Hilton Head Island South Carolina Climate Data

Monthly Average Climate Data for Hilton Head Island South Carolina

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January41.1 °F59.6 °F3.67 in.
February43.6 °F62.5 °F3.68 in.
March49.5 °F68.2 °F3.09 in.
April56.9 °F75.1 °F3.13 in.
May65.4 °F81.9 °F2.9 in.
June71.8 °F86.9 °F5.44 in.
July74.7 °F89.6 °F6.54 in.
August74.0 °F88.3 °F8.02 in.
September70.2 °F84.3 °F6.15 in.
October60.6 °F77.5 °F4.67 in.
November50.1 °F68.8 °F3.01 in.
December44.0 °F62.1 °F3.68 in.
Annual58.5 °F75.4 °F53.98 in.

Climate Data for Hilton Head Island South Carolina

Average First Frost DateDec. 11 - Dec. 20
Average Last Frost DateFeb. 21 - Feb. 29
Average Days With Frost10-20 Days
Plant Hardiness Zone - 2023Zone 9a : 20°F to 25°F
Plant Hardiness Zone - 2012Zone 8b : 15°F to 20°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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