Three Bridges, New Jersey has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.9 °C (low) to 17.4 °C (high). Annual precipitation averages 1271 Millimeters. Three Bridges 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.7 °C | 4.1 °C | 92.2 mm |
| February | -5.1 °C | 5.4 °C | 73.91 mm |
| March | -1.1 °C | 10.1 °C | 108.71 mm |
| April | 4.5 °C | 17.1 °C | 102.87 mm |
| May | 10.1 °C | 22.4 °C | 107.44 mm |
| June | 15.1 °C | 27.4 °C | 117.86 mm |
| July | 18 °C | 30.1 °C | 133.35 mm |
| August | 17.2 °C | 29 °C | 115.57 mm |
| September | 13 °C | 25.3 °C | 110.74 mm |
| October | 6.7 °C | 18.6 °C | 107.95 mm |
| November | 0.9 °C | 12.5 °C | 86.61 mm |
| December | -2.8 °C | 6.8 °C | 113.79 mm |
| Annual | 5.9 °C | 17.4 °C | 1271 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| 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 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |