Jamesburg New Jersey Climate Data

Monthly Average Climate Data for Jamesburg New Jersey

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January23.2 °F40.3 °F3.6 in.
February24.6 °F42.9 °F2.76 in.
March31.5 °F50.6 °F4.32 in.
April41.4 °F62.8 °F3.82 in.
May51.0 °F72.7 °F3.98 in.
June60.0 °F81.7 °F4.57 in.
July65.6 °F86.6 °F4.87 in.
August63.9 °F84.5 °F4.55 in.
September56.6 °F78.3 °F4.19 in.
October45.0 °F66.1 °F4.07 in.
November35.0 °F55.7 °F3.39 in.
December28.1 °F45.4 °F4.37 in.
Annual43.8 °F64 °F48.49 in.

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 : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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