Mount Hermon New Jersey Climate Data

Monthly Average Climate Data for Mount Hermon New Jersey

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.9 °F36.9 °F3.51 in.
February20.3 °F40.0 °F2.85 in.
March27.2 °F48.2 °F3.94 in.
April37.7 °F61.1 °F3.87 in.
May47.9 °F71.1 °F4.12 in.
June57.3 °F79.3 °F4.89 in.
July61.8 °F84.0 °F4.68 in.
August60.1 °F82.1 °F4.8 in.
September52.8 °F75.6 °F4.84 in.
October41.3 °F64.0 °F4.72 in.
November31.2 °F52.4 °F3.39 in.
December24.3 °F42.1 °F4.23 in.
Annual40.1 °F61.4 °F49.84 in.

Climate Data for Mount Hermon New Jersey

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 21 - May 31
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 ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year