Sunderland Massachusetts Climate Data

Monthly Average Climate Data for Sunderland Massachusetts

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-10.9 °C-0.3 °C87.88 mm
February-10.1 °C1.4 °C80.01 mm
March-5.4 °C6.1 °C96.52 mm
April0.7 °C13.4 °C101.35 mm
May6.8 °C19.7 °C95.25 mm
June12.1 °C24.6 °C124.71 mm
July15.1 °C27.6 °C108.2 mm
August14 °C26.6 °C120.9 mm
September9.7 °C22.6 °C121.92 mm
October3.6 °C15.2 °C127 mm
November-1.8 °C8.6 °C92.2 mm
December-7 °C2.7 °C106.68 mm
Annual2.2 °C14 °C1262.62 mm

Climate Data for Sunderland Massachusetts

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 6a : -23.3°C to -20.6°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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