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Williamston, SC Weather


Williamston, SC climate is warm during summer when temperatures tend to be in the 70's and cold during winter when temperatures tend to be in the 40's.

The warmest month of the year is July with an average maximum temperature of 89.80 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 30.70 degrees Fahrenheit.

Temperature variations between night and day tend to be moderate during summer with a difference that can reach 20 degrees Fahrenheit, and moderate during winter with an average difference of 22 degrees Fahrenheit.

The annual average precipitation at Williamston is 50.96 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is March with an average rainfall of 5.45 Inches.

Weather Data

Normal Climate

Normal Temperatures

(WEST PELZER 2 W Weather station, 2.19 miles from Williamston)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max °F 51.3 56.2 64.0 72.2 79.5 86.2 89.8 88.0 82.3 72.5 63.0 53.8 71.6
Mean °F 41.0 44.6 51.9 59.6 68.0 75.4 79.4 78.0 72.1 60.8 51.8 43.5 60.5
Min °F 30.7 32.9 39.7 47.0 56.4 64.6 68.9 68.0 61.8 49.0 40.5 33.1 49.4

Normal Precipitation

(WEST PELZER 2 W Weather station, 2.19 miles from Williamston)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Inch 5.18 4.39 5.45 3.58 4.15 3.92 4.09 3.90 4.38 3.79 3.92 4.21 50.96