Sussex New Jersey Climate Data

Monthly Average Climate Data for Sussex New Jersey

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January16.8 °F35.6 °F3.25 in.
February18.2 °F38.9 °F2.72 in.
March25.8 °F47.3 °F3.86 in.
April36.4 °F60.4 °F3.84 in.
May46.7 °F71.0 °F3.45 in.
June55.9 °F79.0 °F4.65 in.
July60.7 °F83.8 °F4.04 in.
August59.0 °F81.8 °F4.44 in.
September51.6 °F75.4 °F4.14 in.
October40.2 °F63.4 °F4.35 in.
November30.1 °F51.5 °F3.31 in.
December23.0 °F40.7 °F3.99 in.
Annual38.7 °F60.7 °F46.04 in.

Climate Data for Sussex New Jersey

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year