Trenton New Jersey Climate Data

Monthly Average Climate Data for Trenton New Jersey

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January24.1 °F40.6 °F3.55 in.
February25.5 °F43.3 °F2.76 in.
March32.6 °F51.1 °F4.35 in.
April42.5 °F63.2 °F3.58 in.
May52.2 °F72.7 °F4.0 in.
June61.5 °F81.8 °F4.44 in.
July66.9 °F86.4 °F5.01 in.
August65.2 °F84.7 °F4.47 in.
September58.1 °F78.4 °F3.99 in.
October46.4 °F66.4 °F3.95 in.
November36.4 °F55.7 °F3.35 in.
December29.0 °F45.6 °F4.36 in.
Annual45 °F64.2 °F47.81 in.

Climate Data for Trenton New Jersey

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
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 ClassificationCfa - Humid Subtropical Climate