Delaware New Jersey Climate Data

Monthly Average Climate Data for Delaware New Jersey

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-6.8 °C3.1 °C87.63 mm
February-6.1 °C4.9 °C71.63 mm
March-2.2 °C9.5 °C99.57 mm
April3.4 °C16.6 °C97.79 mm
May9.2 °C22.1 °C105.66 mm
June14.2 °C26.4 °C122.68 mm
July16.9 °C29.2 °C119.89 mm
August15.9 °C28.1 °C120.9 mm
September12.1 °C24.6 °C121.41 mm
October5.5 °C18.2 °C120.9 mm
November0.1 °C11.9 °C86.36 mm
December-3.8 °C6.1 °C107.44 mm
Annual4.9 °C16.7 °C1261.86 mm

Climate Data for Delaware New Jersey

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 7a : -17.8°C to -15°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
2024 plantmaps.com