Newark, Delaware has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44.8 °F (low) to 64.3 °F (high). Annual precipitation averages 47.9 Inches. Newark 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 | 24.1 °F | 40.9 °F | 3.47 in. |
| February | 24.9 °F | 43.4 °F | 2.89 in. |
| March | 32.1 °F | 51.5 °F | 4.31 in. |
| April | 42.5 °F | 63.6 °F | 3.67 in. |
| May | 52.3 °F | 73.1 °F | 3.84 in. |
| June | 61.4 °F | 82.0 °F | 4.73 in. |
| July | 66.6 °F | 86.6 °F | 4.77 in. |
| August | 65.2 °F | 84.7 °F | 4.22 in. |
| September | 58.0 °F | 78.5 °F | 4.51 in. |
| October | 45.8 °F | 66.7 °F | 4.08 in. |
| November | 35.9 °F | 55.3 °F | 3.24 in. |
| December | 29.0 °F | 45.3 °F | 4.13 in. |
| Annual | 44.8 °F | 64.3 °F | 47.86 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 |