Rumson New Jersey Climate Data

Monthly Average Climate Data for Rumson New Jersey

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-3.3 °C4.6 °C94.49 mm
February-2.6 °C5.6 °C71.63 mm
March1 °C9.1 °C105.66 mm
April6.3 °C14.9 °C99.31 mm
May11.5 °C20.1 °C92.46 mm
June16.9 °C25.4 °C110.74 mm
July20.4 °C28.3 °C104.65 mm
August19.9 °C27.5 °C123.7 mm
September16.3 °C24.2 °C97.28 mm
October9.9 °C18.3 °C108.97 mm
November4.3 °C12.6 °C79.25 mm
December-0.2 °C7.7 °C110.24 mm
Annual8.4 °C16.5 °C1198.38 mm

Climate Data for Rumson New Jersey

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7b : -15°C to -12.2°C
Plant Hardiness Zone - 2012Zone 7a : -17.8°C to -15°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
2024 plantmaps.com