South Plainfield New Jersey Climate Data

Monthly Average Climate Data for South Plainfield New Jersey

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-5.1 °C4.4 °C91.69 mm
February-4.3 °C6 °C72.64 mm
March-0.5 °C10.5 °C107.19 mm
April5.1 °C17.3 °C98.55 mm
May10.5 °C22.8 °C101.6 mm
June15.6 °C27.7 °C114.55 mm
July18.6 °C30.4 °C127.51 mm
August17.7 °C29.3 °C113.54 mm
September13.7 °C25.6 °C109.98 mm
October7.3 °C18.9 °C107.95 mm
November1.8 °C12.9 °C86.11 mm
December-2.1 °C7.3 °C106.93 mm
Annual6.5 °C17.8 °C1238.24 mm

Climate Data for South Plainfield New Jersey

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
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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