Penns Grove New Jersey Climate Data

Monthly Average Climate Data for Penns Grove New Jersey

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January25.9 °F40.6 °F3.53 in.
February27.1 °F42.9 °F2.92 in.
March34.0 °F50.6 °F4.34 in.
April44.5 °F62.7 °F3.74 in.
May54.2 °F72.1 °F3.74 in.
June63.8 °F81.3 °F4.52 in.
July69.2 °F85.7 °F4.76 in.
August67.6 °F84.1 °F4.32 in.
September60.6 °F77.9 °F4.2 in.
October48.4 °F66.1 °F3.78 in.
November38.2 °F55.2 °F2.99 in.
December30.8 °F45.6 °F4.12 in.
Annual47 °F63.7 °F46.96 in.

Climate Data for Penns Grove New Jersey

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7b : 5°F to 10°F
Plant Hardiness Zone - 2012Zone 7a : 0°F to 5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCfa - Humid Subtropical Climate