Wilmington Massachusetts Climate Data

Monthly Average Climate Data for Wilmington Massachusetts

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.7 °F35.7 °F3.82 in.
February19.5 °F38.4 °F3.54 in.
March26.8 °F45.6 °F4.71 in.
April37.0 °F58.0 °F4.25 in.
May47.0 °F68.2 °F3.74 in.
June56.4 °F77.2 °F4.27 in.
July62.3 °F83.1 °F3.83 in.
August60.8 °F81.6 °F3.75 in.
September53.3 °F74.5 °F3.84 in.
October41.8 °F62.3 °F4.83 in.
November32.6 °F51.6 °F3.96 in.
December24.2 °F41.3 °F4.79 in.
Annual40 °F59.8 °F49.33 in.

Climate Data for Wilmington Massachusetts

Average First Frost DateOct. 11 - Oct. 20
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
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