Westfield New Jersey Climate Data

Monthly Average Climate Data for Westfield New Jersey

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January23.1 °F39.7 °F3.61 in.
February24.5 °F42.5 °F2.88 in.
March31.4 °F50.7 °F4.24 in.
April41.7 °F62.9 °F3.93 in.
May51.3 °F72.8 °F4.04 in.
June60.7 °F81.8 °F4.57 in.
July66.0 °F86.8 °F4.84 in.
August64.3 °F85.0 °F4.47 in.
September57.3 °F78.2 °F4.32 in.
October45.4 °F66.0 °F4.32 in.
November35.9 °F54.9 °F3.43 in.
December28.6 °F44.7 °F4.19 in.
Annual44.2 °F63.8 °F48.84 in.

Climate Data for Westfield 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
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