Hammonton New Jersey Climate Data

Monthly Average Climate Data for Hammonton New Jersey

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-4.5 °C5.6 °C92.46 mm
February-3.8 °C6.9 °C73.91 mm
March-0.1 °C11.1 °C115.82 mm
April5.4 °C17.6 °C89.15 mm
May10.8 °C22.7 °C90.42 mm
June15.9 °C27.8 °C105.41 mm
July18.9 °C30.2 °C123.19 mm
August17.9 °C29.2 °C120.9 mm
September14.2 °C25.8 °C106.17 mm
October7.5 °C19.3 °C103.89 mm
November1.9 °C13.5 °C83.82 mm
December-1.8 °C8.3 °C109.98 mm
Annual6.9 °C18.2 °C1215.12 mm

Climate Data for Hammonton New Jersey

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 7a : -17.8°C to -15°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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