Hilton Head Island South Carolina Climate Data

Monthly Average Climate Data for Hilton Head Island South Carolina

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January5.1 °C15.3 °C93.22 mm
February6.4 °C16.9 °C93.47 mm
March9.7 °C20.1 °C78.49 mm
April13.8 °C23.9 °C79.5 mm
May18.6 °C27.7 °C73.66 mm
June22.1 °C30.5 °C138.18 mm
July23.7 °C32 °C166.12 mm
August23.3 °C31.3 °C203.71 mm
September21.2 °C29.1 °C156.21 mm
October15.9 °C25.3 °C118.62 mm
November10.1 °C20.4 °C76.45 mm
December6.7 °C16.7 °C93.47 mm
Annual14.7 °C24.1 °C1371.1 mm

Climate Data for Hilton Head Island South Carolina

Average First Frost DateDec. 11 - Dec. 20
Average Last Frost DateMar. 1 - Mar. 10
Average Days With Frost10-20 Days
Plant Hardiness Zone - 2023Zone 9a : -6.7°C to -3.9°C
Plant Hardiness Zone - 2012Zone 8b : -9.4°C to -6.7°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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