Wilmington Massachusetts Climate Data

Monthly Average Climate Data for Wilmington Massachusetts

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-7.9 °C2.1 °C97.03 mm
February-6.9 °C3.6 °C89.92 mm
March-2.9 °C7.6 °C119.63 mm
April2.8 °C14.4 °C107.95 mm
May8.3 °C20.1 °C95 mm
June13.6 °C25.1 °C108.46 mm
July16.8 °C28.4 °C97.28 mm
August16 °C27.6 °C95.25 mm
September11.8 °C23.6 °C97.54 mm
October5.4 °C16.8 °C122.68 mm
November0.3 °C10.9 °C100.58 mm
December-4.3 °C5.2 °C121.67 mm
Annual4.4 °C15.5 °C1252.99 mm

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 : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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