The climate in 29812 Barnwell, SC is a humid subtropical climate that experiences hot and humid summers and mild winters. The average high temperature during the summer months is around 90 degrees Fahrenheit and the average low temperature during the winter months is around 40 degrees Fahrenheit. Precipitation throughout the year is about 47 inches and there are about 189 sunny days per year. Winters are usually wetter than summers with most of the precipitation falling between December and March.
Barnwell (zip 29812), South Carolina gets 46 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Barnwell (zip 29812) averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 218 sunny days per year in Barnwell (zip 29812). The US average is 205 sunny days.
Barnwell (zip 29812) gets some kind of precipitation, on average, 101 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.
Weather Highlights
Summer High: the July high is around 92 degrees
Winter Low: the January low is 33
Rain: averages 46 inches of rain a year
Snow: averages 0 inches of snow a year