Shiloh, New Jersey has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.8 °C (low) to 18.2 °C (high). Annual precipitation averages 1138.2 Millimeters. Shiloh is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -3.7 °C | 5.5 °C | 83.82 mm |
| February | -3 °C | 6.9 °C | 71.63 mm |
| March | 0.7 °C | 11.1 °C | 102.87 mm |
| April | 6.3 °C | 17.5 °C | 86.87 mm |
| May | 11.8 °C | 22.8 °C | 90.42 mm |
| June | 17 °C | 27.8 °C | 110.24 mm |
| July | 19.9 °C | 30.2 °C | 113.79 mm |
| August | 18.9 °C | 29.1 °C | 109.73 mm |
| September | 15.2 °C | 25.9 °C | 99.82 mm |
| October | 8.7 °C | 19.6 °C | 94.23 mm |
| November | 3.1 °C | 13.6 °C | 76.2 mm |
| December | -0.9 °C | 8.2 °C | 98.55 mm |
| Annual | 7.8 °C | 18.2 °C | 1138.17 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| 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 | Cfa - Humid Subtropical Climate |