence 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 | -3.9 °C | 5.1 °C | 89.41 mm |
| February | -3.3 °C | 6.6 °C | 68.07 mm |
| March | 0.6 °C | 10.9 °C | 110.24 mm |
| April | 6.1 °C | 17.7 °C | 88.39 mm |
| May | 11.5 °C | 22.9 °C | 99.57 mm |
| June | 16.6 °C | 28 °C | 108.46 mm |
| July | 19.7 °C | 30.5 °C | 122.68 mm |
| August | 18.8 °C | 29.6 °C | 121.67 mm |
| September | 14.9 °C | 26.1 °C | 98.3 mm |
| October | 8.4 °C | 19.4 °C | 97.28 mm |
| November | 2.8 °C | 13.4 °C | 80.26 mm |
| December | -1.2 °C | 7.8 °C | 108.2 mm |
| Annual | 7.6 °C | 18.2 °C | 1192.53 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 | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |