Washington New Jersey Climate Data

Monthly Average Climate Data for Washington New Jersey

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January19.7 °F37.4 °F3.65 in.
February20.9 °F40.4 °F3.0 in.
March27.8 °F48.6 °F3.88 in.
April38.0 °F61.3 °F4.02 in.
May48.3 °F71.2 °F4.24 in.
June57.4 °F79.5 °F4.92 in.
July62.3 °F84.3 °F4.9 in.
August60.7 °F82.3 °F4.92 in.
September53.5 °F75.8 °F5.13 in.
October41.9 °F64.3 °F4.64 in.
November31.8 °F52.8 °F3.52 in.
December25.0 °F42.6 °F4.41 in.
Annual40.6 °F61.7 °F51.23 in.

Climate Data for Washington 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
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