Harvard Massachusetts Climate Data

Monthly Average Climate Data for Harvard Massachusetts

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.2 °C1.3 °C92.96 mm
February-8.3 °C2.8 °C86.11 mm
March-3.8 °C7.1 °C111.25 mm
April2.1 °C14.4 °C105.92 mm
May8.1 °C20.4 °C95.5 mm
June13.3 °C25.2 °C112.78 mm
July16.5 °C28.4 °C95.5 mm
August15.6 °C27.6 °C101.35 mm
September11 °C23.7 °C102.36 mm
October4.6 °C16.7 °C124.46 mm
November-0.8 °C10.4 °C98.3 mm
December-5.5 °C4.5 °C116.08 mm
Annual3.6 °C15.2 °C1242.57 mm

Climate Data for Harvard Massachusetts

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6a : -23.3°C to -20.6°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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