Dorchester New Jersey Climate Data

Monthly Average Climate Data for Dorchester New Jersey

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-3.5 °C6 °C84.84 mm
February-3.1 °C7.1 °C76.71 mm
March0.6 °C10.9 °C111.51 mm
April6.2 °C17.3 °C88.65 mm
May11.4 °C22.3 °C89.15 mm
June16.8 °C27.3 °C99.31 mm
July19.8 °C29.8 °C115.57 mm
August18.9 °C28.8 °C118.62 mm
September15.7 °C25.7 °C98.3 mm
October9.4 °C19.6 °C102.87 mm
November3.7 °C13.8 °C81.53 mm
December-0.6 °C8.7 °C104.9 mm
Annual7.9 °C18.1 °C1171.96 mm

Climate Data for Dorchester New Jersey

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 11 - May 20
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7b : -15°C to -12.2°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate
2024 plantmaps.com