Plainfield New Jersey Climate Data

Monthly Average Climate Data for Plainfield New Jersey

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January22.5 °F39.8 °F3.63 in.
February23.8 °F42.5 °F2.88 in.
March30.8 °F50.6 °F4.25 in.
April41.1 °F63.0 °F3.91 in.
May50.7 °F72.8 °F4.03 in.
June59.9 °F81.7 °F4.55 in.
July65.2 °F86.6 °F4.92 in.
August63.6 °F84.8 °F4.49 in.
September56.4 °F78.0 °F4.34 in.
October44.7 °F65.9 °F4.29 in.
November35.0 °F55.1 °F3.43 in.
December27.8 °F44.8 °F4.23 in.
Annual43.5 °F63.8 °F48.95 in.

Climate Data for Plainfield New Jersey

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
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 ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation