Hilton Head Island, South Carolina gets 48 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Hilton Head Island averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 215 sunny days per year in Hilton Head Island. The US average is 205 sunny days.
Hilton Head Island gets some kind of precipitation, on average, 103 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Summer High: the July high is around 91 degrees
Winter Low: the January low is 39
Rain: averages 48 inches of rain a year
Snow: averages 0 inches of snow a year
BESTPLACES COMFORT INDEX
The annual BestPlaces Comfort Index for Hilton Head Island is 7.1 (10=best), which means it is one of the least comfortable places in South Carolina.
3.8 / 7.8
Summer / Winter
October, April and May are the most pleasant months in Hilton Head Island, while July and August are the least comfortable months.