Jamesburg New Jersey Climate Data

Monthly Average Climate Data for Jamesburg New Jersey

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-4.9 °C4.6 °C91.44 mm
February-4.1 °C6.1 °C70.1 mm
March-0.3 °C10.3 °C109.73 mm
April5.2 °C17.1 °C97.03 mm
May10.6 °C22.6 °C101.09 mm
June15.6 °C27.6 °C116.08 mm
July18.7 °C30.3 °C123.7 mm
August17.7 °C29.2 °C115.57 mm
September13.7 °C25.7 °C106.43 mm
October7.2 °C18.9 °C103.38 mm
November1.7 °C13.2 °C86.11 mm
December-2.2 °C7.4 °C111 mm
Annual6.6 °C17.8 °C1231.66 mm

Climate Data for Jamesburg 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
2024 plantmaps.com