Princeton Junction New Jersey Climate Data

Monthly Average Climate Data for Princeton Junction New Jersey

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-4.8 °C4.6 °C88.39 mm
February-3.9 °C6 °C68.07 mm
March-0.1 °C10.4 °C111 mm
April5.4 °C17.2 °C95.5 mm
May10.8 °C22.6 °C102.62 mm
June15.8 °C27.6 °C116.84 mm
July18.9 °C30.2 °C127 mm
August17.9 °C29.2 °C116.08 mm
September13.9 °C25.7 °C106.93 mm
October7.6 °C18.9 °C100.58 mm
November1.9 °C13 °C85.34 mm
December-2.1 °C7.3 °C112.27 mm
Annual6.8 °C17.7 °C1230.62 mm

Climate Data for Princeton Junction New Jersey

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
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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