Dover Massachusetts Climate Data

Monthly Average Climate Data for Dover Massachusetts

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-7.7 °C2.6 °C98.3 mm
February-6.8 °C4 °C85.09 mm
March-2.7 °C7.9 °C117.35 mm
April2.9 °C14.7 °C109.73 mm
May8.4 °C20.6 °C92.2 mm
June13.6 °C25.4 °C106.17 mm
July16.9 °C28.6 °C91.44 mm
August16 °C27.8 °C98.81 mm
September11.8 °C23.9 °C97.54 mm
October5.4 °C17.3 °C123.44 mm
November0.4 °C11.3 °C102.87 mm
December-4.2 °C5.7 °C119.89 mm
Annual4.5 °C15.8 °C1242.83 mm

Climate Data for Dover Massachusetts

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6b : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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