Delaware New Jersey Climate Data

Monthly Average Climate Data for Delaware New Jersey

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January19.7 °F37.6 °F3.45 in.
February21.1 °F40.8 °F2.82 in.
March28.1 °F49.1 °F3.92 in.
April38.1 °F61.9 °F3.85 in.
May48.6 °F71.8 °F4.16 in.
June57.5 °F79.6 °F4.83 in.
July62.4 °F84.5 °F4.72 in.
August60.6 °F82.5 °F4.76 in.
September53.7 °F76.2 °F4.78 in.
October41.9 °F64.7 °F4.76 in.
November32.2 °F53.5 °F3.4 in.
December25.2 °F42.9 °F4.23 in.
Annual40.8 °F62.1 °F49.68 in.

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 : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year