Springfield, 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 17.7 °C (high). Annual precipitation averages 1237.5 Millimeters. Springfield is located in USDA Plant Hardiness Zone 7a. 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 | -5 °C | 4.3 °C | 91.44 mm |
| February | -4.2 °C | 5.8 °C | 73.15 mm |
| March | -0.3 °C | 10.4 °C | 106.68 mm |
| April | 5.4 °C | 17.2 °C | 100.84 mm |
| May | 10.7 °C | 22.7 °C | 103.63 mm |
| June | 15.9 °C | 27.7 °C | 115.82 mm |
| July | 18.8 °C | 30.5 °C | 118.11 mm |
| August | 17.9 °C | 29.5 °C | 114.05 mm |
| September | 14 °C | 25.7 °C | 108.46 mm |
| October | 7.4 °C | 19 °C | 112.27 mm |
| November | 2.1 °C | 12.7 °C | 87.38 mm |
| December | -1.9 °C | 7.1 °C | 105.66 mm |
| Annual | 6.7 °C | 17.7 °C | 1237.49 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 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 |