Newport, New Jersey has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.3 °C (low) to 17.5 °C (high). Annual precipitation averages 1123.7 Millimeters. Newport 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 | -3.3 °C | 5.6 °C | 82.3 mm |
| February | -2.6 °C | 6.3 °C | 73.66 mm |
| March | 1.1 °C | 10.4 °C | 104.14 mm |
| April | 6.7 °C | 16.6 °C | 85.85 mm |
| May | 12.1 °C | 21.4 °C | 92.46 mm |
| June | 17.4 °C | 26.8 °C | 101.35 mm |
| July | 20.6 °C | 29.2 °C | 110.24 mm |
| August | 19.6 °C | 28.3 °C | 110.24 mm |
| September | 15.8 °C | 25.2 °C | 94.49 mm |
| October | 9.3 °C | 19.1 °C | 95.25 mm |
| November | 3.6 °C | 13.2 °C | 75.95 mm |
| December | -0.6 °C | 8 °C | 97.79 mm |
| Annual | 8.3 °C | 17.5 °C | 1123.72 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| 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 | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |