Siasconset Massachusetts Climate Data

Monthly Average Climate Data for Siasconset Massachusetts

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-2.9 °C4 °C104.14 mm
February-2.5 °C4.2 °C93.47 mm
March0.2 °C6.4 °C123.95 mm
April4.6 °C11.1 °C108.71 mm
May9.2 °C15.6 °C77.72 mm
June14.1 °C20.2 °C74.42 mm
July18.1 °C24.1 °C65.02 mm
August18.2 °C24.2 °C80.77 mm
September15.4 °C21.5 °C95.25 mm
October10.3 °C16.4 °C115.57 mm
November5.2 °C11.6 °C103.63 mm
December0.4 °C7.2 °C122.43 mm
Annual7.5 °C13.9 °C1165.08 mm

Climate Data for Siasconset Massachusetts

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateMay 1 - May 10
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7b : -15°C to -12.2°C
Plant Hardiness Zone - 2012Zone 7a : -17.8°C to -15°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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