Hopatcong New Jersey Climate Data

Monthly Average Climate Data for Hopatcong New Jersey

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-7.2 °C1.8 °C94.74 mm
February-6.7 °C3.1 °C79.76 mm
March-2.3 °C7.7 °C107.44 mm
April3.9 °C14.9 °C98.81 mm
May9.4 °C20.6 °C102.11 mm
June15.2 °C25.8 °C130.56 mm
July17.1 °C28.5 °C112.27 mm
August16.8 °C27.3 °C121.41 mm
September12.4 °C23.4 °C122.43 mm
October6.4 °C16.7 °C113.03 mm
November0.9 °C10.5 °C90.17 mm
December-3.4 °C4.5 °C115.57 mm
Annual5.2 °C15.4 °C1288.3 mm

Climate Data for Hopatcong New Jersey

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6b : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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