Greenwich New Jersey Climate Data

Monthly Average Climate Data for Greenwich New Jersey

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January26.0 °F42.1 °F3.3 in.
February27.2 °F43.7 °F2.86 in.
March34.1 °F51.3 °F4.02 in.
April44.1 °F63.3 °F3.44 in.
May54.0 °F72.7 °F3.6 in.
June63.4 °F81.7 °F4.33 in.
July68.8 °F85.9 °F4.45 in.
August67.1 °F84.0 °F4.28 in.
September60.4 °F78.3 °F3.94 in.
October48.7 °F67.1 °F3.69 in.
November38.3 °F56.1 °F2.99 in.
December30.9 °F46.5 °F3.83 in.
Annual46.9 °F64.4 °F44.73 in.

Climate Data for Greenwich 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 : 5°F to 10°F
Plant Hardiness Zone - 2012Zone 7a : 0°F to 5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate