Newport, Delaware has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 45.8 °F (low) to 63.8 °F (high). Annual precipitation averages 47.5 Inches. Newport 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 | 24.8 °F | 40.3 °F | 3.46 in. |
| February | 25.8 °F | 43.0 °F | 2.89 in. |
| March | 33.0 °F | 51.0 °F | 4.32 in. |
| April | 43.4 °F | 63.0 °F | 3.65 in. |
| May | 53.2 °F | 72.4 °F | 3.76 in. |
| June | 62.6 °F | 81.5 °F | 4.67 in. |
| July | 67.8 °F | 86.0 °F | 4.67 in. |
| August | 66.2 °F | 84.0 °F | 4.28 in. |
| September | 59.2 °F | 77.9 °F | 4.35 in. |
| October | 46.8 °F | 66.1 °F | 3.98 in. |
| November | 36.7 °F | 55.2 °F | 3.23 in. |
| December | 29.7 °F | 45.3 °F | 4.24 in. |
| Annual | 45.8 °F | 63.8 °F | 47.5 in. |
| 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 : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |