Hopatcong New Jersey Climate Data

Monthly Average Climate Data for Hopatcong New Jersey

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January19.0 °F35.3 °F3.73 in.
February20.0 °F37.6 °F3.14 in.
March27.8 °F45.8 °F4.23 in.
April39.1 °F58.9 °F3.89 in.
May48.9 °F69.1 °F4.02 in.
June59.3 °F78.5 °F5.14 in.
July62.7 °F83.3 °F4.42 in.
August62.2 °F81.2 °F4.78 in.
September54.4 °F74.1 °F4.82 in.
October43.5 °F62.1 °F4.45 in.
November33.7 °F50.9 °F3.55 in.
December25.9 °F40.1 °F4.55 in.
Annual41.4 °F59.7 °F50.72 in.

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 : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
2024 plantmaps.com